FORD WSS-M1A348-A9-2013 STEEL SHEET COLD ROLLED DUAL PHASE TO BE USED WITH FORD WSS-M99P1111-A (Shown on FORD WSS-M1A348-A1 No direct replacements use CBP strategy).pdf

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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2013 05 06 N Status A1/2/3/4/5/6/7/8/9 no direct replacements, use CBP strategy D. Rhuno, NA 2006 05 03 Revised Para 3.2.1, 3.6 para 1, 2, 3.2.1, 3.2.2, 3.5, 3.5.1, 3.5.2, 3.6, 3.7, 3.8, 3.9, 4.1, 4.2, 4.3, 4.4, 4.5, 4.8, 4.9, 4, 9.2, 4.11, 4

2、.12, 4.13, 4.14 revised; para 4.10 del; new 3.2.3; now 9 pages K J Thurgood (FOE) 2001 03 08 Activated K. Thurgood (FORD), M. Fukahori (MAZDA), L. Ekelund (VOLVO) Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 8 STEEL, SHEET, COLD ROLLED, DUAL PHASE WSS-M1A34

3、8-A1/A2/A3/A4/A5/A6/A7/A8/A9 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are of the cold rolled Dual Phase type, which includes steel grades with minimum tensile strengths in the range of 450 to 980 MPa (see para 3.5.1). Appropriate steel making practices are

4、 used to generate (primarily) martensite as a dispersed second phase in a ferrite matrix. 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 body (particularly the front end stru

5、cture) and chassis parts requiring a higher strength to weight ratio and improved formability than that offered by conventional HSLA (High Strength Low Alloy) steels. The high strength levels and high degree of work hardening make Dual Phase steels desirable for dent resistance, increased load beari

6、ng capability, better crash energy management, and for part mass reduction through a decrease in sheet metal thickness (gauge). Note: Materials defined by these specifications exhibit bake hardening characteristics. Para 3.5.2 defines mechanical property requirements for tensile specimens which have

7、 been strained and baked prior to testing. Note: Because of regional supply base variations and to make the most effective use of these specifications, users should consult with the local Product Development Materials Engineering activity. Note: Please be aware that variants A4, A5, A7, A8 and A9 ar

8、e not yet suitable for Class 1 applications. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Prod

9、uction Materials (WSS-M99P1111-A). 3.2 DIMENSIONS AND DIMENSIONAL TOLERANCES 3.2.1 Thickness and Thickness Tolerances (see para 4.5) The thickness specified on the Engineering Drawing or CAD (computer aided design) file shall be a minimum or a nominal, depending upon the vehicle model program. ENGIN

10、EERING MATERIAL SPECIFICATION WSS-M1A348-A1/A2/A3/A4/A5/A6/A7/A8/A9 Copyright 2013, Ford Global Technologies, LLC Page 2 of 8 3.2.2 Use of Engineering Specifications for Thickness (see also para 4.5) This para is for FOE (Ford of Europe) and PAG (Premier Automotive Group) ONLY. Parts newly designed

11、(ie. not carry-over) for 2000 to 2006 model year, shall satisfy the thickness and thickness tolerance requirements of ES-YC15-1N260-A(-)*. Parts newly designed (ie. not carry-over) for 2006 model year onwards (beginning with EuCD), shall satisfy the thickness and thickness tolerance requirements of

12、ES6G91-1N260-A(-)*. Exceptions to this (for FOE) shall be authorized by PDE Materials Engineering local procedure V1P-03-132 refers. Exceptions to this (for PAG) shall be authorized by Materials Engineering. (* the currently released level) 3.2.3 Use of Engineering Specifications for Thickness (see

13、also para 4.5) This para is for the Americas ONLY. Use ES-YC15-1N260-A(-)* ie. all plus thickness tolerances. (* the currently released level) 3.3 OTHER DIMENSIONS, TOLERANCES AND ASSOCIATED ITEMS . These shall be defined by the relevant national standards (see para 4.6) . As appropriate to the rele

14、vant national standards, the title of this paragraph shall be interpreted to include length, width, flatness, camber and mass. 3.4 CHEMICAL COMPOSITION (weight percent) (see para 4.7) The upper and lower limits of chemical composition of the controlled elements shall be established by the supplier a

15、nd be included in the Control Plan. 3.5 MECHANICAL PROPERTIES (See also para 4.12) (Longitudinal Tensile Specimens)(50 mm Gauge Length) (ISO 6892/ASTM E 8M/EN 10002/JIS G 3135/JFS A 2001) (Note: Certain gauge (thickness) limitations apply) ENGINEERING MATERIAL SPECIFICATION WSS-M1A348-A1/A2/A3/A4/A5

16、/A6/A7/A8/A9 Copyright 2013, Ford Global Technologies, LLC Page 3 of 8 3.5.1 As Received Variant A1 A2 A3 A4 A5 A6* A7* A8 A9 Yield Strength (0.2 % offset) (MPa min) 260 270 300 310 340 270 310 420 550 (MPa max) 330 350 370 390 410 370 410 560 730 Tensile Strength (MPa min) 450 500 500 600 600 500 6

17、00 780 980 *Elongation (% min) 30 27 26 23 22 26 22 14 7 *A gauge length (GL) of 80 mm may be used for control purposes, with appropriate (multiplication factor of 1.10 (80 mm GL to 50 mm GL) correction in % Elongation. In all cases, 50 mm will be considered the umpire standard gauge length. When th

18、e gauge (thickness) is less than or equal to 0,70 mm, the minimum value for the % Elongation is reduced by 2 units. *Variants A6 and A7 shall only be used (while still maintaining the design minimum Yield Strength) when the regional supply base can not provide variants A2 to A5. Note: Variants A1 to

19、 A5 have had their % Elongation figures taken from SEW097 1st edition (as A80) and recalculated to A50 according to ISO 2566/1. 3.5.2 After 2% Pre-Strain and 170 C for 20 Minutes Variant A1 A2 A3 A4 A5 A6 A7 A8 A9 Yield Strength (0.2 % offset) (MPa min) 360 370 400 410 440 370 410 520 650 The above

20、figures assume a minimum bake hardening contribution (BH2) of 30 MPa and a minimum work hardening contribution (WH2) of 70 MPa. 3.6 FORMABILITY The quality level of steel supplied to fabricate a specific component shall be negotiated between the manufacturing activity and the steel supplier. Steel i

21、nternal cleanliness may involve the use of a mutually agreed umpire method (see para 4.8). Acceptance of subsequent orders by the steel supplier for a given component at the agreed upon quality level implies that all steel supplied will be of a comparable quality level and will form that part satisf

22、actorily as defined by the manufacturing activity. ENGINEERING MATERIAL SPECIFICATION WSS-M1A348-A1/A2/A3/A4/A5/A6/A7/A8/A9 Copyright 2013, Ford Global Technologies, LLC Page 4 of 8 The company may, at its option and in agreement with the steel supplier, define characteristics such as mechanical pro

23、perties, testing direction, formability, surface texture, oiling, thickness 1 micrometer (+/- 0.5 micrometer) band width; 12.5 mm min effective traverse length; flat skid type) is defined thus: . Class 1 (also known as B (EN 10130) or full finish (FF); Ra 1.0 - 1.6 microns (2.5 mm cut-off) or Ra 0.8

24、 1.4 microns (0.8 mm. cut-off). Peak Density 50 ppcm (peak valley pairs per centimeter) min. . Class 2 (also known as A (EN 10130) or General Purpose (GP): Ra 1.0 - 1.7 microns (2.5 mm cut-off) or Ra 0.8 1.5 microns (0.8 mm. cut-off). Peak Density not defined. ENGINEERING MATERIAL SPECIFICATION WSS-

25、M1A348-A1/A2/A3/A4/A5/A6/A7/A8/A9 Copyright 2013, Ford Global Technologies, LLC Page 8 of 8 . Class 3: Ra 1.0 - 1.7 microns (2.5 mm cut-off) or Ra 0.8 1.5 microns (0.8 mm. cut-off). Peak Density not defined. 4.9.3 North American Guidance Class 1 surfaces shall meet the requirements of ESB-M2P130-A (

26、see para 3.4). 4.11 PAINTABILITY . Examples are MES MN 606, ESB-M2P130-B and WSS-M2P180-A. 4.12 ADDITIONAL MECHANICAL PROPERTY INFORMATION (See also para 3.5) Variant A1 A2 A3 A4 A5 A6 A7 A8 A9 n 4 6 (min) 0.21 0.20 0.19 0.19 0.18 0.19 0.18 0.15 0.08 n 5 15 (typical) 0.22 0.21 0.21 0.21 Note: For Pr

27、oducts which are Hot Dip Zinc Coated (Galvanized (GI) or Hot Dip Zinc-Iron Coated (Galvannealed (GA), the n value (work hardening exponent) is reduced by 0.02 units. Note: A typical Yield (Re) to UTS (Rm) ratio is 0.60 to 0.70. 4.13 REFERENCE DOCUMENTS The reference documents are: ASTM A 568M ES-YC1

28、5-1N260-A(-) MES MN 606 ASTM E 8M ISO 2566/1 SEP 1940 EN 10002 ISO 6892 SEW097, 1st Edition, 1/2000 EN 10049 JFS A 2001 WSS-M1P94-A EN 10051 JIS G 3135 WSS-M2P180-A EN 10131 JIS Z 2201 ESB-M2P130-B MES MM 106 WSS-M99P1111-A V1P-03-132 ES6G91-1N260-A(-) EN 10130 ES-6H52-00001-A* JMS 10.10.13 prEN 103

29、36 4.14 METHOD OF SPECIFYING The specification on the Engineering Drawing or CAD file shall include, if applicable, the surface quality; also the coating(s), as defined by WSS-M1P94-A. e.g. Steel, Sheet, Cold Rolled, Dual Phase, hot dip zinc coated, minimum yield strength 340 MPa, minimum tensile strength 600 MPa, for a non-visible component, would be specified thus: WSS-M1A348-A5: Class 3 Coated to WSS-M1P94-A, 50G50G-HD

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