What is the composition of 654 SMO Super Austenitic Stainless Steel?

Published composition ranges are not available for 654 SMO Super Austenitic Stainless Steel in this record. The source entry did not carry a verified composition.

What standards cover 654 SMO Super Austenitic Stainless Steel?

The governing standards for 654 SMO Super Austenitic Stainless Steel include ASTM A240, EN 1.4652, UNS S32654. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is 654 SMO Super Austenitic 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 654 SMO Super Austenitic 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.

654 SMO Super Austenitic Stainless Steel

UNS S32654 stainless

Validate composition

Quick answer

654 SMO Super Austenitic Stainless Steel is a stainless specified by ASTM A240, EN 1.4652, UNS S32654. Typical composition: .

A high-alloy super austenitic stainless steel known for its exceptional corrosion resistance, particularly in aggressive chloride-containing environments. Its high content of chromium, nickel, molybdenum, and nitrogen provides superior pitting and crevice corrosion resistance.

Applicable Standards

ASTM A240
EN 1.4652
UNS S32654

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