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Hastelloy B2 UNS N10665/W.Nr.2.4617

Short Description:

Hastelloy B2 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 B2 provides resistance to pure sulfuric acid and a number of non-oxidizing acids.


Product Detail

Product Tags

Chemical Composition

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

Mechanical Properties

Aolly Status

Tensile  strength

Rm Mpa

Min

Yield strength

R P 0. 2 Mpa

Min

Elongation

A 5 %

Min

Solution

745

325

40

Physical Properties

Density g/cm3

Melting Point 

9.2

1330~1380

Standard

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

Haynes Hastelloy Suppliers

● 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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