What is the composition of ASTM A588 Grade A Weathering Steel?

Published composition ranges are not available for ASTM A588 Grade A Weathering Steel in this record. The source entry did not carry a verified composition.

What standards cover ASTM A588 Grade A Weathering Steel?

The governing standards for ASTM A588 Grade A Weathering Steel include ASTM A588/A588M, UNS K12000. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is ASTM A588 Grade A Weathering Steel used for?

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

How do I verify a mill certificate for ASTM A588 Grade A Weathering 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.

ASTM A588 Grade A Weathering Steel

UNS K12000 low_alloy_steel

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Quick answer

ASTM A588 Grade A Weathering Steel is a low alloy steel specified by ASTM A588/A588M, UNS K12000. Typical composition: .

A high-strength low-alloy structural steel with improved atmospheric corrosion resistance, often referred to by the trademarked name Corten A. It forms a protective rust-like layer when exposed to the elements, eliminating the need for painting.

Applicable Standards

ASTM A588/A588M
UNS K12000

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