101108_Plating - Licensed to Moog Inc Licensed from the SAE...

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TABLE 1 - MINIMUM BAKE SOAK TIME (HOURS) AT 375 °F (191 °C) Steel/Part Description (9) Specified Temper, Minimum Strength or Minimum Hardness (1) Platings (8) Chemical Treatments Cd & Cd-Ti Ni (2) Cr Zn Cu Ag Au Sn Zn-Ni Chem (3) Etch (4) AISI 1095 180 ksi (1241 MPa) or 40 HRC (5) 23 23 8 23 8 3 3 5 8 3 4 AF1410, HP 9Ni-4Co-0.3C, AerMet 100 All 23 23 8 23 8 8 5 5 23 8 4 Other High Strength Carbon, Low-Alloy, Tool Steel 220 ksi (1517 MPa) or 46 HRC (6) 23 23 23 23 8 3 3 5 23 8 4 Lower Strength Carbon, Low- Alloy, Tool Steel 180 ksi (1241 MPa) or 40 HRC (5) (7) 8 8 3 23 8 3 3 3 8 3 4 High Strength Martensitic Stainless other than 440C 220 ksi (1517 MPa) or 46 HRC (6) 23 23 8 23 8 3 3 5 23 8 NA Lower Strength Martensitic Stainless 180 ksi (1241 MPa) or 40 HRC (7) 3 3 3 23 8 3 3 3 8 3 NA 17-7PH® 15-7PH® 17-4PH® 15-5PH® Stainless CH900, H900, H925, H950, RH950 23 23 8 23 8 3 3 3 8 3 NA CUSTOM 455® & 465® PH13-8 Mo® Stainless H950, H1000 23 23 8 23 8 8 3 8 23 3 NA NOTES: NA - Not applicable (1) Or equivalent (2) Includes electroless nickel, unless age hardened within four hours of plating (3) Chemical Processing: Etching, Stripping, Pickling, Chemical Milling (4) Etch Inspection to detect abusive grinding/machining or the presence of carburizing - Baking is required after etch inspection when hydrochloric or other reducing acid is used (e.g., AMS2649, Type 2 hydrochloric acid desmut). (5) Or higher, but having minimum less than 220 ksi (1517 MPa) or 46 HRC (6) Or higher specified minimum hardness (7) Threaded fasteners - minimum 150 ksi (1034 MPa) and higher or 34 HRC or equivalent but minimum less than 180 ksi (1241 MPa) or 40 HRC or equivalent - three hours for all processes (8) For platings not listed, use baking time shown for cadmium. (9) ® Custom 455 and Custom 465 are registered trade names of Carpenter Technology Corp. 17-7PH, 15-5PH, 15-7PH, PH13-8 Mo, and 17-4PH are registered trademarks of AK Steel (Armco).
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TABLE 2 - MINIMUM BAKE SOAK TIMES (HOURS) ON HIGH ALLOY, ULTRA-HIGH STRENGTH STEELS, AND FOR CASE HARDENED SURFACES Steel/Part Description (9) Specified Minimum Hardness (1) (8) Bake Temperature o F ( o C) Platings (6) Chemical Treatments Cd & Cd-Ti Ni (2) Cr TD Cr (7) Zn Cu Ag Au Sn Zn-Ni Chem (3) Etch (4) Music Wire All 325 °F (163 °C) 23 23 8 96 23 23 8 5 5 23 8 8 52100 62 HRC (5) 275 °F (135 °C) 23 23 23 96 23 23 23 5 5 23 8 4 52100 Below 62 HRC 375 °F (191 °C) 23 23 23 23 23 8 23 5 5 8 4 4 440C Stainless 46 HRC (5) 300 °F (149 °C) 23 23 8 96 23 8 8 5 8 23 8 NA Carburized Carbonitrided All Parts 275 °F (135 °C) 23 23 8 23 23 23 8 5 5 23 8 8 Nitrided Nitrocarburized All Parts 375 °F (191 °C) 8 8 8 23 8 8 8 3 3 8 3 4 NOTES: NA - Not applicable (1) Or equivalent (2) Includes electroless nickel unless age hardened within four hours (3) Chemical Processing: Etching, Stripping, Pickling, Chemical Milling (4) Etch Inspection to detect abusive grinding/machining or the presence of carburizing - Baking is required after etch inspection when hydrochloric or other reducing acid is used (e.g., AMS2649, Type 2 hydrochloric acid desmut).
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