FORD WSS-M1A344-A2-2013 STEEL SHEET HOT ROLLED LOW CARBON IMPROVED FORMABILITY TO BE USED WITH FORD WSS-M99P1111-A (Shown on FORD WSS-M1A344-A1 No direct replacement use CBP stra.pdf

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1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2013 05 06 N Status No direct replacement, use CBP strategy D. Rhuno, NA 2002 09 30 Revised Rev para 4.12 R. Lord 2000 09 21 Activated K J Thurgood (FAO), M Fukahori (Mazda) Controlled document at www.MATS P

2、age 1 of 9 Copyright 2013, Ford Global Technologies, Inc. STEEL, SHEET, HOT ROLLED, LOW CARBON, WSS-M1A344-A1 GENERAL FORMABILITY STEEL, SHEET, HOT ROLLED, LOW CARBON, WSS-M1A344-A2 IMPROVED FORMABILITY NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are hot roll

3、ed low carbon steel sheet suitable for cold forming (see para 4.1). Specification WSS-M1P94-A shall be used where precoating by the steel supplier is required. 2. APPLICATION These specifications were released originally for 2003 model year automotive body parts. They also simplify material designat

4、ion on Engineering Drawings when steels with mechanical properties suitable for designing and forming the part are to be specified and components could be sourced in several countries. The abbreviations heading the tables (see para 4.4) indicate the country or company of origin of the specification

5、as follows: ISO International Standards Organization BS UK of GB Materials Engineering, Testing Thickness 2.30 mm.) Test specimens and method based on JIS Z 2201. Values for Yield, Tensile Strength and Elongation area based on specimens taken in the longitudinal direction (0 deg to rolling). The fig

6、ures in brackets (parentheses)for Yield strength and %Elongation, indicate typical values. Grade Yield Strength Tensile Strength % Elongation (A50) r90 n90 r - bar n - bar (Re) (MPa) (Rm) (MPa) (50 mm GL) SPHN1 185 - 305 (245) 270 min 37 - 51 (44) n/a n/a n/a n/a JSH270C SPHN2 175 - 285 (230) 270 mi

7、n 39 - 53 (46) n/a n/a n/a n/a JSH270D SPHN3 JSH270E 155 - 255 (205) 270 min 42 -.55 (48) n/a n/a n/a n/a (n/a means not applicable) 4.11 CHARACTERISTICS OF HOT ROLLED MATERIALS (WSS-M1A344-A1/A2) TABLE 4: Typical Values Based On European Practice (For Hot Dipped Galvannealed). Test specimens taken

8、in the transverse (i.e. 90 deg to the rolling) direction. Grade Yield Strength Tensile Strength % Elongation (A80) r90 n90 r - bar n - bar (Re) (MPa) (Rm) (MPa) (80 mm GL) DD11 Not Available Not Available Not Available n/a n/a n/a n/a DD13 Not Available Not Available Not Available n/a n/a n/a n/a (n

9、/a means not applicable) ENGINEERING MATERIAL SPECIFICATION WSS-M1A344-A1/A2 Page 8 of 9 Copyright 2013, Ford Global Technologies, Inc. TABLE 5: Typical Values Based on North American Practice (For Hot Dipped Galvannealed). Test specimens and method based on ASTM standards. Values for Yield, Tensile

10、 Strength and Elongation area based on specimens taken in the longitudinal direction (0 deg to rolling). Grade Yield Strength Tensile Strength % Elongation (A50) r90 n90 r - bar n - bar (Re) (MPa) (Rm) (MPa) (50 mm GL) CS Not Available Not Available Not Available n/a n/a n/a n/a DS 255 - 334 338 - 4

11、07 33 - 43 n/a n/a n/a 0.165 - 0.210 (n/a means not applicable) TABLE 6: Typical Values Based on Japanese Practice (For Hot Dipped Galvannealed; Thickness 2.30mm.) Test specimens and method based on JIS Z 2201. Values for Yield, Tensile Strength and Elongation area based on specimens taken in the lo

12、ngitudinal direction (0 deg to rolling). The figures in brackets (parentheses)for Yield strength and %Elongation, indicate typical values. Grade Yield Strength Tensile Strength % Elongation (A50) r90 n90 r - bar n - bar (Re) (MPa) (Rm) (MPa) (50 mm GL) SPHM1 195 - 315 (255) 270 min 36 - 50 (43) n/a

13、n/a n/a n/a JAH270C SPHM2 185 - 295 (240) 270 min 38 - 52 (45) n/a n/a n/a n/a JAH270D SPHM3 JAH270E 165 - 265 (215) 270 min 41 - 54 (47) n/a n/a n/a n/a Note: The above grades are taken from JFS A 3011 and MES MM 108. (n/a means not applicable) ENGINEERING MATERIAL SPECIFICATION WSS-M1A344-A1/A2 Pa

14、ge 9 of 9 Copyright 2013, Ford Global Technologies, Inc. 4.12 REFERENCE DOCUMENTS The reference documents are: ASTM A 569M BS 1449 ASTM E 8M WSS-M1P94-A EN 10111 ASTM A 568M EN 10002 ISO 3573 ISO 6892 DIN 1614 JIS G 3131 JIS Z 2201 JFS A 1001 JFS A 3011 ASTM A 622M ISO 2566/1 EN 10051 MES MM 100 MES

15、 MM 108 MES MN 606 JFS A 2001 WSS-M1A345-A1/A2 ES-YC15-1N260-AA WSS-M99P9999-A1 WSS-M99P1111-A 4.13 METHOD OF SPECIFYING The specification on the Engineering Drawing shall include, if applicable, the surface quality; also the coating(s) defined by WSS-M1P94-A. e.g. Steel, Sheet, Hot Rolled, Low Carb

16、on, Improved Formability, uncoated, for a non-visible bracket of 2 mm thickness, would be specified thus: . Steel to WSS-M1A344-A2: Class 3 e.g. Steel, Sheet, Hot Rolled, Low Carbon, General Formability, coated with double sided Electrolytic Zinc, (typical European usage), for a non-visible reinforcement of 3 mm thickness, would be specified by thus: . Steel to WSS-M1A344-A1, coated to WSS-M1P94-A: 50G50G-EL, Class 3 NOTE: This document is dedicated to the memory of the late Brian Lawrence Edwards (1939 - 1999), whose foresight developed the first of this style of specifications in 1994.

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