ASTM A217 1984 Edition, July 27, 1984
Standard Specification for STEEL CASTINGS, MARTENSITIC STAINLESS AND ALLOY, FOR PRESSURE CONTAINING PARTS, SUITABLE FOR HIGH· TEMPERATURE SERVICE
Includes all amendments and changes through Change/Amendment , July 27, 1984
Additional Comments: W/D S/S BY ASTM A217/A217M
Published By:ASTM International (ASTM)
This specification2 covers martensitic stainless steel and alloy steel castings for valves, flanges, fittings, and other pressure-containing parts (Note I) intended prim:arily for high-temperature and corrosive service (Note 2).
One grade of martensitic stainless steel and seven grades of ferritic alloy steel are covered. Selection will depend on design and service conditions, mechanical properties, and the high-temperature and corrosion-resistant characteristics (Note 3).
NOTE 1-Carbon steel castings for pressure-'containing parts are covered by Specification A 216.
NOTE 2-The grades covered by this specification represent materials which are generally suitable for assembly with other castings or wrought steel parts by fusion welding. It is not intended to imply that these grades possess equal degrees of weldabiIity; therefore, it is the responsibility of the purchaser to establish for himself a suitable welding technique. Since these grades possess varying degrees of suitability for high-temperature and corrosion-resistant service, it is also the responsibility of the purchaser to determine which grade shall be furnished, due consideration being given to the requirements of the , applicable construction codes. .,
NOTE 3-The committee formulating this speci- ,fication has included eight grades of materials which are considered to represent basic types of ferritic alloy steels suitable for valves, flanges, fittings, and other pressure-containing parts. Additional alloy steels which may better fulfill certain types of service will be considered for inclusion in this specification by the committee as the need becomes apparent.
The values stated in inch-pound units are to be regarded as the standard.
2For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-217 in Section II of that code.