Alloy materials

I. Nickel base alloy
1. The N10276 / C - 276
Product name: Hartshorn alloy /C-276/UNS N10276
International general names: Hahn Alloy, C-276, INCONEL Alloy C-276, HC-276, Hastelloy C-276, UNS N10276, W-NR. 2.4819, ATI C-276, Nicrofer 5716 HMOw-alloy C-276, NAS NW276
Corrosion resistance and main operating environment:
The Hartshorn C-276 is a nickel - chromium - molybdenum alloy containing tungsten. It has a very low silicon carbon content and is considered to be a universal corrosion resistant alloy. The alloy has the following characteristics: (1) excellent corrosion resistance to most corrosive media in oxidation and reduction atmosphere. Excellent resistance to pitting corrosion, crevice corrosion and stress corrosion. The higher molybdenum and chromium content makes the alloy resistant to chloride ion, and the tungsten element further improves the corrosion resistance.
At the same time, C-276 alloy is one of the few materials resistant to the corrosion of chlorine, hypochlorite and chlorine dioxide solution, and has significant corrosion resistance to high concentration of chloride solution, such as ferric chloride and copper chloride. It is one of the few materials that can be used in hot concentrated sulfuric acid solution.
Form a complete set of welding material and welding process: hartz alloy C - 276 welding material selection ERNiCrMo and ENiCrMo - 4-4 wire electrode, welding material size Φ 1.0, 1.2, 2.4, 3.2, 4.0, origin for: America hartz, SMC and nickel.
Material origin: Haynes, SMC, ATI, THyssenKrupp VDM.
Application areas are: power plant desulfurization denitration environmental protection, petrochemical equipment, chemical, fluorine chemical industry, fine chemical, PTA, aviation manufacturing, offshore platform, seawater desalination, papermaking machinery, pharmaceutical equipment, heat exchange equipment, electrochemical, metallurgy, nuclear energy, alkali, shipbuilding, cement manufacturing, composite panels, acetic anhydride, acetic acid salt and plate heat exchanger, bellows expansion joint and other industries and products.

2. N06625 / ALLOY625
Product name: Inconel625/UNS N06625
International general names: Inconel Alloy 625, NS336, NAS 625, W.N.R.2.4856, UNS NO6625, Nicrofer S 6020-FM 625, ATI 625
Corrosion resistance and main operating environment:
INCONEL 625 is a nickel - based austenitic ultra - heat - resistant alloy. Due to the strengthening effect of molybdenum and niobium solid solution contained in ni-Cr alloy, it has ultra-high strength and special anti-fatigue characteristics at low temperature to 1093℃, and is widely used in aviation industry. Although the alloy is designed to adapt to the strength of high temperature environment, the high content of chromium and molybdenum in the alloy has high corrosion resistance to spot and fission corrosion from high oxidation environment to general corrosion environment, showing excellent corrosion resistance characteristics. INCONEL 625 is also highly resistant to chlorine-contaminated media such as seawater, geothermal water, neutral salts, and brine.
Form a complete set of welding material and welding process: the AWS Inconel625 alloy welding recommended A5.14 wire ERNiCrMo ENiCrMo - 3-3 or AWS A5.11 electrode, welding material size Φ 1.0, 1.2, 2.4, 3.2, 4.0, origin for: America hartz, SMC and nickel.  
Material origin: Haynes, SMC, ATI, THyssenKrupp VDM.
Application areas are: chlorinated organic chemical process components, especially in the use of acidic chloride catalysts; Digesters and bleach pools for the manufacture of pulp and paper industries; Absorber, heater, flue gas inlet baffle, fan (wet), agitator, guide plate and flue gas in flue gas desulfurization system; For the manufacture of equipment and components for use in acidic gas environments; Acetic acid and acetic anhydride reaction generator; Sulfuric acid condenser; Pharmaceutical equipment; Bellows expansion joint and other industries and products. 

3.N08825/ALLOY825
Incoloy825\UNS N08825
Incoloy825, NS142, NC 21Fe Du (France), W.N.R.2.4858 NiCr21Mo (Germany), NA 16 (UK), UNS NO6625(USA), NiFe30Cr21Mo3 (ISO)
Corrosion resistance and main service environment: Incoloy825 alloy is a general engineering alloy, which has high corrosion resistance to acid and alkali metal under oxidation and reduction environment. High nickel composition makes the alloy have effective resistance to stress corrosion cracking. Corrosion resistance is good in a variety of media, such as sulfuric acid, phosphoric acid, nitric acid and organic acids, and alkali metals such as sodium hydroxide, potassium hydroxide and hydrochloric acid solutions. The high composite performance of the 825 alloy is demonstrated in nuclear combustion dissolutes with a variety of corrosive media, such as sulfuric acid, nitric acid and sodium hydroxide, all treated in the same facility. It has good corrosion resistance to chlorinated solution, pitting corrosion in seawater and stress corrosion. In addition, it has good corrosion resistance to intercrystalline corrosion.
Form a complete set of welding material and welding process: the AWS Incoloy825 alloy welding recommended A5.14 wire ERNiCrMo ENiCrMo - 3-3 or AWS A5.11 electrode, welding material size Φ 1.0, 1.2, 2.4, 3.2, 4.0, origin for: America hartz, SMC and nickel. Material origin: Mainly Metallurgy of Japan, SMC of the United States, ATI of Metallurgical Union technology of the United States, ThyssenKrupp VDM of Germany.
Application fields: sulfuric acid pickling equipment, phosphoric acid production equipment, petrochemical equipment, coal chemical industry, offshore platform, seawater desalination, composite board, bellow expansion section and other industries and products.

4.N06022/C-22
Product name: Hahn alloy C-22/UNS N06022
International general names: Hahn Alloy, C-22, INCONEL Alloy C-22, HC-22, Hastelloy C-22, UNS N06022, W-NR. 2.4819, ATI C-22, Nicrofer 5621 HMOw-Alloy C-22, NAS NW22
Corrosion resistance and main operating environment:
With Cr, Mo, W content and the control of Fe content, the C-22 alloy shows resistance to both oxidizing and reducing acid corrosion, as well as to containing mixed acids. The alloy is particularly suitable for corrosion resistance to pitting and crevice corrosion in acidic halide environments. The C-22 ni-Cr-Mo alloy, like the C-276, contains tungsten and very low carbon and silicon. It also has the same properties: 1. Excellent corrosion resistance to most corrosive media in oxidation and reduction states; 2. 2. Excellent resistance to point corrosion, crack corrosion and stress corrosion cracking.
The C-22 alloy is an all-purpose ni-Cr-MW-alloy with better overall corrosion resistance than other existing ni-Cr-MW-alloys. C-22 alloy has good resistance to pitting corrosion, crevice corrosion and stress corrosion cracking. It has excellent antioxidant properties in aqueous media, including wet chlorine, nitric acid or mixed acids containing oxidizing acids containing chloride ions. C-22 alloys are unusually resistant to a variety of chemical environments, including strong oxidizing substances such as ferric chloride, copper chloride, chlorine, thermo-contaminated solutions (organic and inorganic), formic acid, acetic acid, cu-anhydride, sea water and salt solutions.
Form a complete set of welding material and welding process: hartz alloy C - 22 welding material selection ERNiCrMo and ENiCrMo - 10-10 wire electrode, the weld material size Φ 2.4, 3.2, 4.0, origin for: America hartz, SMC and nickel.
Material origin: Haynes, SMC, ATI, THyssenKrupp VDM.
Application areas are: power plant desulfurization denitration environmental protection, petrochemical equipment, chemical, fluorine chemical industry, fine chemical, PTA, aviation manufacturing, offshore platform, seawater desalination, papermaking machinery, pharmaceutical equipment, heat exchange equipment, electrochemical, metallurgy, nuclear energy, alkali, shipbuilding, cement manufacturing, composite panels, acetic anhydride, acetic acid salt and plate heat exchanger, bellows expansion joint and other industries and products.

5. N08020 / ALLOY20
Product name: ALLOY20/UNS N08020
International general names: Alloy 20, UNS N08020, NS143, Inconel Alloy20 /NAS 335X, W.N.R.2.4460, Nicrofer 3620 NA-Alloy20, ATI 20
Corrosion resistance and main operating environment:
Alloy 20 has many corrosion resistant alloys with excellent properties, such as excellent resistance to oxidation and medium reducing corrosion, excellent stress corrosion cracking resistance and good local corrosion resistance, and satisfactory corrosion resistance in many chemical process media. Excellent resistance to corrosion and cracking and good resistance to local reduction of the composite medium corrosion, used in sulfuric acid environment and sulfuric acid solution containing halogen ions and metal ions industrial plant.
Supporting welding materials and welding process: AWS A5.14 welding wire ErnicRMO-3 or AWS A5.11 welding rod ENICRMO-3.  
Material origin: Haynes, SMC, ATI, THyssenKrupp VDM.  
Application fields: sulfuric acid pickling equipment, phosphoric acid production equipment, petrochemical equipment, coal chemical industry, offshore platform, seawater desalination, composite board, bellow expansion section and other industries.

6. N08800 / ALLOY800
Product name: Incoloy800/UNS N08800
Incoloy alloy 800/800h /800HT, UNS N08800/ N08810/ N08811, W. Nr./EN1.4876, 1.4958/1.14959, Nicrofer 3220 alloy 800/800h /800HP, NAS 800/800h /800HT, ATI 800/800h /800AT
Corrosion resistance and main operating environment:
The chemical composition of incoloy800/800h /800HT is very similar. Therefore, incoloy800/800h /800HT all have good corrosion resistance to reduction, oxidation and nitriding medium and corrosion resistance to REDOX alternating medium, and have high metallurgical stability in long-term application at high temperature. However, due to their different Al+Ti contents, the three materials will be used in different environments. Specifically, the INCOLOY 800 will perform at zero kelvin, room temperature and 600℃. INCOLOY 800H has a high tensile strength at 600℃ or above due to its Al+Ti content not higher than 0.7%, and has good toughness during long hours at 700℃ or below. INCOLOY 800HT has excellent yield strength above 700 ° C.
Form a complete set of welding material and welding process: 800/800 h alloy, the AWS welding recommended A5.14 wire ERNiCr ERNiCrCoMo - 1-3 or AWS A5.11 electrode ENiCrFe - 3, weld material size Φ 2.4, 3.2, 4.0, origin for: America hartz, SMC and nickel. Material origin: Mainly Metallurgy of Japan, SMC of the United States, ATI of Metallurgical Union technology of the United States, ThyssenKrupp VDM of Germany.
Application areas are: retort furnace and muffle furnace and heat treatment fixture and baskets, vacuum furnace equipment, the highest working temperature is 1000 degrees chloride equipment, titanium dioxide factory, retort furnace, in the process of fatty acid of heater, distiller, bubble-cap tower and condenser, sodium sulfide in the process of manufacture of the evaporator tube and tube plate and pressure plate, rosin acid in the pulp manufacturing processing equipment, etc.
 

7. N08810/ALLOY800H
Product Name: Incoloy800H / UNS n08810
International names: Incoloy alloy 800 / 800H / 800ht, UNS n08800 / n08810 / n08811, W. Nr. / en1.4876, 1.4958/1.14959, nicolfer 3220 alloy 800 / 800H / 800hp, NAS 800 / 800H / 800ht, ATI 800 / 800H / 800at
Corrosion resistance and main application environment:
The chemical composition of Incoloy800 / 800H / 800ht is very similar, so they all have good corrosion resistance in reduction, oxidation, nitriding medium and alternate oxidation-reduction medium, and have high metallurgical stability in high temperature and long-term application. Incoloy 800H has good tensile strength above 600 ℃ and good toughness under 700 ℃ for a long time because the content of (Al + Ti) is less than 0.7%.
Matching welding materials and welding process: the welding of 800 / 800H alloy is recommended to use AWS a5.14 welding wire ernicr-3 or ernicrcomo-1 or AWS a5.11 welding rod enicrfe-3, the welding material size is Φ 2.4, 3.2, 4.0, the origin is Hastelloy, SMC and deni.
Origin of materials: mainly Japan metallurgy, SMC, ATI and VDM.
The application fields include: retort furnace, muffle furnace and heat treatment fixture and material basket, vacuum furnace device, chlorination equipment with maximum working temperature of 1000 degrees Fahrenheit, titanium dioxide plant, retort furnace, heater, distiller, bubble cap tower and condenser in fatty acid process, evaporator tube, tube sheet and tablet plate in sodium sulfide manufacturing process, rosin acid treatment equipment in pulp manufacturing, etc.
 
8. N04400/MONEL400
Product Name: MONEL400 / UNS n04400
International general name: Monel alloy 400, UNS n04400, nicu30fe, w-nr: 2.4360, nicorros alloy 400, ati400, NAS nw400
Corrosion resistance and main application environment:
MONEL400 is generally superior to nickel copper in corrosion resistance. It is more resistant to reducing medium corrosion than pure nickel and oxidation medium corrosion than pure copper. It has very good corrosion resistance to sulfuric acid, phosphoric acid and carbon. Especially, it is resistant to the corrosion of hydrochloric acid and hot concentrated alkali. MONEL400 alloy has excellent corrosion resistance in fluorine gas, hydrochloric acid, sulfuric acid, hydrofluoric acid and their derivatives. At the same time, it has better corrosion resistance than copper based alloy in seawater.
Supporting welding materials and welding process: it is recommended to use AWS a5.14 welding wire ernicu-7 or AWS a5.11 electrode enicrcu-7 for welding MONEL400 alloy. The sizes of welding materials are Φ 2.4, 3.2 and 4.0, and the origin is SMC and denic of USA.  
Material origin: mainly including Japan metallurgy, USA SMC, Germany ThyssenKrupp VDM.  
Application fields: sulfuric acid and hydrofluoric acid equipment, marine heat exchanger, seawater desalination equipment, salt production equipment, marine and chemical processing equipment, propeller shaft and pump, gasoline and water tank, etc

 

2、 Super stainless steel

1. S31254/254SMO

Product Name: 254SMO / UNS s31254

International general name: 254SMO, UNS s31254, W. - Nr. 1.4547, f44, NAS 185n, 00Cr20Ni18Mo6CuN, 6Mo

Corrosion resistance and main application environment:

254SMO stainless steel is a kind of super austenitic stainless steel with high corrosion resistance. It is developed for halide and acid environment. It is widely used in harsh working conditions such as high concentration chloride medium and seawater. 254SMO is much better than other stainless steels in various industrial occasions of acid medium, especially in the acid containing halide.

Due to its low carbon content and high molybdenum content, it has good pitting corrosion resistance, crevice corrosion resistance and excellent intergranular corrosion resistance. It is a kind of cost-effective stainless steel, which is widely used in chemical industry, desulfurization and environmental protection at home and abroad.

In pure sulfuric acid, 254SMO has much higher corrosion resistance than 316 stainless steel. However, compared with 904L (no8904) stainless steel, the corrosion resistance of 254SMO is slightly weaker at high concentration. In sulfuric acid containing chloride ion, 254SMO has the greatest corrosion resistance. Because local corrosion and uniform corrosion may occur, 316 ordinary stainless steel cannot be used in hydrochloric acid, but 254SMO can be used in diluted hydrochloric acid at normal temperature. There is no need to worry about pitting below the boundary line. But we must try to avoid the existence of cracks. In Fluorosilicic Acid (h2sif4) and hydrofluoric acid (HF), the corrosion resistance range of common stainless steel is very limited, while 254SMO can be used in a wide range of concentration and temperature.

Supporting welding materials and welding process: high configuration 625 alloy series welding materials, namely ERNiCrMo-3 welding wire and enicrmo-3 welding rod, are selected for 254SMO welding. The sizes of welding materials are Φ 1.0, 1.2, 2.4, 3.2 and 4.0, and the producing areas are Hastelloy, SMC and denic.  

Material origin: mainly metallurgy of Japan, Nippon Steel sumitokin of Japan and Outokumpu of Sweden.

Application fields include: Petroleum and petrochemical equipment, such as bellows in petrochemical equipment, pulp and paper bleaching equipment, such as pulp digester, bleaching equipment, barrel and pressure roller for filter scrubber, etc., flue gas desulfurization device in power plant, mainly used parts include: absorber tower body, flue, baffle plate, internals, spray system, etc., offshore system or seawater treatment system, such as power plant Thin wall condensing pipes, desalination equipment, desalination industry, such as salt making or desalination equipment, heat exchanger, especially in the environment with chloride ions.

 

2.N08926/1.4529

Product Name: 1.4529/uns n08926

International general name: w.nr.1.4529, desulfurization and denitration alloy, UNS n08926, cronifer1925hmo, Incoloy alloy25-6mo, NAS 255nm

Corrosion resistance and main application environment:

1.4529 (UNS n08926) has very high pitting corrosion resistance and crevice corrosion resistance in halide medium and sour hydrogen containing environment. It can effectively resist chloride stress corrosion. It also has good corrosion resistance and good stability in oxidizing and reducing medium. Its mechanical properties are slightly better than 904L. It can be used for manufacturing pressure vessels from - 196 ℃ to 400 ℃. Typical working condition: 60% sulfuric acid, below 80 ℃, annual corrosion rate < 0.1mm

Matching welding materials and welding process: it is recommended to use ERNiCrMo-3 welding wire of AWS a5.14 or enicrmo-3 welding rod of AWS a5.11.  

Material origin: mainly metallurgy in Japan, ThyssenKrupp VDM in Germany.

Application fields: flue gas desulfurization unit, evaporator, heat exchanger, filter and mixer for phosphoric acid production, sulfuric acid conveying device, condenser, fire extinguishing system, seawater filtration system, hydraulic and recharge pipeline system in offshore industry, pulp drift system, salt evaporation condenser, power plant polluted cooling water piping system, reverse osmosis seawater desalination device, and corrosive chemicals transportation Transportation and storage tank, organic matter production equipment of halogen acid catalysis, etc.

 

3.N08904/904L

Product Name: 904L / UNS N08904

International general names: 904L, al-904l, UNS N08904, sus890l, f904l, W. - Nr. 1.4539, NAS 255, 00cr20ni25mo4.5cu

Corrosion resistance and main application environment:

904L is a kind of austenitic stainless steel with low carbon content and high metallization, which is designed for the environment with severe corrosion conditions. It has high cost performance with consideration of both price and performance. Due to the addition of 1.5% copper, it has excellent corrosion resistance for reducing acids such as sulfuric acid and phosphoric acid. It also has excellent corrosion resistance to stress corrosion, pitting corrosion and crevice corrosion caused by chloride ion, and has good resistance to intergranular corrosion. In the concentration range of 0-98%, the temperature of 904L can be as high as 40 ℃. In the range of 0-85% phosphoric acid, its corrosion resistance is very good. In industrial phosphoric acid produced by wet process, impurities have a strong influence on corrosion resistance. In all kinds of phosphoric acid, the corrosion resistance of 904L is better than that of ordinary stainless steel. In strong oxidizing nitric acid, the corrosion resistance of 904L steel is lower than that of high alloy steel without molybdenum. In hydrochloric acid, the use of 904L is limited to a lower concentration of 1-2%. Due to the high nickel content, 904L has high stress corrosion cracking resistance in chloride solution, concentrated hydroxide solution and hydrogen sulfide rich environment

Matching welding materials and welding process: er385 welding wire and E385 welding rod are selected for 904L welding. The welding materials are Φ 1.6, 2.4, 2.5, 3.2 and 4.0 in size, and the origin is Austria G & G, Sweden Avesta and Italy TFA.

 

Material origin: mainly Japan metallurgy and Sweden Outokumpu.
The application fields include: Petroleum and petrochemical equipment, such as reactor in petrochemical equipment, sulfuric acid storage and transportation equipment, such as heat exchanger, etc., flue gas desulfurization device in power plant. The main application parts include: absorber body, flue, damper plate, internals, spray system, etc., scrubber and fan in organic acid treatment system, seawater treatment device, seawater heat exchanger, etc Paper industry equipment, sulfuric acid and nitric acid equipment, acid making, pharmaceutical industry and other chemical equipment, pressure vessel, food equipment, pharmaceutical factory: centrifuge, reactor, etc., plant food: soy sauce tank, cooking wine, salt tank, equipment and dressing.
 
4.N08367/AL-6XN
Product Name: AL-6XN / UNS N08367
International general name: AL-6XN, desulfurization and denitrification alloy, UNS N08367, cronifer1925hmo, Incoloy alloy25-6hn, NAS 255nm
Corrosion resistance and main application environment:
AL-6XN (UNS N08367) is a kind of super austenitic stainless steel with excellent resistance to chloride ion pitting and crevice corrosion. As a corrosion-resistant alloy with good cost performance, its comprehensive corrosion resistance has a great leap forward compared with 316L. Meanwhile, compared with other corrosion-resistant nickel based alloys such as C-276, its corrosion resistance is close to that of C-276 and other corrosion-resistant nickel based alloys. AL-6XN alloy has higher tensile strength than conventional austenitic stainless steel (such as 304316317) due to the addition of significant nitrogen in the alloy. Meanwhile, it maintains excellent material toughness and impact strength. The allowable stress value of AL-6XN is 40% higher than that of 316L, Typical working conditions: 60% sulfuric acid, below 80 ℃, annual corrosion rate < 0.1 mm
Matching welding materials and welding process: adopt AWS a5.14 welding wire ERNiCrMo-3 or AWS a5.11 welding rod enicrmo-3
Material origin: mainly from Japan metallurgy, US metallurgy union Technology ATI
Application fields: chemical vessels and pipelines, offshore oil and gas platform system, condenser in contact with sea water or crude oil, heat exchanger and pipeline system, filter press in pulp bleaching process, storage tank and pressure roller, flue gas desulfurization (FGD) equipment in thermal power plant, steel plant, petrochemical enterprise, crude oil distillation tower and packing, desalination equipment and pump, servo water pipeline system in nuclear power plant, surge tank Transformer case, pharmaceutical equipment and food production equipment exposed in marine environment.

3、 Duplex stainless steel

1. S32750/2507

Product Name: 2507 duplex stainless steel

International general name: saf 2507, UNS S32750, NAS 74n, F53, W. - Nr. 1.4410

Executive Standards: ASTM a240 / ASME sa-240, ASTM a276, ASTM A182 / ASME sa-182, ASTM A312 / ASME A312

Corrosion resistance and main application environment: 2507 duplex stainless steel has strong overall corrosion resistance to organic acids such as formic acid and acetic acid due to its high chromium and molybdenum content. 2507 duplex stainless steel also has strong corrosion resistance to inorganic acids, especially those containing chlorides. Compared with 904L, 2507 duplex stainless steel has stronger corrosion resistance to dilute sulfuric acid mixed with chloride ions. 904L is an austenitic alloy designed to resist corrosion in pure sulfuric acid. 316L can not be used in hydrochloric acid environment, it may suffer local corrosion or overall corrosion. 2507 duplex stainless steel is used in dilute hydrochloric acid environment and has strong resistance to pitting corrosion and crevice corrosion.

Matching welding materials and welding process: er2594 welding wire and e2594 welding rod are selected for welding of 2507 duplex stainless steel. The welding materials are Φ 1.6, 2.4, 2.5, 3.2 and 4.0, and the origin is Austria GG, Sweden Avesta and Italy TFA

Material origin: mainly metallurgy of Japan, Nippon Steel sumitokin of Japan and Outokumpu of Sweden.

Application fields include: oil and gas industry equipment; offshore platform, heat exchanger, underwater equipment, fire fighting equipment; chemical processing industry, utensils and pipelines; desalination, high-pressure RO equipment and submarine pipelines; energy industry such as power plant desulfurization and denitration FGD system, industrial washing system, absorption tower; mechanical parts (high strength, anti-corrosion, wear-resistant parts).

 

2. S32205/S31803

Product Name: 2205 duplex stainless steel

International general name: 2205 duplex stainless steel, UNS S32205, UNS S32205, NAS 329j3l, F51, W. - Nr. 1.4462, 00Cr22Ni5Mo3N

Corrosion resistance and main application environment: compared with 316L and 317L austenitic stainless steel, 2205 alloy has superior performance in pitting corrosion and crack corrosion. It has high corrosion resistance. Compared with austenite, it has lower thermal expansion coefficient and higher thermal conductivity. Compared with austenitic stainless steel, the compressive strength of 2205 duplex stainless steel is twice that of 316L and 317L duplex stainless steel. Alloy 2205 is particularly suitable for the temperature range of - 50 ° f / + 600 ° F, and can also be used at lower temperatures under strictly restricted conditions (especially for welded structures).

Supporting welding materials and welding process: er2209 welding wire and E2209 electrode are selected for 2205 duplex stainless steel welding, and the welding material sizes are Φ 1.6, 2.4, 2.5, 3.2 and 4.0. Origin: GG Austria, Avesta Sweden and TFA Italy

Material origin: mainly metallurgy of Japan, Nippon Steel of Japan and Outokumpu of Sweden.

Application fields include: oil and gas industry equipment; offshore platform, heat exchanger, underwater equipment, fire fighting equipment; chemical processing industry, utensils and pipelines; desalination, high-pressure RO equipment and submarine pipelines; energy industry such as power plant desulfurization and denitration FGD system, industrial washing system, absorption tower; mechanical parts (high strength, anti-corrosion, wear-resistant parts).

4、 Imported stainless steel

1. 317L

Product Name: 317L / 00cr19ni13mo3

International names: 317L, UNS s31726, Sus 317L, W. - Nr. 1.4438

Corrosion resistance and main application environment:

317L (00cr19ni13mo3, sus317l) alloy is austenitic stainless steel based on molybdenum. Compared with conventional Cr Ni austenitic stainless steel such as 304 alloy, it has stronger chemical corrosion resistance. In addition, compared with conventional stainless steel, 317L alloy has higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. It is low carbon grade or l grade, which has anti sensitization performance during welding and heat treatment.

The application fields include: Petroleum and natural gas industry equipment; offshore platform, heat exchanger, underwater equipment, fire fighting equipment; chemical processing industry, utensils and pipelines; desalination, high pressure RO equipment and submarine pipeline; energy industry such as FGD system for power plant desulfurization and denitrification, industrial scrubbing system, absorption tower; mechanical parts (high strength, corrosion resistance and wear-resistant parts).

3、 Duplex stainless steel

1. S32750/2507

Product Name: 2507 duplex stainless steel

International general name: saf 2507, UNS S32750, NAS 74n, F53, W. - Nr. 1.4410

Executive Standards: ASTM a240 / ASME sa-240, ASTM a276, ASTM A182 / ASME sa-182, ASTM A312 / ASME A312

Corrosion resistance and main application environment: 2507 duplex stainless steel has strong overall corrosion resistance to organic acids such as formic acid and acetic acid due to its high chromium and molybdenum content. 2507 duplex stainless steel also has strong corrosion resistance to inorganic acids, especially those containing chlorides. Compared with 904L, 2507 duplex stainless steel has stronger corrosion resistance to dilute sulfuric acid mixed with chloride ions. 904L is an austenitic alloy designed to resist corrosion in pure sulfuric acid. 316L can not be used in hydrochloric acid environment, it may suffer local corrosion or overall corrosion. 2507 duplex stainless steel is used in dilute hydrochloric acid environment and has strong resistance to pitting corrosion and crevice corrosion.

Matching welding materials and welding process: er2594 welding wire and e2594 welding rod are selected for welding of 2507 duplex stainless steel. The welding materials are Φ 1.6, 2.4, 2.5, 3.2 and 4.0, and the origin is Austria GG, Sweden Avesta and Italy TFA

Material origin: mainly metallurgy of Japan, Nippon Steel sumitokin of Japan and Outokumpu of Sweden.

Application fields include: oil and gas industry equipment; offshore platform, heat exchanger, underwater equipment, fire fighting equipment; chemical processing industry, utensils and pipelines; desalination, high-pressure RO equipment and submarine pipelines; energy industry such as power plant desulfurization and denitration FGD system, industrial washing system, absorption tower; mechanical parts (high strength, anti-corrosion, wear-resistant parts).

 

2. S32205/S31803

Product Name: 2205 duplex stainless steel

International general name: 2205 duplex stainless steel, UNS S32205, UNS S32205, NAS 329j3l, F51, W. - Nr. 1.4462, 00Cr22Ni5Mo3N

Corrosion resistance and main application environment: compared with 316L and 317L austenitic stainless steel, 2205 alloy has superior performance in pitting corrosion and crack corrosion. It has high corrosion resistance. Compared with austenite, it has lower thermal expansion coefficient and higher thermal conductivity. Compared with austenitic stainless steel, the compressive strength of 2205 duplex stainless steel is twice that of 316L and 317L duplex stainless steel. Alloy 2205 is particularly suitable for the temperature range of - 50 ° f / + 600 ° F, and can also be used at lower temperatures under strictly restricted conditions (especially for welded structures).

Supporting welding materials and welding process: er2209 welding wire and E2209 electrode are selected for 2205 duplex stainless steel welding, and the welding material sizes are Φ 1.6, 2.4, 2.5, 3.2 and 4.0. Origin: GG Austria, Avesta Sweden and TFA Italy

Material origin: mainly metallurgy of Japan, Nippon Steel of Japan and Outokumpu of Sweden.

Application fields include: oil and gas industry equipment; offshore platform, heat exchanger, underwater equipment, fire fighting equipment; chemical processing industry, utensils and pipelines; desalination, high-pressure RO equipment and submarine pipelines; energy industry such as power plant desulfurization and denitration FGD system, industrial washing system, absorption tower; mechanical parts (high strength, anti-corrosion, wear-resistant parts).

4、 Imported stainless steel

1. 317L

Product Name: 317L / 00cr19ni13mo3

International names: 317L, UNS s31726, Sus 317L, W. - Nr. 1.4438

Corrosion resistance and main application environment:

317L (00cr19ni13mo3, sus317l) alloy is austenitic stainless steel based on molybdenum. Compared with conventional Cr Ni austenitic stainless steel such as 304 alloy, it has stronger chemical corrosion resistance. In addition, compared with conventional stainless steel, 317L alloy has higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. It is low carbon grade or l grade, which has anti sensitization performance during welding and heat treatment.

The application fields include: Petroleum and natural gas industry equipment; offshore platform, heat exchanger, underwater equipment, fire fighting equipment; chemical processing industry, utensils and pipelines; desalination, high pressure RO equipment and submarine pipeline; energy industry such as FGD system for power plant desulfurization and denitrification, industrial scrubbing system, absorption tower; mechanical parts (high strength, corrosion resistance and wear-resistant parts).

840 (s33400) alloy is a kind of austenitic stainless steel containing titanium and aluminum. It contains enough chromium to form and maintain sufficient scale of chromium oxide to protect it at high temperature. It is more resistant to high temperature than traditional chromium nickel stainless steel such as 304. Its higher nickel content makes it have better oxidation resistance than standard 18-8 stainless steel, and its oxidation resistance is no less than that of service temperature up to Higher grade alloys at 1900 degrees Fahrenheit (1038 degrees Celsius). Therefore, alloy 840 (s33400) is an ideal material for manufacturing electric heating tubes, automotive emission control systems and other high temperature resistant products.

Application scope: due to its formability, weldability, corrosion resistance and oxidation resistance, 840 alloy is a common material for electric heating pipe, heat exchanger, equipment heater, industrial heating furnace and other equipment, and is also commonly used in automobile exhaust system.

5、 Welding material

1. E(R)NiCrMo-3

a. Inconel625 / ERNiCrMo-3 welding wire

Inconel 625 welding wire is mainly used for welding Inconel 625 alloy, incoloy825-25-6mo alloy and other molybdenum containing stainless steel by GMAW or tungsten inert gas welding. It can also be used for surfacing of steel, nickel steel and various corrosion-resistant alloys, such as 20 alloy. Inconel 625 welding wire can be used to weld Inconel 625 alloy or nickel steel, or surface surfacing of steel. When submerged arc welding, incoflux7 submerged arc flux should be selected. In a wide temperature range, the weld metal has high strength and local corrosion resistance such as pitting corrosion and crack corrosion. Inconel 625 welding wire has a wide range of applications, which can be used for welding of dissimilar materials, such as Inconel series alloys and Incoloy

Welding of series alloy.

b. Inconel112 / enicrmo-3 electrode

Inconel 112 electrode is used in manual arc welding of Inconel 625, Incoloy 825-25-6mo alloy and other molybdenum containing stainless steel. It can also be used in surfacing of steel and welding of various corrosion-resistant alloys such as 20 corrosion-resistant alloy. The weld metal formed by this electrode has high strength and strong corrosion resistance at room and high temperature, including pitting corrosion resistance, crevice corrosion resistance and stress corrosion cracking in polysulfuric acid medium. Inconel 112 electrode can be used for welding dissimilar metals, including Inconel series alloy, Incoloy series alloy, stainless steel, low alloy steel and carbon steel. Inconel112 welding rod shall be directly connected and suitable for all position welding.

2.  E(R)NiCrMo-4

Inco-weld C-276 / ernicrmo-4 welding wire

Inco-weld C-276 welding wire is mainly used for TIG welding and MIG welding of Inconel C276 alloy and other Ni Cr Mo alloys, and can also be used for surface surfacing of steel. This kind of welding material shows excellent corrosion resistance in various corrosive media, especially the ability of pitting corrosion and crack corrosion. It can be used for welding of dissimilar materials, including Inconel C276 alloy with other nickel alloys, stainless steel and low alloy steel.

 

3.E(R)NiCr-3

Inconel 82 / ernicr-3 welding wire

Inconel 82 welding wire is used for welding Inconel 600 / 601 / 690 alloy and Incoloy 800 / 800ht / 330 alloy by GMAW, tungsten inert gas welding and submerged arc welding. It can also be used for surface surfacing of steel. Incoflux 4 should be used in submerged arc welding with ni-rod 99 welding wire. When using incoflux 6 for submerged arc welding, the maximum number of passes is three. The weld metal formed by inconel82 welding wire has higher strength and better corrosion resistance, better oxidation resistance and higher creep rupture strength at high temperature.

In addition, inconel82 welding wire also has a wide range of applications, which can be used for welding dissimilar materials, such as Inconel series alloy, Incoloy series alloy, or Incoloy 330 alloy and nickel, Monel series alloy and stainless steel and carbon steel. It can also be used for welding stainless steel and nickel based alloy or carbon steel.

 

4.E(R)NiCrMo-10

Inconel622 / ernicrmo-10 welding wire

Inconel 622 welding wire is mainly used for MIG welding or tungsten inert gas welding for inconel622 / 625 alloy and incoloy25-6mo-825 alloy. Because of its excellent resistance to preferential corrosion, weld metal is also widely used in welding molybdenum containing stainless steel, Inconel C-276 alloy and Inconel 625 alloy. High chromium and high molybdenum make this material have excellent pitting corrosion resistance and crevice corrosion resistance. Inconel 622 welding wire has a wide range of applications, and can be used for welding dissimilar materials, such as Inconel series alloy, Incoloy series alloy, carbon steel, low alloy steel and stainless steel.

 

5.  E(R)NiCrFe-3

Inconel182 / enicrfe-3 electrode

Inconel 182 electrode is suitable for manual arc welding Inconel 600 / 601 / 690 alloy. The weld metal formed by this kind of electrode has high high temperature strength and oxidation resistance, and can meet the demanding requirements of X-ray radiography. Inconel 182 electrode has a wide range of applications, which can be used for welding of different materials, such as Inconel series alloy, Incoloy series alloy and carbon steel, stainless steel, nickel and Monel series alloy welding;

Monel series alloy and carbon steel welding; nickel and stainless steel welding; stainless steel and carbon steel welding. Inconel 182 welding rod is suitable for all position welding, and DC positive connection shall be adopted during welding.

6. E(R)NiCu-7
Monel 60 / ernicu-7 welding wire
Monel 60 welding wire is mainly used for welding MONEL400 alloy, R404 alloy and K-500 alloy by means of tungsten inert gas welding, gas shielded metal arc welding and submerged arc welding. It can also be used for surface surfacing welding of steel products by GMAW and submerged arc welding. For specific GMAW conditions, nickle 61 nickel wire is recommended to cover the surface. Incoflux5 flux is required for submerged arc welding with Monel 60 wire. The weld metal formed by Monel ﹣ 60 welding wire has high strength, which is similar to Monel ﹣ 400 alloy. It has strong corrosion resistance in a variety of media, such as seawater, salt and reducing acid. When using this electrode to weld Monel K-500 alloy, the strength is lower than that of the base metal because the filler metal of the weld can not produce the effect of age hardening.
 
7.  E(R)2209
2205 duplex stainless steel / er2209 welding wire
Er2209 electrode is Cr Ni Mo welding wire, which can weld duplex stainless steel S31803 / S32205, i.e. 22% cr-5% ni-2% mo-0.15% n. It can also be used for welding saf2304. It is used for welding pipeline system, oil outlet pipeline and riser of offshore platform oil and gas and petrochemical equipment. There are about 50:50 ferrite and austenite in duplex stainless steel tube, plate, device and forging body. Good corrosion resistance to external environment. Good resistance to stress corrosion cracking caused by chloride ions.
It can be used for short arc, jet arc or pulse arc welding.
 
8.  E(R)2594
2507 duplex stainless steel / er2594 welding wire
2507 welding wire er2594 is designed for welding SAF2507, ASTM s32760, s32550, and s31260, and can also be used for welding 2205 with higher corrosion resistance requirements, such as root welding of pipes.
 
9. E(R)385
904L stainless steel / er385 welding wire
904L welding wire er385 is designed for welding 904L welding or similar steel grades, and can also be used for welding ASTM 316 in case of no ferrite content requirements, such as low temperature or no magnetic requirements. This kind of welding material has higher impact value at low temperature. All austenite structure weld is more sensitive to cold crack or hot crack than 316 weld, so heat input should be reduced as much as possible, lower interlayer temperature and lower melting rate of base metal. Pulsed arc is recommended.
 
10.253MA
253MA welding wire
253MA welding wire is designed for welding high temperature steel: 253MA, used in furnace, combustion chamber, burner, etc. The welding material has excellent performance at 1100-850 ℃. 253 Ma MIG welding wire uses jet arc and pulse arc, which has excellent operation performance. However, when welding 253MA steel, the black skin plate and the previous weld must be carefully cleaned and polished.