What is the composition of Stellite 21 Cobalt-Chromium-Molybdenum Alloy?

Published composition ranges are not available for Stellite 21 Cobalt-Chromium-Molybdenum Alloy in this record. The source entry did not carry a verified composition.

What standards cover Stellite 21 Cobalt-Chromium-Molybdenum Alloy?

The governing standards for Stellite 21 Cobalt-Chromium-Molybdenum Alloy include ASTM F75, AMS 5385. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

How do I verify a mill certificate for Stellite 21 Cobalt-Chromium-Molybdenum Alloy?

Compare each element value on the certificate against the min/max ranges in the spec table above. Paste the values into the SpecBase validator to get an automated pass/fail check.

Stellite 21 Cobalt-Chromium-Molybdenum Alloy

Q: What is Stellite 21 Cobalt-Chromium-Molybdenum Alloy used for?

This alloy is used in applications demanding the property set described in its family: cobalt.

UNS R30021 cobalt

Validate composition

Quick answer

Stellite 21 Cobalt-Chromium-Molybdenum Alloy is a cobalt specified by ASTM F75, AMS 5385. Typical composition: .

Stellite 21 is a cobalt-chromium-molybdenum alloy known for its excellent wear resistance, corrosion resistance, and high-temperature strength. It is often used in demanding applications requiring resistance to abrasion, erosion, and galling.

Applicable Standards

ASTM F75
AMS 5385

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