1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2009 03 25 N-STATUS No Replacement Named L. Sinclair, FNA 2002 07 29 Revised Updated and renumbered 1983 02 11 SM/EQ5332TP Released Printed copies are uncontrolled Page 1 of 2 Copyright 2009, Ford Global Tec
2、hnologies, Inc. STEEL, UNALLOYED - INDUCTION HARDENABLE SQ-M1A9410-A38 SQ-M1A9410-A46 SQ-M1A9410-A53 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an unalloyed carbon steel. 2. APPLICATION This specification was released originally for the manufacture of car pa
3、rts, which have to be induction hardened. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION, % Steel Type SQ-M1A9410-A38 SQ-M1
4、A9410-A46 SQ-M1A9410-A53 C 0.37 - 0.43 0.44 - 0.50 0.52 - 0.57 Si 0.15 - 0.35 0.15 - 0.35 0.15 - 0.35 Mn 0.70 - 0.90 0.60 - 0.8 0.60 - 0.80 S 0.025 - 0.040 0.025 - 0.040 0.025 - 0.040 P max 0.035 max 0.035 max 0.035 Al min 0.020 min 0.020 min 0.020 Cr max 0.20 max 0.30 max 0.20 Ni max 0.15 max 0.20
5、max 0.15 Mo max 0.08 max 0.08 max 0.08 Sum Cr+Ni+Mo 0.15 - 0.35 0,15-0,35 0.15 - 0.35 3.3 AUSTENITE GRAIN SIZE 5 - 8 (Checking according to SAE J 418 a) ENGINEERING MATERIAL SPECIFICATION SQ-M1A9410-A38/A46/A53 Page 2 of 2 Copyright 2009, Ford Global Technologies, Inc. 3.4 HARDENABILITY (Checking ac
6、cording to SAE J 406 c) The hardenability tests have to be carried out with samples with the dimension diameter 28 x 100 mm. QUENCHING MEDIUM - Water Steel Type SQ-M1A9410-A38 SQ-M1A9410-A46 SQ-M1A9410-A53 Case Depth, mm + min max min max min max Hardening Temperature C 780 - - - - 6 10 820 3 6 4 -
7、6 + 860 3.5 6.5 5 - 7 + 900 4 6.5 - - 10 + +) Hardness value limit of case depth 500 HV3 +) Through hardened 3.5 DEGREE OF PURITY 3.5.1 MACROSCOPIC DEGREE OF PURITY Must conform to Ford specification SQ-M99P9000-A. 3.5.2 MICROSCOPIC DEGREE OF PURITY Must conform to Ford specification SQ-M99P9001-A.
