Here are a few references.
The most commonly used Hastelloy C-276 Hastelloy, Ni-Cr-Mo alloy, is resistant to high temperature and corrosion.
Characteristics and application fields of Hastelloy C-276;
The alloy has excellent corrosion resistance to most corrosive media in oxidation and reduction States. Excellent resistance to pitting corrosion, crevice corrosion and stress corrosion cracking. The alloy is suitable for various chemical processing industries containing oxidation and reduction media. The high content of molybdenum and chromium makes the alloy resistant to chloride ion corrosion, and tungsten further improves its corrosion resistance. Hastelloy? C-276 is one of the few materials that can resist the corrosion of wet chlorine, hypochlorite and chlorine dioxide solution, and the alloy has obvious corrosion resistance to high concentration chloride solution (such as ferric chloride and copper chloride).
Similar brands of Hastelloy C-276:
W. No.2.48 19? NiMo 16Cr 15W？ (Germany)? NC 17D？ (France) NS334
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Hastelloy C-276? Metallographic structure:
The alloy has a face-centered cubic lattice structure.
Technological properties and requirements of Hastelloy C-276;
1. The lower the sulfur content in hot working fuel, the better. Sulfur content in natural gas should be less than 0. 1%, and sulfur content in heavy oil should be less than 0.5%.
2. The hot working temperature range of the alloy is 1200℃ ~ 950℃, and the cooling mode is water cooling or rapid air cooling.
3. Suitable for any traditional welding process, such as tungsten inert gas shielded welding, plasma arc welding, manual sub-arc welding, metal inert gas shielded welding and metal inert gas.
Main specifications of Hastelloy C-276:
Hastelloy C-276 seamless pipe, Hastelloy C-276 steel plate, Hastelloy C-276 round steel, Hastelloy C-276 forging, Hastelloy C-276 flange, Hastelloy C-276 circular ring, Hastelloy C-276 welded pipe, Hastelloy C-276 steel strip, Hastelloy C-276 straight rod, Hastelloy C-276 wire rod and its supporting welding materials, Hastelloy C-276 machined parts, etc.
Hastelloy C-22 is a series of Hastelloy materials, nickel-based alloy, with high temperature resistance and corrosion resistance.
Hastelloy C-22? Brand:
Hastelloy C-22, Inconel C-22, HC-22, Hastelloy C-22, NS338 N06022, W.-Nr. 2.4602, ATI C-22, NiCr-Fe alloy 562 1HMOW alloy C-22, NAS NW22.
Hastelloy C-22 implementation standard:
TM B575/ASME s b-575、ASTM B574/ASME SB-574、ASTM B622/ASME SB-622、ASTM B6 19/ASME s b-6 19、ASTM B366/ASME SB-366、ASTM B564/ASME SB-564
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Hastelloy C-22 heat treatment:
Keep the temperature at1150-1175℃ 1-2 hours, and carry out rapid air cooling or water cooling. ?
Characteristics of Hastelloy C-22;
Hastelloy C-22 alloy is a Ni-Cr-Mo-W alloy with QUAN energy, which has better overall corrosion resistance than other existing Ni-Cr-Mo alloys, including Hastelloy C-276, C4 alloy and 625 alloy. Hastelloy C-22 alloy has good resistance to pitting corrosion, crevice corrosion and stress corrosion cracking. It has excellent oxidation resistance in aqueous medium, including mixed acid of wet chlorine, nitric acid or oxidizing acid containing chloride ion. At the same time, Hastelloy C-22 alloy also has the ideal ability to resist the reduction and oxidation environment encountered in the process. According to the performance of this wide area network, it can be used in some troublesome environments or in factories with various production purposes. Hastelloy C-22 alloy has abnormal resistance to various chemical environments, including strong oxidizing substances, such as ferric chloride, copper chloride, chlorine gas, thermal pollution solutions (organic and inorganic), formic acid, acetic acid, acetic anhydride, seawater and salt solution. Hastelloy C-22 alloy has the ability to resist the formation of grain boundary precipitation in welding heat affected zone, which makes it suitable for many chemical processes in welding state.
Hastelloy C-22? Metallographic structure:
Hastelloy C-22 has a face-centered cubic lattice structure.
Hastelloy C-22? Corrosion resistance:
Hastelloy C-22 alloy is suitable for various chemical processing industries containing oxidation and reduction media. The high content of molybdenum and chromium makes the alloy resistant to chloride ion corrosion, and tungsten further improves its corrosion resistance. Hastelloy C-22 is one of the few materials that can resist the corrosion of wet chlorine, hypochlorite and chlorine dioxide solution. The alloy has obvious corrosion resistance to high concentration chloride solutions (such as ferric chloride and copper chloride).
Hastelloy C-22? Scope of application The application fields are:
Hastelloy C-22 alloy has been widely used in chemical and petrochemical fields, such as components and catalytic systems in contact with chlorine-containing organic compounds. This material is especially suitable for high temperature, mixed with inorganic and organic acids (such as formic acid and acetic acid) and seawater corrosion.
The application fields include: power plant desulfurization and denitrification, environmental protection, petrochemical equipment, coal chemical industry, fluorine chemical industry, fine chemical industry, PTA, aviation manufacturing, offshore platform, seawater desalination, papermaking machinery, pharmaceutical equipment, heat exchange equipment, electrochemistry, metallurgy, nuclear energy, chlor-alkali, shipbuilding, cement manufacturing, composite plate, acetic anhydride, salt making, plate heat exchanger, bellows expansion joint and other industries and products.
Hastelloy C-22? Other application fields:
1. acetic acid/acetic anhydride
Step 2: acid leaching
3. cellophane manufacturing
4. Chlorination system
5. Complex mixed acids
6. Galvanized grooved roll
7. Expansion bellows
8. Flue gas scrubber system
9. Geothermal wells
10. Cleaning agent for hydrogen fluoride furnace
1 1. Incineration scrubber system
12. nuclear fuel regeneration
13. Pesticide production
14. Phosphoric acid production
15. Pickling system
16. Plate heat exchanger
17. Selective filtration system
18. Sulfur dioxide cooling tower
19. sulfonation system
20. Tube heat exchanger
2 1. surface valve
Main specifications of Hastelloy C-22:
Hastelloy C-22? Hastelloy C-22 seamless pipe? Steel plate, Hastelloy C-22? Round steel, Hastelloy C-22? Hastelloy C-22 forgings? Frank, Hastelloy C-22? Ring, Hastelloy C-22? Hastelloy C-22 welded pipe? Hastelloy C-22 steel strip? Straight bar, Hastelloy C-22? Welding wire and auxiliary welding material, Hastelloy C-22? Round cake, Hastelloy C-22? Flat steel, Hastelloy C-22? Hexagon bar, Hastelloy C-22? Big and small heads, Hastelloy C-22? Elbow, Hastelloy C-22? Tee, Hastelloy C-22? Machining parts, Hastelloy C-22? Bolts and nuts, Hastelloy C-22? Fasteners, etc.
Hastelloy C-2000/ N06200?
Corresponding brand: w.nr2.4675 uns n06200aw055? NS345 00Cr20Mo 16？
Applicable standard: ASTM B6 19 ASTM B574.
The development of Hastelloy C-2000 expands the application range of single alloy. Hastelloy C-2000 is an alloy that can resist a series of corrosive chemicals (including sulfuric acid, hydrochloric acid and hydrofluoric acid) by adding copper to Ni-Cr-Mo system. The combination of molybdenum and copper provides excellent corrosion resistance for the reducing medium, and the high chromium content makes it have good oxidation resistance.
Applications include: chemical processing.
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Main specifications of Hastelloy C-2000:
Hastelloy C-2000 seamless pipe, Hastelloy C-2000 steel plate, Hastelloy C-2000 round steel, Hastelloy C-2000 forging, Hastelloy C-2000 flange, Hastelloy C-2000 circular ring, Hastelloy C-2000 welded pipe, Hastelloy C-2000 steel strip, Hastelloy C-2000 straight rod, Hastelloy C-2000 welding wire and its supporting welding materials, Hastelloy C-2000.
Hastelloy C-4/ N06455
Corresponding brand: w.nr2.4 10? N06455？ AWS 052
Applicable standard: ASTM B574 ASTM B6 19.
Nickel-chromium-molybdenum alloy can resist high temperature, aiming at avoiding high heat in the welding area, which will inevitably accumulate too much heat. Its resistance to general corrosion, local corrosion and stress corrosion cracking is similar to Hastelloy C-276.
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Hastelloy C-4 seamless pipe, Hastelloy C-4 steel plate, Hastelloy C-4 round steel, Hastelloy C-4 forging, Hastelloy C-4 flange, Hastelloy C-4 ring, Hastelloy C-4 welded pipe, Hastelloy C-4 steel strip, Hastelloy C-4 straight bar, Hastelloy C-4 welding wire and its supporting welding materials, Hastelloy C-4 round cake, Hastelloy C-4 flat steel, Hastelloy C-4 hexagonal bar and Hastelloy C-4 large.
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Hastelloy B-2 (UNS N 10665), Ni-Mo alloy.
Overview of characteristics and application fields of Hastelloy B-2 alloy;
Nickel-molybdenum alloy Hastelloy B-2 has very low carbon and silicon content, which reduces the precipitation of carbon and other impurity phases in welding heat affected zone, so its weld has sufficient corrosion resistance. Hastelloy B-2 has good corrosion resistance in reducing media, such as hydrochloric acid solutions with different temperatures and concentrations. It also has good corrosion resistance in medium concentration sulfuric acid solution (or containing a certain amount of chloride ion). It can also be used in acetic acid and phosphoric acid environment. Only when the alloy material is in suitable metallographic state and pure crystal structure can it have the best corrosion resistance. Widely used in chemistry, petrochemical industry, energy manufacturing, pollution control and other fields, especially in sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid and other industries.
Similar brands of Hastelloy B-2:
NS322 (China), NiMo28 (France), W NR. 2.46 17 (Germany), 00Ni70Mo28, N 10665.
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Metallographic structure of Hastelloy B-2;
Hastelloy B-2 has a face-centered cubic lattice structure. By controlling the contents of iron and chromium to a minimum, the processing brittleness is reduced, and the precipitation of Ni4Mo phase at 700-870℃ is prevented.
Technological properties and requirements of Hastelloy B-2;
1, try to quickly heat to the required temperature. The hot working temperature range is 1 160℃ ~ 900℃.
2. The average grain size of the alloy is closely related to the deformation degree of forgings and the final forging temperature.
3. The adhesion of oxide, oxidation color and welding slag around the weld on the alloy surface is stronger than that of stainless steel, so it is recommended to use fine abrasive belt or fine grinding wheel for polishing.
This alloy should be machined after annealing. Because of the high work-hardening rate of materials, it is suggested to use lower cutting speed and re-feeding than low-alloy standard austenitic stainless steel to cut into the cold-worked hardened surface layer.
Main specifications of Hastelloy B-2:
Hastelloy B-2? Seamless tube, Hastelloy B-2? Steel plate, Hastelloy B-2? Round steel, Hastelloy B-2? Hastelloy B-2 forgings? Frank, Hastelloy B-2? Ring, Hastelloy B-2? Hastelloy B-2 welded pipe? Steel strip, Hastelloy B-2? Straight bar, Hastelloy B-2? Welding wire and auxiliary welding material, Hastelloy B-2? Round cake, Hastelloy B-2? Flat steel, Hastelloy B-2? Hexagon bar, Hastelloy B-2? Large and small Hastelloy B-2? Elbow, Hastelloy B-2? Tee, Hastelloy B-2? Workpiece, Hastelloy B-2? Bolts and nuts, Hastelloy B-2? Fasteners, etc.
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Summary of Hastelloy B-3 Ni-Mo alloy;
1.B-3 alloy is a new member of Ni-Mo alloy family, which has excellent corrosion resistance to hydrochloric acid at any temperature and concentration. At the same time, it also has good corrosion resistance to non-oxidizing media such as sulfuric acid, acetic acid, formic acid and phosphoric acid.
2. Due to the adjustment of its chemical composition, its thermal stability has been greatly improved compared with the original B-2 alloy. B-3 alloy has high resistance to pitting corrosion, stress corrosion, knife-edge corrosion and welding heat affected zone corrosion.
Corresponding brand:
Hastelloy? What about B-3? UNS？ N 10675, W No.2.4600, NS3203
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Hastelloy? Metallographic structure of B-3
Hastelloy? B-3 has a face-centered cubic lattice structure. The contents of Fe and Cr in the alloy are kept to a minimum, which prevents the precipitation of Ni4Mo phase at 700-800℃, thus reducing the risk of processing embrittlement. ?
Hastelloy? B-3？ Characteristics of
Excellent plasticity can still be maintained when exposed to medium temperature in an instant; Excellent resistance to pitting corrosion and stress corrosion cracking; Excellent knife edge corrosion resistance and heat affected zone corrosion resistance; Excellent resistance to acetic acid, acetic acid, phosphoric acid and other non-oxidizing acids; Excellent hydrochloric acid corrosion resistance at various concentrations and temperatures; ?
Hastelloy? B-3？ Application fields include:
B-3 alloy can be used in all previous applications of B-2 alloy. B-3, like B-2 alloy, is not recommended to be used in the presence of iron salts and copper salts, because these salts will quickly cause corrosion damage. When hydrochloric acid comes into contact with iron and copper, it will react with it to form trivalent iron salt and divalent copper salt.
Hastelloy? B-3 main specifications:
Hastelloy? B-3 seamless pipe, Hastelloy? B-3 steel plate, Hastelloy? B-3 round steel, Hastelloy? B-3 forgings, Hastelloy? B-3 flange, Hastelloy? B-3 ring, Hastelloy? B-3 welded pipe, Hastelloy? B-3 steel strip, Hastelloy? B-3 straight line, Hastelloy? B-3 welding wire and supporting welding material, Hastelloy? B-3 round cake, Hastelloy? B-3 flat steel and Hastelloy? B-3 hexagonal alloy, Hastelloy? B-3 big head, Hastelloy? B-3 elbow, Hastelloy? B-3 tee, Hastelloy? B-3 plus workpiece, Hastelloy? B-3 bolts and nuts, Hastelloy? B-3 fasteners, etc.
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Hastelloy G-30/ UNS N06030?
Corresponding brand: W.NR 2.4603? N06030？ AWS 056？ NS3404？
Applicable standard: ASTM B619 nacemr0175/ISO15156-3.
G-30 is a high nickel-based alloy, which shows better corrosion resistance than most other nickel-based and iron-based alloys in the complex environment of phosphoric acid and many highly oxidizing acids (such as nitric acid, hydrofluoric acid and sulfuric acid).
Application fields include:
Nuclear fuel reprocessing
nuclear waste disposal
Acid leaching treatment
petrochemical processing
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Main specifications of Hastelloy G-30:
Hastelloy G-30 seamless pipe, Hastelloy G-30 steel plate, Hastelloy G-30 round steel, Hastelloy G-30 forging, Hastelloy G-30 flange, Hastelloy G-30 ring, Hastelloy G-30 welded pipe, Hastelloy G-30 steel belt, Hastelloy G-30 straight rod, Hastelloy G-30 welding wire and its supporting welding materials.
Overview of HastelloyX:
HastelloyX is a Ni-Cr-Mo alloy with cobalt and tungsten added. HastelloyX alloy has excellent oxidation resistance at high temperature up to 1200℃, and can also be used in neutral and reducing atmosphere. At the same time, HastelloyX alloy can resist carbonization and nitriding atmosphere.
HastelloyX has the following characteristics
Excellent oxidation resistance, up to 1200℃
Low high temperature strength.
Good formability and weldability
Good stress corrosion cracking resistance.
HastelloyX application field
HastelloyX is widely used in various high-temperature environments because of its corrosion resistance and excellent high-temperature strength in various atmospheres.
Typical application fields:
● Industrial and aviation steam turbines (combustion chamber, rectifier, structural cover)
● Industrial furnace parts, support rollers, grid plates, aluminum strips and radiant tubes.
● Spiral pipe in petrochemical furnace
● High temperature gas-cooled nuclear reactor
HastelloyX similar brand
GH3536, GH536 (China), NC22FeD (France), .2.4665, NiCr22Fe 18Mo (Germany), HastelloyX, UNS N06002 (USA), nicr21Fe18mo.
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Physical properties of Hastelloy corrosion-resistant nickel-base alloy
Hastelloy x density? ρ = 8.3g/cm3
The melting temperature range of Hastelloy X is 1260 ~ 1355℃.
Hastelloy x welding
HastelloyX can be welded by various welding processes, such as tungsten inert gas welding, plasma arc welding, manual sub-arc welding, metal inert gas welding and metal inert gas welding. Pulse arc welding is preferred.
Before welding, the material should be in a solid solution state, and the scale, oil stain and various traces should be removed. The width of about 25mm on both sides of the weld should be polished to a bright metal surface.
With low heat input, the interlayer temperature shall not exceed 100℃.
No heat treatment is required before and after welding.
Hastelloy X main specifications:
Hastelloy X seamless pipe, Hastelloy X steel plate, Hastelloy X round steel, Hastelloy X forging, Hastelloy X flange, Hastelloy X ring, Hastelloy X welded pipe, Hastelloy X steel strip, Hastelloy X straight bar, Hastelloy X welding wire and supporting welding materials, Hastelloy X round cake, Hastelloy X flat steel, Hastelloy X hexagonal bar, Hastelloy X head, Hastelloy X elbow, Hastelloy X tee, Hastelloy X machined parts, Hastelloy X bolts and nuts, Hastelloy X.
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