Hastelloy Specification
Standards: ASTM B575/ASME SB-575, ASTM B574/ASME SB-574, ASTM B622/ASME SB-622, ASTM B619/ASME SB-619, ASTM B366/ASME SB-366, ASTM B564/ASME SB-564
Hastelloy alloy is a general term for the commercial grades of nickel-based corrosion-resistant alloys produced by Hastelloy International. Including nickel molybdenum Hastelloy B-2, nickel chromium molybdenum Hastelloy C-4 and the like.
Hastelloy grades include the following grades:
>>HASTELLOY B-2 nickel-molybdenum alloy with excellent corrosion resistance in a reducing environment HASTELLOY B-3 B-2 upgraded version, excellent corrosion resistance for any temperature and concentration of hydrochloric acid
>>HASTELLOY C-4 has good thermal stability and good toughness and corrosion resistance at 650-1040 degrees Celsius
>>HASTELLOY C-22 has better resistance to uniform corrosion in oxidizing medium than C-4 and C-276, and has excellent local corrosion resistance.
>>HASTELLOY C-276 has good resistance to oxidizing and moderate reducing corrosion, and excellent resistance to stress. Corrosion ability
>>HASTELLOY C-2000 The most comprehensive corrosion-resistant alloy with excellent resistance to uniform corrosion in both oxidizing and reducing environments
>>HASTELLOY G-35 G-30 upgraded product, better corrosion resistance and thermal stability Excellent HASTELLOY G-30 high chromium content nickel-based alloy, excellent performance in phosphoric acid and other strong oxidizing mixed acid medium
>>HASTELLOY X Comprehensive high strength, oxidation resistance and easy processing characteristics Each of the above grades has specific chemical composition, mechanical properties, and has its own strengths. It is not possible to generalize the characteristics of Hastelloy.
Product Features
1 Excellent corrosion resistance for most corrosive media in both oxidizing and reducing atmospheres.
2 Excellent resistance to pitting, crevice corrosion and stress cracking corrosion.
The main purpose
Hastelloy plates are suitable for use in a variety of chemical industries containing oxidizing and reducing media. The higher molybdenum and chromium contents make the alloy resistant to chloride ion corrosion, and the tungsten element further improves the corrosion resistance. At the same time, C-276 Hastelloy tube is one of only a few materials resistant to moisture chlorine, hypochlorite and chlorine dioxide solution. For high concentration chloride solutions such as ferric chloride and copper chloride Significant corrosion resistance.
Applications: heat exchangers, bellows compensators, chemical equipment, flue gas desulfurization, off-market, paper industry, aerospace applications, acidic environments.
