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ASTM A749/A749M-2008 热轧高强度碳素低合金钢带材的标准规范

ASTM A749/A749M-2008 热轧高强度碳素低合金钢带材的标准规范

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【英文标准名称】: Standard Specification for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled, General Requirements for
【原文标准名称】: 热轧高强度碳素低合金钢带材的标准规范
【标准号】: ASTM A749/A749M-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: A01.19
【标准类型】: (Specification)
【标准水平】: ()
【中文主题词】: 碳
【英文主题词】: carbon; steel; strip; Alloy steel sheet/strip--specifications; Carbon steel sheet/strip--specifications; General delivery requirements--steel; Hot-rolled steel sheet/strip--specifications; HSLA (high-strength low-alloy) steel sheet/strip--specificat
【摘要】: 1.1 This specification covers the general requirements for hot-rolled steel strip in coils and cut lengths. It applies to carbon steel and high-strength, low-alloy steel furnished as hot-rolled. 1.2 This specification is not applicable to hot-rolled heavy-thickness carbon sheet and strip coils (Specification A 635/A 635M), cold-rolled carbon steel strip (Specification A 109/A 109M), high-strength, low-alloy cold-rolled steel (Specifications A 606 and A 1008/A 1008M) or cold-rolled carbon spring steel (Specification A 682/A 682M). 1.3 In case of any conflict in requirements, the requirements of the individual material specification shall prevail over those of this general specification. 1.4 For the purposes of determining conformance with this and the appropriate product specification referenced under 2.1, values shall be rounded to the nearest unit in the right hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E 29. 1.5 Annex A1 lists permissible variations in dimensions and mass (Note 1) in SI [metric] units. The values listed are not exact conversions of the values listed in the inch-pound tables, but instead are rounded or rationalized values. Conformance to Annex A1 is mandatory when the x201C;Mx201D; specification is used. Note 18212;The term x201C;weightx201D; is used when inch-pound units are the standard; however, under SI, the preferred term is x201C;mass.x201D; 1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.7 This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However, unless the order specifies the applicable x201C;Mx201D; specification designation (SI units), the material shall be furnished to inch-pound units.
【中国标准分类号】: H46
【国际标准分类号】: 77_140_50
【页数】: 9P.;A4
【正文语种】: 英语

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