Two standard specifications for hot isostatically-pressed powder metal components were developed by Subcommittee A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.

The first, A 988, Standard Specification for Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service, covers 16 grades of martensitic, austenitic, and austenitic-ferritic stainless steel flanges, fittings, valves and parts for high temperature service. The second,
A 989, Standard Specification for Isostatically-Pressed Alloy Steel Flanges, Fittings, Valves, and Parts for High Temperature Service, covers five grades of alloy steel flanges, fittings, valves and parts for high temperature service.

“The standards were developed in response to the growth of this new technology for the production of fully dense powder metal parts and components,” says Kenneth Pinnow, Ph.D., an applied research specialist and metallurgical consultant, retired from Crucible Materials Corporation, Pittsburgh, Pa. Pinnow chaired subcommittee task groups of metallurgists, engineers, and end-users who developed the specifications under Committee A01 on Steel, Stainless Steel and Related Alloys.

Technical questions may be directed to Robert Kearney, Crucible Compaction Metals Division, Crucible Materials Corporation, 1001 Robb Hill Road, Oakdale, PA 15071 (888/923-2670). Committee A01 meets Nov. 13-16 in Orlando, Fla. For meeting or membership details, contact director George Luciw, ASTM (610/832-9710), or the Committee A01 home page. //

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