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UNS R30016 - Alloy 6B

UNS R30016 - Alloy 6B

UNS R30016/Alloy 6B is a high-quality wrought base-cobalt alloy, specifically designed for use in extreme conditions of wear, corrosion, and high temperature. With proven success in various applications, this alloy is ideal for shaft sleeves, bushings, valve parts, and more. Trust UNS R30016 for exceptional wear resistance and durability.

Equivalent grades

• UNS-R30016
• Alloy 6B
• AMS 5894
• Stellite 6B
• Haynes 6B
• Co-Cr-W
• PWA 1196
• MCS 1012

Chemical Composition Reference


Physical Property Reference

• Density: 8.39 g/cm³

• Thermal conductivity: 14.8 W/mK

• Tensile Strength: 1000 MPa

• Yield Strength: 621 MPa

• Elongation at break: 12%

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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UNS R30016 - Alloy 6B

Essential details
UNS R30016 - Alloy 6B is a cobalt-based alloy known for its exceptional wear, erosion, and abrasion resistance. Unlike other alloys, the wear resistance of this product is inherent in its chemical composition, not achieved through heat treatment or other hardening methods. Its low coefficient of friction also prevents seizing and galling, making it ideal for applications where lubrication is challenging.


- Half sleeves and half bushings in screw conveyors

- Tile making machines

- Rock crushing rollers

- Cement and steel mill equipment

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