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Model: API SPEC 20A

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Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in

the Petroleum and Natural Gas Industry, First Edition

standard by American Petroleum Institute, 03/01/2012

Product Details

Published: 03/01/2012
Number of Pages: 40
File Size: 1 file , 720 KB
Product Code(s): G20A01, G20A01, G20A01

Full Description

This standard specifies requirements for the design, foundry qualification, production,

marking and documentation of carbon steel, alloy steel, stainless steel and nickel base

alloy castings used in the petroleum and natural gas industries when referenced by an

applicable API equipment standard or otherwise specified as a requirement for


This standard applies to castings used in the manufacture of pressure containing,

pressure controlling and primary load bearing components. Castings manufactured in

accordance with this API Standard may be produced using any industry standard casting


This standard establishes requirements for four casting specification levels (CSL).

These four CSL designations define different levels of cast product technical, quality

and qualification requirements.

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