What is the composition of ASME SA-533 Type B Pressure Vessel Steel?

Published composition ranges are not available for ASME SA-533 Type B Pressure Vessel 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 ASME SA-533 Type B Pressure Vessel Steel?

The governing standards for ASME SA-533 Type B Pressure Vessel Steel include ASME SA-533, ASTM A533. Mill certificates typically call out the most specific AMS or ASTM number applicable to the product form.

What is ASME SA-533 Type B Pressure Vessel 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 ASME SA-533 Type B Pressure Vessel 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.

ASME SA-533 Type B Pressure Vessel Steel

UNS K12439 low_alloy_steel

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Quick answer

ASME SA-533 Type B Pressure Vessel Steel is a low alloy steel specified by ASME SA-533, ASTM A533. Typical composition: .

A quenched and tempered manganese-molybdenum-nickel alloy steel plate, SA-533 Type B is primarily used for welded pressure vessels and nuclear reactor components requiring high strength and toughness.

Applicable Standards

ASME SA-533
ASTM A533

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