B2

Hastelloy B2

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Product Description

Hastelloy B2

Hastelloy B2

•controlled chemistry with a minimum iron and chromium content to retard the formation of ordered -phase Ni4M
•significant corrosion resistance to reducing environment
•excellent resistance to medium-concentrated sulphuric acid and a number of non-oxidizing acids
•good resistance to chloride-induced stress-corrosion cracking (SCC)
•good resistance to a wide range of organic acids.

Density: 9.24
Corrosion resistance

The extremely low carbon and silicon content of Hastelloy B2 Alloy reduces precipitation of carbides and other phases in the heat-affected zone of welds and ensures adequate corrosion resistance even in the welded condition.
Hastelloy B2 exhibits excellent corrosion resistance in aggressive reducing media such as hydrochloric acid in a wide range of temperatures and concentrations, as well as in medium-concentrated sulphuric acid even with limited chloride contamination. It can also be used in acetic and phosphoric acids. Optimum corrosion resistance can be obtained only if the material is in the correct metallurgical condition and exibits a clean structure.

Applications of Hastelloy B2:

Hastelloy B2 Alloy is used in a wide range of applications in the chemical process industry, especially for processes involving
sulphuric, hydrochloric, phosphoric and acetic acid.

Chemical composition

 Ni  Cr  Fe  C  Mn  Si  Mo  Co  P  S
 min(%)  bal.  26.0
 max(%)  1.0  2.0  0.02  1.0  0.1  30.0  1.0  0.04 0.03

Mechanical properties

 Condition  Yield Strength(Mpa)  Tensile Strength(Mpa)  Elongation(%)  Hardness(HB)
 ASTM Min Value  Solution Annealed  350  760  40
 Typical Values at RT  Solution Annealed  411  892  60  185

International Specification Comparison chart

 Material  Round Bar  Plate  Pipe
 Seamless  Welded
 ASTM  UNS
N10665
 B335  B333  B622  B619/B626
 ASME  SB335  SB333  SB622  SB619/SB626
 JIS  NW0665  H4553  H4551  H4552
 DIN  2.4617  17752  17750  17751 17751

Product: Sheet, Coil, Pipe, Bar, Wire and Forgings