What is the composition of Gray Iron Class 40?

Published composition ranges are not available for Gray Iron Class 40 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 Gray Iron Class 40?

The governing standards for Gray Iron Class 40 include ASTM A48. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is Gray Iron Class 40 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 Gray Iron Class 40?

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 Gray Iron Class 40?

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

Gray Iron Class 40

special

Validate composition

Quick answer

Gray Iron Class 40 is a special specified by ASTM A48. Typical composition: .

Gray Iron Class 40 is a type of cast iron characterized by its graphite flakes, which provide excellent damping capacity and machinability. It is specified by its minimum tensile strength of 40,000 psi (275 MPa).

Applicable Standards

ASTM A48

Frequently asked questions

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