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1、Mechanical and Material Requirements for Metric Externally Threaded Steel Fasteners 公制外纹钢制紧固件机械性能与材要求1. Scope 范围1.1 This SAE Standard covers the mechanical and material requirements for eight property classes of steel, externally threaded metric fasteners in sizes M1.6 through M36, inclusive, and su
2、itable for use in automotive and related applications.本 SAE 标准涵盖汽车及相关工业使用，尺寸在 M1.6 到 M36 钢铁外纹紧固件的八个性能 等级的机械性能与材要求。1.2 Products included are bolts, screws, studs, U-bolts, preassembled screw and washer assemblies (sems), and products manufactured the same as sems except without washer.产品包括：栓、钉、柱、 U 型
3、栓、预装配的钉和垫片组件以及与预装配组件一 样加工的无垫圈产品。1.3 Products not covered are tapping screws, thread-rolling screws, and self-drilling screws. Mechanical and material requirementsfor these products are covered in other SAE documents.产品包括自攻钉、自挤钉、钻尾钉。这些产品的机械性能与材要求包含在 SAE 另外的标准中。1.4 The term stud as referred to herein,
4、 applies to a cylindrical rod of moderate length, threaded on either one or both ends or throughout its entire length. It does not apply to headed, collared, or similar products which are more closely characterized by requirements shown herein for bolts.柱这是指适用于中等长圆柱杆， 纹在一端有或两端有， 或全纹的产品。 它并 适用于有头的、带定
5、位的或类似于本文中所要求的栓特性近似的产品。1.5 For specification purposes, this document treats U-bolts as studs. Thus, wherever the word studs appears, U-bolts is also implied.U-bolts covered by this document are those used primarily in the suspension and related areas of vehicles. (Designers should recognize that the
6、U configuration may not sustain a load equivalent to two bolts or studs of the same size and grade; thus actual load-carrying capacity of U-bolts should be determined by saddle load tests.) 为规范，本标准将 U 型栓是为柱。因此，本文中涉及到的柱要求， U 型栓同样 适用。本文所提及的U型栓是使用于车辆悬挂位置或相关位置的产品。(设计者应解到 同样尺寸、等级的U型栓与两个栓或柱的载荷是相等的，因此, U型栓
7、的实际承载应以鞍型荷重测试方法来判定。2 References 参考资2.1 Applicable Publications The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply.适用版本-下出版物作为本标准的-部分。除非另有规定，应采用 SAE最新版本标准。2.1.1 SAE PUBLICATIONS Avai
8、lable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE 美国汽车工程协会出版物SAE J121MDecarburization in Hardened and Tempered Metric Threaded Fasteners 公制纹紧固件淬硬和回火的脱碳要求SAE J123Surface Discontinuities on Bolts, Screws, and Studs in Fatigue Applications 用于疲劳载荷的栓、钉及柱的表面连续性SAE J429Mechanical and Ma
9、terial Requirements for Externally Threaded Fasteners 外纹紧固件的机械性能及材要求SAE J1061Surface Discontinuities on General Application Bolts, Screws, and Studs 通用栓、钉及柱的表面连续性2.1.2 ASTM PUBLICATIONS Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM 美国材与试验协会出版物ASTM A 307一Specificat
10、ion for Carbon Steel Bolts and Studs, 60 000 psi Tensile 抗强 60kpsi碳钢栓、柱的相关规范要求ASTM A 354Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other ExternallyThreaded Fasteners 淬火和回火合钢栓、柱和其他外纹紧固件的标准规范ASTM A 449一Specification for Quenched and Tempered Steel Bolts and Studs 淬火和回火钢制栓及柱的
11、标准规范ASTM F 606M一St andard Tes t Met hods for Det ermining the Mechanical Proper ties of Ext ernally and Internally Threaded Fasteners, Washers, and Rivets测定外纹及内纹紧固件、垫圈及铆钉的机械特性的试验方法（米制）2.1.3 ASME PUBLICATION 一 Available from ASME, 345 East 47 Street, New York, NY 10017-2330.ASME 美国机械工程师协会出版物ASME B18.
12、2.13. Designations 标示3.1 Property classes are designated by numbers where increasing numbers generally represent increasing tensile strengths. The designation symbol consists of two parts:性能等级由数字标示，数字越大通常代表抗强越大。标示符号由两部分组成：a. The first numeral of a two-digit symbol or the first two numerals of a thre
13、e-digit symbol approximates 1/100 of the minimum tensile strength in MPa.二个数字符号的第-个数或三个数字符号的前两位数接近最小抗强（MPa）的1/100 b. The last numeral approximates 1/10 of the ratio expressed as a percentage between minimum yield stress and minimum tensile stress.最后一个数字约1/10的比表示为最小屈服强与最小抗强指间的百分比。3.2 For specificatio
14、n purposes (on engineering drawings, purchase orders, etc.) all property class designations are used in combination with a single basic specification number as follows:为规范 (在工程图、采购订单等文件中)，所有性能等级标示使用由单个基本规范的数 字组合，如下所示：SAE J1199 (4.6)SAE J1199 (4.8)SAE J1199 (5.8)SAE J1199 (8.8)SAE J1199 (9.8)SAE J119
15、9 (10.9)3.3 Property Classes 性能等级3.3.1 Machine screws are normally available only in classes 4.8 and 9.8; other bolts, screws, and studs are available in all classes within the specified product size limitations given in Tables 1A and 1B.机械钉通常仅适用于 4.8 级和 9.8 级；其他栓、 钉和柱适用于表 1A 和表 1B 所规 定所有等级。3.3.2 Sc
16、rew and washer assemblies (sems) are covered by classes 4.8 and 9.8 and allowable deviations from normal 9.8 requirements are stated in footnotes throughout the document.钉和垫片组件涵盖在 4.8级和9.8级中，偏离正常9.8 级的允差要求在整篇文档有脚注。3.3.3 At the option of the manufacturer, class 5.8 may be supplied with either class4.6 or 4.8 is ordered, and class 4.8 may be supplied when class 4.6 is ordered. 供
