ASTM F1941M

Full Name

ASTM F1941M – Standard Specification for Electrodeposited Coatings on Threaded Fasteners [Metric]

Scope

This specification covers application, performance and dimensional requirements for electrodeposited coatings on threaded fasteners with metric screw threads.

It specifies coating thickness, supplementary hexavalent chromate or trivalent chromite finishes, corrosion resistance, precautions for managing the risk of hydrogen embrittlement and hydrogen embrittlement relief for high-strength and surface-hardened fasteners.

It also highlights the differences between barrel and rack plating and makes recommendations as to the applicability of each process.

Keywords

chromate finish; electrodeposited coating; fasteners; hydrogen embrittlement relief; hydrogen embrittlement testing; surface treatment

Resources

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