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ASTM A 27/A 27M Document Information:
Title
Standard Specification for Steel Castings, Carbon, for General Application
ASTM International
Publication Date:
Oct 1, 2008
Scope:
This specification covers carbon steel castings for general
applications that require up to 70 ksi (485 MPa) minimum tensile
strength.
NOTE 1—The grades covered by this specification represent
materials that are suitable for assembly with other steel castings
or wrought steel parts by fusion welding. It is not intended to
imply that all these grades possess the same degree of weldability
or that the same welding techniques can be used on all castings. It
is the responsibility of the purchaser to establish for himself a
suitable welding technique.
Several grades and two classes of steel castings are covered, as
indicated below. The grade and class desired shall be specified by
the purchaser.
Grade N-1—Chemical analysis only.
Grade N-2—Heat-treated but not mechanically tested.
Grade U-60-30 [415-205]—Mechanically tested but not
heat-treated.
Grades 60-30 [415-205], 65-35 [450-240], 70-36
[485-250], and 70-40 [485-275]—Heat-treated and
mechanically tested.
Class 1 and Class 2 steel castings shall be specified in
accordance with 9.2.
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.
*A Summary of Changes section appears at the end of this
standard.
Keywords:
- castings
- general application
- steel
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