1、NOTICE OF INACTIVATION I FOR NEW DESIGN I INCH-POUND I MIL-S-81591 NOTICE 1 23 February 1993 MILITARY SPECIFICATION STEEL, INVESTMENT CASTINGS CARBON AND CORROSION RESISTING MIL-S-81591 is inactive for new design. New designs should use the following non-government standards as shown below. The non-
2、government standards are listed for information only and are suggested alternatives since some of the chemical compositions of the non-government standards may not exactly match those of MIL-S-81591. It is therefore up to the design activity to determine the suitability of any alloy to be used in ne
3、w designs. Design activities that desire any additional testing requirements not contained in the replacement non-government standards should specify those requirements on the casting drawing, purchase order, or contract. L (Application for MI L-S-8.1591 I Non-uovernmen t Composi tion Staniards IC-1
4、020 ASTM A732, Grade 1A IC- 1030 ASTM A732, Grade ZA, 29 IC- 1040 ASTM A732. Grade 3A. 30 IC-1050 ASTM A732 Grade 4A, 4Q I C- 302 ASTM A743, Grade CF-20 IC-303 IC-304 IC-3O4L IC-310 IC-31 6 IC-321 AMS 5341 AMS 5358 AMS 5370 AMS 5366 AMS 5360 No replacement - IC-41 6 AMS 5349 IC-420 ASTM A743, Grade
5、CA-40 IC-431 AMS 5353 I C-440A No reDlacement I C-440C AMS 5352 IC-1 7-4 AMS 5355 Sol ln treated I AMS 5344 Sol ln treated and (180 ksi) aged copies of SAE Aerospace Mater be addressed to the Society of Automotive- Engineers Warrendale, PA 15096-0001) ia1 Specifications should , 400 Commonwealth Dri
6、ve, (Application for copies of ASTM standards should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 191 03-1 187) Preparing Activity: Navy - AS ( Project MECA-0497) AMSC NIA AREA MECA DISTRIBUTION STATEMENT A. Approved for public release; distributuion is unlimited Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
