ASTM A325-2007a 最小抗拉强度为120/105ksi的热处理钢结构螺栓的标准规范

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                   【英文标准名称】:     Standard Specification for  Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength            【原文标准名称】:     最小抗拉强度为120/105ksi的热处理钢结构螺栓的标准规范            【标准号】:     ASTM A325-2007a            【标准状态】:     现行            【国别】:                 【发布日期】:     2007    【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】: F16.02【标准类型】: (Specification)【标准水平】: ()【中文主题词】: 螺栓;紧固件;高抗拉;结构钢【英文主题词】: bolts;  carbon steel;  steel;  structural;  weathering steel【摘要】: 1.1 This specification  covers two types of quenched and tempered steel heavy hex structural bolts having a minimum tensile  strength of 120 ksi for sizes 1.0 in. and less and 105 ksi for sizes over 1.0 to 1x00BD; in., inclusive.  1.2 The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A 325 or A 490 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.   1.3 The bolts are furnished in sizes x00BD; to 1x00BD; in., inclusive. They are designated by type, denoting chemical composition as follows:  Type Description     Type 1 Medium carbon, carbon boron, or medium carbon alloy steel.  Type 2 Withdrawn in November 1991.  Type 3 Weathering steel.         
         

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张妍同学_ 发表于 2013-3-29 13:30
真的有需要啊，怎么下载呢？

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