What is the composition of JIS SUS440C Martensitic Stainless Steel?

Published composition ranges are not available for JIS SUS440C Martensitic Stainless Steel in this record. The source entry did not carry a verified composition.

What standards cover JIS SUS440C Martensitic Stainless Steel?

The governing standards for JIS SUS440C Martensitic Stainless Steel include JIS G 4303, JIS G 4304. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is JIS SUS440C Martensitic 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 JIS SUS440C Martensitic 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.

JIS SUS440C Martensitic Stainless Steel

UNS S44004 stainless

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Quick answer

JIS SUS440C Martensitic Stainless Steel is a stainless specified by JIS G 4303, JIS G 4304. Typical composition: .

JIS SUS440C is a high-carbon martensitic stainless steel known for its excellent hardness, wear resistance, and moderate corrosion resistance. It is typically used in hardened and tempered conditions for applications requiring high strength and abrasion resistance.

Applicable Standards

JIS G 4303
JIS G 4304

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