M 103M/M 103-2006
一般应用的钢铸件 碳 的标准规范

Standard Specification for Steel Castings@ Carbon@ for General Application

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标准号

M 103M/M 103-2006

发布

2006年

发布单位

AASHTO - American Association of State Highway and Transportation Officials

 

 

适用范围

This specification covers carbon steel castings for general applications that require up to 485 MPa [70 ksi] minimum tensile strength. Note 1??The grades covered by this specification represent materials that are suitable for assembly with other steel castings or wrought steel parts by fusion welding. It is not intended to imply that all these grades possess the same degree of weldability or that the same welding techniques can be used on all castings. It is the responsibility of the purchaser to establish for himself a suitable welding technique. Several grades and two classes of steel castings are covered@ as indicated below. The grade and class desired shall be specified by the purchaser. Grade N-1??Chemical analysis only. Grade N-2??Heat-treated but not mechanically tested. Grade U-415-205 [60-30]??Mechanically tested but not heat-treated. Grades 415-205 [60-30]@ 450-240 [65-35]@ 485-250 [70-36]@ and 485-275 [70-40]??Heat treated and mechanically tested. Class 1 and Class 2 steel castings shall be specified in accordance with Section 9.2. This specification is applicable to orders in either SI units (as M 103M) or inch-pound units (as M 103). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shown in brackets in the text for clarity@ but they are the applicable values when the material is ordered to M 103.

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