What is the composition of AISI 1040 Carbon Steel?

Published composition ranges are not available for AISI 1040 Carbon Steel 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 AISI 1040 Carbon Steel?

The governing standards for AISI 1040 Carbon Steel include AISI 1040, SAE J403, UNS G10400. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is AISI 1040 Carbon 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 AISI 1040 Carbon 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.

AISI 1040 Carbon Steel

UNS G10400 low_alloy_steel

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Quick answer

AISI 1040 Carbon Steel is a low alloy steel specified by AISI 1040, SAE J403, UNS G10400. Typical composition: .

A medium carbon steel offering good strength and hardness, but with lower ductility and weldability compared to lower carbon grades. It is commonly used for parts requiring moderate strength and wear resistance.

Applicable Standards

AISI 1040
SAE J403
UNS G10400

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