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Hastelloy B-3

Hastelloy B-3

Hastelloy B-3 is a superior nickel-molybdenum alloy that offers exceptional resistance to pitting, corrosion, stress-corrosion cracking, knife-line attack, and heat-affected zone attack. Additionally, its improved thermal stability minimizes fabrication-related issues that may occur with B-2 alloy components.

Equivalent grades

• Hastelloy B-3
• UNS N10675
• W.Nr. 2.4600

Chemical Composition Reference


Physical Property Reference

• Density: 9.22 g/cm³

• Tensile Strength: 860 MPa

• Yield Strength: 420 MPa

• Elongation: 57%

Stock & Dimensions

Our warehouse has a large number of stock to provide you with a variety of products in different sizes, and can also customize the size according to your needs.
• Bar: 0.5~600mm Diameter
• Coil: 0.5~150mm Thick
• Plate: 0.5~200mm Thick
• Pipe: 6~630mm External Diameter; 0.5~40mm Wall Tick
• Available in specific sizes

Product Forms

We provide you with a variety of product forms, including but not limited to:
• Bar/Rod
• Pipe/Tube
• Coil/Strip
• Plate/Sheet/Circle
• Wire
• Fitting (Flange, Elbow, Tee...)
• Customize

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Hastelloy B-3

Essential details
Hastelloy B-3 is a nickel- molybdenum alloy with excellent resistance to pitting, corrosion and stress-corrosion cracking, plus thermal stability superior to that of alloy B-2. This alloy has also great resistance to knife-line and heat-affected zone attack. The improved thermal stability of B-3 alloy minimizes the problems associated with fabrication of B-2 alloy components. This is due to the reduced tendency to precipitate deleterious inter-metallic phases in B-3 alloy, thereby, affording it greater ductility than B-2 alloy during and following various thermal cycling conditions.


- Construction

- Bridges

- Petrochemical Industry

- Ship Building

- Engineering

- General Structural Purposes

- Offshore and Onshore Services

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