Hastelloy B-2 Springs

Hastelloy B-2 has significant resistance to reducing environments like hydrogen chloride gas, and sulfuric, acetic and phosphoric acids, making Hastelloy B-2 springs an option for mechanical components in reducing environments. The presence of Molybdenum provides significant corrosion resistance to reducing environments. Alloy B-2 provides resistance to pure sulfuric acid and a number of non-oxidizing acids.

Technical Specification Hastelloy B-2
Nominal Composition

Ni: 8.0 – 10.0

Cr: 17.0 – 19.0


0.33 lb./in3

Modulus of Elasticity (E)

31.4 x 103 ksi

Modulus of Rigidity (G)

10196 ksi

Coefficient of Expansion

6.0 µin/in.-°F (68°F)

Electrical Resistivity

825 µΩ.cm

Thermal Conductivity

85 Btu/(hr/ft2/in/°F)

Min Size

0.005 in (0.130 mm)

Max Temp

260oC (500oF)

Uses of Hastelloy B-2 Springs

Due to the presence of molybdenum, it can be used in mechanical components in reducing environments.