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ASTM A487/A487M 2014 Edition, March 1, 2014
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Standard Specification for Steel Castings Suitable for Pressure Service
Additional Comments: ALSO SEE ASTM A487/A487M (R)
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This specification2 covers low-alloy steels and martensitic stainless steels in the normalized and tempered, or quenched and tempered, condition suitable for pressurecontaining parts. The weldability of the classes in this specification varies from readily weldable to weldable only with adequate precautions, and the weldability of each class should be considered prior to assembly by fusion welding.

Selection will depend on design, mechanical, and service conditions. Users should note that hardenability of some of the grades mentioned may restrict the maximum size at which the required mechanical properties are obtained.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

Within the text, the SI units are shown in brackets.

2 For ASME Boiler and Pressure Vessel Code applications see related Specifications SA-487 in Section II of that code.

*A Summary of Changes section appears at the end of this standard