What is the composition of P21 Tool Steel?

Published composition ranges are not available for P21 Tool Steel in this record. PARTIAL - parsed from a truncated 500-char source excerpt; the element set is INCOMPLETE and must NOT be used for validation, specification or purchasing

What standards cover P21 Tool Steel?

The governing standards for P21 Tool Steel include Common industry designation for a nickel-modified P20. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is P21 Tool Steel used for?

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

How do I verify a mill certificate for P21 Tool Steel?

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.

What UNS number is assigned to P21 Tool Steel?

No UNS number is assigned; identify by the AMS or ASTM grade on the certificate.

P21 Tool Steel

tool_steel

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Quick answer

P21 Tool Steel is a tool steel specified by Common industry designation for a nickel-modified P20. Typical composition: .

P21 is a pre-hardened, nickel-modified tool steel, often considered an upgrade to P20, offering improved toughness, polishability, and through-hardening capabilities. It is primarily used for plastic injection molds and die casting dies.

Applicable Standards

Common industry designation for a nickel-modified P20

Frequently asked questions

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