What is the composition of API 5L X56 Line Pipe Steel?

Published composition ranges are not available for API 5L X56 Line Pipe 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 API 5L X56 Line Pipe Steel?

The governing standards for API 5L X56 Line Pipe Steel include API 5L. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is API 5L X56 Line Pipe 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 API 5L X56 Line Pipe 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.

What UNS number is assigned to API 5L X56 Line Pipe Steel?

No UNS number is assigned; identify by the AMS or ASTM grade on the certificate.

API 5L X56 Line Pipe Steel

low_alloy_steel

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Quick answer

API 5L X56 Line Pipe Steel is a low alloy steel specified by API 5L. Typical composition: .

A high-strength low-alloy (HSLA) steel used for line pipe in oil and gas transmission, offering good weldability and toughness, specified by its minimum yield strength of 56 ksi.

Applicable Standards

API 5L

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