What is the composition of ASTM A48 Class 20 Gray Cast Iron?

Published composition ranges are not available for ASTM A48 Class 20 Gray Cast Iron 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 ASTM A48 Class 20 Gray Cast Iron?

The governing standards for ASTM A48 Class 20 Gray Cast Iron include ASTM A48. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is ASTM A48 Class 20 Gray Cast Iron used for?

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

How do I verify a mill certificate for ASTM A48 Class 20 Gray Cast Iron?

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 ASTM A48 Class 20 Gray Cast Iron?

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

ASTM A48 Class 20 Gray Cast Iron

special

Validate composition

Quick answer

ASTM A48 Class 20 Gray Cast Iron is a special specified by ASTM A48. Typical composition: .

A common grade of gray cast iron, characterized by its graphite flakes which provide excellent machinability and damping capacity. Class 20 indicates a minimum tensile strength of 20,000 psi (140 MPa).

Applicable Standards

ASTM A48

Frequently asked questions

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