What is the composition of 904L Stainless Steel?

Published composition ranges are not available for 904L Stainless Steel in this record. The source entry did not carry a verified composition.

What standards cover 904L Stainless Steel?

The governing standards for 904L Stainless Steel include ASTM A240, EN 1.4539, UNS N08904. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is 904L Stainless Steel used for?

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

How do I verify a mill certificate for 904L Stainless 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.

904L Stainless Steel

UNS N08904 stainless

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Quick answer

904L Stainless Steel is a stainless specified by ASTM A240, EN 1.4539, UNS N08904. Typical composition: .

904L is a high-alloy austenitic stainless steel known for its excellent corrosion resistance, particularly in sulfuric acid and other aggressive environments. Its high nickel and molybdenum content, along with copper, provides superior resistance to pitting, crevice corrosion, and stress corrosion cracking.

Applicable Standards

ASTM A240
EN 1.4539
UNS N08904

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