Process Specification for the Heat Treatment of Steel Alloys对于钢合金的热处理工艺规范.doc

PRC-2001 Rev. F PAGE Verify that this is the correct version before use. Page PAGE 1 of 9 Process Specification for the Heat Treatment of Steel Alloys Engineering Directorate Structural Engineering Division October 2006 National Aeronautics and Space Administration Lyndon Houston Process Specification for the Heat Treatment of Steel Alloys Prepared by: Signature on file 10/04/06 Daila Gonzalez, Materials Processes Branch / ES4 Date Prepared by: Signature on file 10/04/06 John D. Figert, Materials Processes Branch / ES4 Date Approved by: Signature on file 10/04/06 Brad S. Files, Chief, Materials Processes Branch / ES4 Date REVISIONS VERSION CHANGES DATE Baseline Original version 5/96 A Expanded sec. 3.0, furnace chart info., tensile requirements 5/27/98 B Changed Training Requirements, Updated to SAE AMS-H-6875A 7/21/99 C Modified Training Requirements, Labeling Tensile Bars Stock 2/24/00 D Included Information on Postweld Stress Relief, Reduced Labeling Tensile Bars Stock Requirements 8/24/00 E Changed sec. 6.0 on aging requirements for A286. Updated document due to reorganization from EM2 to ES4. 6/06/02 F Reviewed for accuracy and updated author. 10/04/06 1.0 SCOPE This process specification establishes the engineering requirements for the heat treatment of steel and stainless steel alloys. 2.0 APPLICABILITY This specification shall be applicable whenever the heat treatment of steel or stainless steel alloys is invoked per section 3.0, “Usage”. 3.0 USAGE The material to be heat treated shall be included in the parts list in the heat treat condition in which the material is to be procured. Availability of product forms and tempers may be obtained from a manufacturing production controller or from an ES4 materials engineer. This process specification shall be called out on the engineering drawing by using an appropriate drawing note. The specific process or combination of heat treat processes shall be no