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1、冷锻造紧固件和相似元件钢 第1部分 碳和低合金钢丝规格98436阅读一本不适合自己阅读的书，比不阅读还要坏。我们必须会这样一种本领，选择最有价值、最适合自己所需要的读物。别林斯冷锻造紧固件和相似元件钢第1部分 碳和低合金钢丝规格Contents目录1 Scope范围2 Designation命名3 Information to be supplied by the purchaser采购商提供的信息4 General概要5 Steelmaking process制钢工艺6 Freedom from defects故障免除7 Decarburization脱碳8 Chemical composi
2、tion化学成分9 Mechanical tests机械测试10 Hardenability可淬性11 Grain size颗粒尺寸12 Tolerances on diameter直径公差13 Marking标注14 Test certificate测试证书Appendices附录A Options选项B Tests for surface defects表面缺陷测试C Detection of surface carburization表面渗碳探测D Hardening test on steel wire for wire diameters not exceeding 25 mm对直径
3、不超过25mm的钢丝的淬水测试Tables表格1 Permitted depths of decarburization脱碳允许深度2 Chemical composition (ladle analysis)化学成分（铸桶分析）3 Permitted deviations in product analysis from specified range: carbon steels types Oand 1 and boron-treated steels types 9 and 1 O指定范围内：碳钢类型0和1，硼处理钢9和10，产品分析中允许的背离值4 Permitted deviati
4、ons in product analysis from specified range: alloy steels types 2,3,5 and 7指定范围内：合金钢类型2,3,5 和7，产品分析中允许的背离值5 Mechanical properties of wire金属线机械性能6 Hardenability requirements可淬性要求7 Steel type 1: Jominy hardenability requirements钢类型1：8 Tolerances on diameter直径公差9 Number of turns in reverse torsion tes
5、t扭转疲劳测试中旋转的匝数Specification规格1 Scope范围This Part of BS 31 11 specifies requirements for steel wire up to and including 30 mm diameter for use in the manufacture of low, medium and high tensile, cold forged fasteners and similar components in the following eight types of steel.此BS 31 11部分指定了在生产低，中，高拉力，
6、冷锻造紧固件和相似元件中使用的30mm铜丝的要求，包括以下八种类型的钢：O low carbon steel低碳钢1 medium carbon steel中碳钢2 carbon-molybdenum steel碳钼钢3 1 % chromium steel 1 %铬钢5 1 % chromium-molybdenum steel 1 %铬钼钢7 1/2 % nickel-chromium-molybdenum steel 1/2 %镍铬钼钢9 low carbon-manganese-boron steel低碳锰硼钢10 medium carbon-manganese-boron steel
7、中碳锰硼钢NOTE. The titles of the publications referred to in this standard are listed on the inside back cover.注意：此标准引用的参考文献见内封底2 Designation命名The designation shall consist of the following items in the order given:命名按照以下顺序给出：(a) the number of this British Standard, ?.e. BS 31 11 : Part 1 ;此英国标准的数量?.e.
8、BS 31 11 :部分1；(b) the type number and grade number of steel required (see table 2);要求低的钢的类型数和等级数（见表2）；(c) the abbreviation COND and one of the following letters denoting the delivery conditions:缩略语COND和以下一个字母表明交付条件：A denotes drawn to size and finally spheroidize annealed; A指按尺寸和最终球化退火冷拉；B denotes dr
9、awn, spheroidize annealed and finally light drawn; B指冷拉，球化退火，最终轻拉；C denotes spheroidize annealed and finally light drawn; C指球化退火和最终轻拉；D denotes direct drawn. D指直接冷拉(d) the abbreviation GR and the number denoting the grade of decarburization required (see clause 7). 缩略语GR和数量表明要求的脱碳等级（见条款7）Examples of
10、 this designation are as follows:此命名示例如下：(1)BS3111 :Part 19/2CONDAGR3(2) BS 31 11 : Part 1 0/1 COND B3 Information to be supplied by the purchaser采购商提供的信息3.1 General概要The following information shall be supplied by the purchaser at the time of enquiry and order.在询问和定购时采购商应提供以下信息：(a) the complete desi
11、gnation as covered by clause 2;由条款2指定的完整的命名(b) the nominal, maximum or minimum diameter required (see clause 12);要求的名义上的，最大或最小直径（见条款12）；(c) the coil mass with inside and outside diameters.内直径和外直径的圈数。NOTE. If coatings are required the type of coating to be applied, its mass or thickness and method of
12、 measurement should be agreed at the time of the enquiry and order.注意：如果要求用指定类型的涂层，应在询问和定购时达成关于圈数和厚度和测量方式的协议。3.2 Options选项A number of options are specified in appendix A. In the event that the purchaser does not indicate his wish to implement any of these options and specify his requirementsat the t
13、ime of the enquiry and order, the manufacturer shall supply in accordance with the basic specification.在附录A中指定了大量选项。在采购商在询问和定购时不能表明有亿元实施任何选项和指定其要求时，生产商应按照基本规格提供。4 General概要The wire shall comply with the general requirements of this standard and the appropriate specific requirements for the steel typ
14、e and grade. Where any of the options given in appendix A are called up at the time of the enquiry and order, the wire shall, in addition, comply with the requirements of any such options.钢丝应符合此标准的一般要求和对于钢类型和等级的适当的详细的要求。在询问和定购时提出任何附录A中的选项时，钢丝应与任何选项的要求相一致。5 Steelmaking process制钢工艺The steel making and
15、 casting process shall be any process except the Bessemer process. See also option A.1.制钢和铸造工艺应是除Bessemer工艺外的任何工艺。也见选项A.1。6 Freedom from defects故障免除The steel shall be free from pipe and from such segregation and surface defects as might preclude its use for the purpose for which it is intended. See also option A.2.除应用目的外，钢应从金属管中，隔离的和表面故障中自由移动，也见选项A.2。7 Decarburization脱碳7.1 The requirements of 7.2 and 7.3 shall not apply to steel type O except type 0/4.除类型0/4，7.2 和7.3的要求不得应用与钢类型0中。7.2 Decarburization shall be determined by microscopic examination as described in BS 6617 : Part 1.按照BS 6617 : 第
