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Hastelloy B2 Pipe

Hastelloy B2 Pipe

 

Common Trade Names:
Hastelloy B2, Alloy B2; Nimofer 6928

 

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.

 

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

 

 

Chemical Composition, %

Ni
Mo
Fe
C
Co
Cr
Mn
Si
Balance
26.0-30.0
2.0 max
.02 max
1.0 max
1.0 max
1.0 max
.10 max
P
S
.040 max
.030 max

 

Standards:

Welded Pipe: ASTM B619, ASME SB619, CLASS I or II, (ABOVE 8" SCH 40)  ASTM
B775, ASME SB775,

 

Seamless Pipe: ASTM B622, ASME SB622

 

Applications:

Hastelloy B2 is suitable for most chemical process applications in the as-welded condition. Well suited for equipment handling hydrochloric acid in all concentrations and temperatures. Resistant to hydrogen chloride gas and sulfuric, acetic, and phosphoric acids. Principal high-temperature uses are those in which a low coefficient of thermal expansion is required.

 

 

Date:2015/9/25
Last:Inconel 600 Seamless Tube
Next:310S Stainless Steel Coil

 

 

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