
Hastelloy B-2 is covered by the following specifications:
UNS N10665
Plate, Sheet, Strip: ASTM B333, ASME SB333,
Bar: ASTM B 335, ASME SB335, (DUAL CERTIFIED TO ASTM B564, ASME
SB564 ON 3-1/2 DIA. AND UP)
Welded Pipe: ASTM B619, ASME SB619, CLASS I or II, (ABOVE 8 SCH 40) ASTM
B775, ASME SB775,
Seamless Pipe: ASTM B622, ASME SB622
Product Introduction:
Product features:
1. Control the minimum content of iron and chromium elements to prevent the generation of B-phase NI4MO.
2. Excellent corrosion resistance to reducing environment.
3. Excellent resistance to moderate concentration sulfuric acid and many non-oxidizing acid corrosion.
4. Good resistance to chloride ion reduction stress corrosion cracking (SCC).
5. Excellent resistance to various organic acid corrosion.
Chemical composition:
Grade | % | Ni | Mo | Fe | Cr | Co | C | Mn | V | Si | P | S |
Hastelloy B |
MIN | Bal. | 26 | 4 | 0.2 | |||||||
MAX | 30 | 6 | 1.0 | 2.5 | 0.05 | 1.0 | 0.4 | 1.0 | 0.04 | 0.03 | ||
Hastelloy B-2 |
MIN | Bal. | 26 | 2 | ||||||||
MAX | 30 | 7 | 1.0 | 1.0 | 0.02 | 1.0 | 0.1 | 0.04 | 0.03 |
Mechanical property:
Density | 9.24g/cm³ |
Melting range | 1330-1380℃ |
Tensile strength | 690Rm N/mm² |
Yield strength | 310RP0.2N/mm² |
Rate of elongation | 40A5% |
Executive standard:
Product | ASTM Standard | ASME Standard | AME Standard | ||||||
Sheet. Sheet. Strip | B127 | SB127 | 4544 | ||||||
Seamless pipe | B163.B165 | SB163.B165 | 4574 | ||||||
Welded pipe | B725 | SB725 | |||||||
Bar. Cake | B865 | SB865 | 4675.4676 | ||||||
forging | B564 | SB564 | 4675 | ||||||
Wire rod | 4730.4731 |
Applications
Superior resistance to hydrochloric acid, aluminum chloride catalysts and other strongly reducing chemicals. Excellent high-temperature strength in inert and vacuum atmospheres.
Hastelloy B2 is a nickel-molybdenum alloy particularly suited for equipment handling reducing chemical environments .
Applications in the chemical process industry involving sulfuric, phosphoric, hydrochloric and acetic acid. Temperature uses vary from ambient temperature to 1500°F depending on the environments
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