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About This Item
Full Description
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 method.
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.
Document History
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API Spec 20A
Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, Second Edition, Includes Addendum 1 (2018) and Addendum 2 (2020)- Most Recent
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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, Includes Addendum 1 (2013), Addendum 2 (2015), Errata 1, August 2015- Historical Version
Amendments, rulings, supplements, and errata
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API Spec 20A Errata 1
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Errata to Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, First Edition, Includes Addendum 1 (2013), Addendum 2 (2015), Errata 1, August 2015 -
API Spec 20A Addendum 2
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Addendum 2 (includes Addendum 1) to Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, First Edition -
API Spec 20A Addendum 1
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Addendum 1 to Carbon Steel, Alloy Steel, Stainless Steel, and Nickel Base Alloy Castings for Use in the Petroleum and Natural Gas Industry, First Edition