Standard: ASTM A1090/A1090M
STANDARD SPECIFICATION FOR FORGED RINGS AND HOLLOWS PRODUCED FROM STEELS WITH ATMOSPHERIC CORROSION RESISTANCE
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This specification covers high-strength, low-alloy steel ring and hollow forgings intended primarily for use as base plates in welded tubular structures. However use of this specification is not restricted to such applications and it may be used in other applications for which the attributes of the materials, as defined by this specification, are appropriate. 1.2 The atmospheric corrosion resistance of these steels in most environments is substantially better than that of carbon structural steel with or without copper addition (see Note 1). When exposed to the atmosphere, this steel is suitable for many applications in the bare (unpainted) condition.
NOTE 1—See Guide G101 for methods of estimating the atmospheric corrosion resistance of low-alloy steels.
The thickness of forgings is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the thickness of forgings furnished under this specification to a range of 2 to 6 in. [51 to 152 mm].
NOTE 2—When the steel is to be welded, a welding procedure suitable for the grade of steel and intended use or service should be used. See Appendix X3 of Specification A6/A6M for information on weldability.
The text of this specification contains notes, footnotes, or both that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.
Supplementary requirements are available but shall apply only when specified by the purchaser at the time of ordering. 1.6 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.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
|Document Number:||astm a1090/a1090m|
|Change Type:||NEW ADDITION|
|Most Recent Revision:||YES|