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ASTM A 217/A 217M Document Information:
Title
Standard Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service
ASTM International
Publication Date:
Nov 1, 2008
Scope:
This specification2 covers martensitic stainless
steel and alloy steel castings for valves, flanges, fittings, and
other pressure-containing parts (Note 1) intended primarily for
high-temperature and corrosive service (Note 2).
One grade of martensitic stainless steel and nine 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/A 216M. Low alloy
quench-and-tempered grades equivalent to Specification A 217/A 217M
grades may be found in both Specifications A 352/A 352M and A 487/A
487M.
NOTE 2—The grades covered by this specification represent
materials that 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
weldability; 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 specification has included
nine grades of materials that are considered to represent basic
types of ferritic alloy steels suitable for valves, flanges,
fittings, and other pressurecontaining parts. Additional alloy
steels that 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 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.
2 For ASME Boiler and Pressure Vessel Code
applications, see related Specification SA-217/SA 217M in Section
II of that code.
*A Summary of Changes section appears at the end of this
standard.
Keywords:
- alloy steel
- high temperature
- martensitic stainless steel
- pressure containing
- steel castings
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