FORD ESW-M1A150-AA-2002 STEEL BOLTS - LOW CARBON TO BE USED WITH FORD WSS-M99P1111-A 《低碳钢螺栓 与标准FORD WSS-M99P1111-A一起使用 》.pdf

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1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 09 24 Revised Updated and renumbered 1982 11 29 Metricated & Retyped CF4M-RD887294-21 1964 03 10 Released CP5-438028 Printed copies are uncontrolled Page 1 of 2 Copyright 2002, Ford Global Technologies,

2、 Inc. STEEL BOLTS - LOW CARBON ESW-M1A150-AA 1. SCOPE The materials defined by this specification are low carbon steels. 2. APPLICATION This specification was released to cover the chemical and mechanical requirements for low carbon steel fasteners. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PROD

3、UCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION The fasteners must be made of steel conforming in chemical composition to one of the following SAE grades: SAE 1013 SAE 1017 S

4、AE 1021 SAE 1015 SAE 1018 SAE 1022 SAE 1016 SAE 1019 3.3 MECHANICAL PROPERTIES (SAE J429) 3.3.1 Bolt Diameter 0.5 in (12.7 mm) and Less Tensile Strength, min 69 000 psi (475 MPa) Proof Load 55 000 psi (380 MPa) Hardness, Rockwell “B“, max 100 Hardness, Brinell, max 241 ENGINEERING MATERIAL SPECIFICA

5、TION ESW-M1A150-AA Page 2 of 2 Copyright 2002, Ford Global Technologies, Inc. 3.3.2 Bolt Diameter over 0.5 in (12.7 mm) to 0.75 in (19 mm) Inclusive Tensile Strength, min 64 000 psi (440 MPa) Proof Load 52 000 psi (360 MPa) Hardness, Rockwell “B“, max 100 Hardness, Brinell, max 241 3.4 MANUFACTURING

6、 METHOD Cold headed 3.5 STRESS RELIEVING Other than thin head bolts, stress relieving will not be performed unless specifically required by the engineering drawing. Carriage head and other bolts with similar thin heads must be stress relieved at 595 - 650 C for one hour minimum at heat. When this is

7、 done mechanical property requirements are waived. 3.6 BOLT IDENTIFICATION Bolt heads shall be marked to identify the manufacturer. 3.7 QUALITY Fasteners manufactured under this specification must be free of cracks, seams, banding and decarburization or other metallurgical defects which could cause premature failure of the part in service.

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