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Hastelloy™ B Material Property Data Sheet

Do you need custom fasteners created with Hastelloy™ B? Since our inception, Vegas Fastener Manufacturing has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.

Below are the technical specifications of the Hastelloy™ B Bar Stock we have available to meet your needs.

Component    Wt. % Component    Wt. %
Carbona .05%   Nickel Balance*  
Molybdenum 26.0-30.0%   Iron 4.0-6.0%  
Chromium 1.0%   Silicon 1.00%  
Cobalt 2.50% max   Manganese 1.00% max  
Phosphorus 0.04% max   Sulfur 0.03% max  
Vanadium 0.2-0.4% max    

Physical PropertiesMetric EnglishComments
Density 9217 kg/m3 0.3333 lb/in³  
Mean Coefficient of Thermal Expansion 5.7 microin./in.-°F 10.3 X 10(-6)m/m-K 

Mechanical Properties
Thermal Conductivity 77 Btu-in/ft²-hr-°F 11.1 W/m-K  
Thermal Diffusivity 0.089 Btu/lb-°F 3.2 x 10(-6)m²/s  
Specific Heat 0.005 in²/sec 373 J/kg-K  
Average Dynamic Modulus of Elasticity
psi x 10(6) (MPa)
31.4 (217,000) Heat-treated at 1950 °F (1066 ° C)
Tensile Strength 138.5 Ksi955 MPa Heat treated
at 1950 °F
(1066 °C)
rapid quench
Elongation at Break53 %  Elongation in 2 in (50 mm) or 4D min, %
Rockwell HardnessC-22