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Alloy | element | C | Si | Mn | S | P | Ni | Cr | Mo | Fe | Co |
Alloy B2 | Min | 26.0 | |||||||||
Max | 0.02 | 0.10 | 1.00 | 0.03 | 0.04 | Balance | 1.0 | 30.0 | 2.0 | 1.0 |
Aolly Status | Tensile strength Rm Mpa Min | Yield strength R P 0. 2 Mpa Min | Elongation A 5 % Min |
Solution | 745 | 325 | 40 |
Density g/cm3 | Melting Point ℃ |
9.2 | 1330~1380 |
Hastelloy B is a solid solution strengthened, nickel-molybdenum alloy, with significant resistance to reducing environments like hydrogen chloride gas, and sulfuric, acetic and phosphoric acids. Molybdenum is the primary alloying element which provides significant corrosion resistance to reducing environments. This nickel steel alloy can be used in the as-welded condition because it resists the formation of grain-boundary carbide precipitates in the weld heat-affected zone.
This nickel alloy provides excellent resistance to hydrochloric acid at all concentrations and temperatures. In additions, Hastelloy B2 has excellent resistance to pitting, stress corrosion cracking and to knife-line and heat-affected zone attack. Alloy B provides resistance to pure sulfuric acid and a number of non-oxidizing acids.
Rod, Bar, Wire and Forging Stock - ASTM B 335(Rod, Bar), ASTM B 564(Forging),ASTM B 366(Fitting)
Plate, Sheet and Strip - ASTM B 333
Pipe and Tube - ASTM B 622(Seamless ) ASTM B 619/B626(Welded Tube)
Characteristics of Hastelloy B2
● Great resistance to stress corrosion cracking and pitting
● Significant resistance to reducing conditions like hydrogen chloride, sulfuric,acetic and phosphoric acids
● Resistance to hydrochloric acid at all concentrations and temperatures
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