SAEJ1199公制外螺纹钢制紧固件机械性能及材料要求中文版

Mechanical and Material Requirements for Metric Externally Threaded Steel Fasteners

公制外螺纹钢制紧固件机械性能与材料要求

1.Scope 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 suitable 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钢铁外螺纹紧固件的八个性能等级的机械性能与材料要求。

1.2 Products included are bolts, screws, studs, U-bolts, preassembled screw and washer assemblies (sems), andproducts manufactured the same as sems except without washer.

产品包括：螺栓、螺钉、螺柱、U型螺栓、预装配的螺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 andmaterial requirements for these products are covered in other SAE documents.

产品不包括自攻螺钉、自挤螺钉、钻尾螺钉。这些产品的机械性能与材料要求包含在SAE 另外的标准中。

1.4 The term stud as referred to herein, 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.

螺柱这里是指适用于中等长度圆柱杆，螺纹在一端有或两端都有，或全螺纹的产品。它并不适用于有头的、带定位的或类似于本文中所要求的螺栓特性近似的产品。

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 andrelated areas of vehicles.(Designers should recognize that the U configuration may not sustain a loadequivalent to two bolts or studs of the same size and grade; thus actual

load-carrying capacity of U-boltsshould be determined by saddle load tests.)

为了规，本标准将U型螺栓是为螺柱。因此，本文中涉及到的螺柱要求，U型螺栓同样适用。本文所提及的U型螺栓是使用于车辆悬挂位置或相关位置的产品。（设计者应了解到同样尺寸、等级的U型螺栓与两个螺栓或螺柱的载荷是不相等的，因此，U 型螺栓的实际承载应以鞍型荷重测试方法来判定。

2 References 参考资料

2.1 Applicable Publications—The following publications form a part of this specification to the extent specifiedherein.Unless otherwise indicated, the latest issue of SAE publications shall apply.

适用版本- 下列出版物作为本标准的一部分。除非另有规定，应采用SAE最新版本标准。

2.1.1 SAE PUBLICATIONS —Available from SAE, 400 monwealth Drive, Warrendale, PA

15096-0001.

SAE 美国汽车工程协会出版物

SAE J121M—Decarburization in Hardened and Tempered Metric Threaded Fasteners

公制螺纹紧固件淬硬和回火的脱碳要求

SAE J123—Surface Discontinuities on Bolts, Screws, and Studs in Fatigue Applications

用于疲劳载荷的螺栓、螺钉及螺柱的表面不连续性

SAE J429—Mechanical and Material Requirements for Externally Threaded Fasteners

外螺纹紧固件的机械性能及材料要求

SAE J1061—Surface Discontinuities on General Application Bolts, Screws, and Studs

通用螺栓、螺钉及螺柱的表面不连续性

2.1.2ASTM PUBLICATIONS—Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.

ASTM 美国材料与试验协会出版物

ASTM A 307—Specification for Carbon Steel Bolts and Studs, 60 000 psi Tensile

抗拉强度60kpsi碳钢螺栓、螺柱的相关规要求

ASTM A 354—Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other ExternallyThreaded Fasteners

淬火和回火合金钢螺栓、螺柱和其他外螺纹紧固件的标准规

ASTM A 449—Specification for Quenched and Tempered Steel Bolts and Studs

淬火和回火钢制螺栓及螺柱的标准规

ASTM F 606M—Standard Test Methods for Determining the Mechanical Properties of Externally andInternally Threaded Fasteners, Washers, and Rivets

测定外螺纹及螺纹紧固件、垫圈及铆钉的机械特性的试验方法(米制)

2.1.3 ASME PUBLICATION—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 B18.2.1

3. 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拉强度越大。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 three-digit symbol approximates1/100 of the minimum tensile strength in MPa.

二个数字符号的第一个数或三个数字符号的前两位数接近最小抗拉强度（MPa）的1/100。

b. The last numeral approximates 1/10 of the ratio expressed as a percentage between minimum yieldstress and minimum tensile stress.

最后一个数字约1/10的比率表示为最小屈服强度与最小抗拉强度指间的百分比。

3.2 For specification purposes (on engineering drawings, purchase orders, etc.) all property class designations are used in bination with a single basic specification number as follows:

为了规（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 J1199 (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 areavailable in all classes within the specified product size limitations given in Tables 1A and 1B.

机械螺钉通常仅适用于4.8级和9.8级；其他螺栓、螺钉和螺柱适用于表1A和表1B所规定所有等级。

3.3.2 Screw and washer assemblies (sems) are covered by classes

4.8 and 9.8 and allowable deviations fromnormal 9.8 requirements are stated in footnotes throughout the document.

螺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 class

4.6 or 4.8 is ordered,and class4.8 may be supplied when class 4.6 is ordered.

供应商可自行选择：4.6级或4.8级订单产品可按5.8级提供；4.6级订单产品可按4.8级提供。

3.4 Conversion Guidance 转换指导

3.4.1 For guidance purposes only, to assist designers in selecting a property class:

仅为引导目的，以协助设计者选着性能等级：

a. Class 4.6 is approximately equivalent to SAE J429, Grade 1 and ASTM A 307, Grade A.

4.6级性能强度近似于SAE J429 等级1和ASTM A307 等级A的性能强度。

b. Class 5.8 is approximately equivalent to SAE J429, Grade 2.

5.8级性能强度近似于SAE J429 2级的性能强度。

c. Class 8.8 is approximately equivalent to SAE J429, Grade 5, and ASTM A 449.

8.8级性能强度近似于SAE J429 5级和ASTM A 499的性能强度。

d. Class 9.8 has properties approximately 9% stronger than SAE J429, Grade 5, and ASTM A 449.

9.8级机械性能强度比SAE J429 5级和ASTM A 499 的强度高约9%。

e. Class 10.9 is approximately equivalent to SAE J429, Grade 8, and ASTM A 354, Grade BD.

10.9级性能近似于SAE J429 8级和ASTM A 354 BD级的性能强度。

3.4.2 Note that class 8.8 is applicable to sizes above 16 mm, and class 9.8 is applicable to sizes 16 mm andsmaller.

8.8级适用于尺寸大于16mm的产品，9.8适用于尺寸≤16mm的产品。

4 Materials and Processes 材料及流程

4.1 Steel Characteristics—Bolts, screws, and studs shall be made of steel conforming to the description andchemical position requirements specified in Table 2 for the applicable property class.

4.2 Heading practice 头部成型

4.2.1 Methods other than upsetting and/or extrusion are permitted only by special agreement between purchaserand manufacturer.

有别于一般镦锻成型或挤压成型以外的成型方式需经过买卖双方同意方可执行。

4.2.2 Class 4.6 may be hot or cold headed at option of the manufacturer.

4.6级的产品用热锻或冷锻，由制造方决定。

4.2.3 Class 4.8,

5.8, 8.8, 9.8, and 10.9 bolts and screws in sizes up to M20 inclusive, and lengths up to 10 timesthe nominal product size or 150 mm, whichever is shorter, shall be cold headed, except that they may be hotheaded by special agreement of the purchaser. Larger sizes and longer lengths may be cold or hot headedat option of the manufacturer.

4.8、

5.8、8.8、9.8和10.9级螺栓、螺钉，尺寸≤M20、长度是小于等于产品公称尺寸10倍或≤150mm须冷镦成型，客户特别要求热锻成型的除外。大尺寸或较长尺寸的产品则可由制造者自行决定使用冷锻或热锻成型。

4.3 Threading Practice—Class 4.8,

5.8, 8.8, 9.8, and 10.9 bolts and screws in sizes up to M20 inclusive, andlengths up to 150 mm inclusive, shall be roll threaded, except by special agreement. Threads of all sizes ofclass 4.6 bolts and screws and class 4.8, 5.8, 8.8, 9.8, and 10.9 bolts and screws in sizes over M20 and/orlengths longer than 150 mm, may be rolled, cut, or ground, at option of the manufacturer. Threads of allclasses and sizes of studs may be rolled, cut, or ground at option of the manufacturer.

螺纹成型– 4.8、5.8、8.8、9.8和10.9级螺栓、螺钉，尺寸≤M20，长度≤150mm, l螺纹须滚制成型，客户特殊要求除外。4.6级螺栓、螺钉所有尺寸的螺纹，4.8、5.8、8.8、9.8和10.9级的螺栓、螺钉的螺纹，尺寸＞M20 级及/或长度＞150mm,可采用滚制、切削或磨削方式进行制造，由制造商自行决定。所有等级及所有尺寸的螺柱的螺纹可采用滚制、切削或磨削方式进行制造，由制造商自行决定。

4.4 Heat Treatment Practice 热处理

4.4.1 Class 4.6 bolts and screws and class 4.6, 4.8, and

5.8 studs need not be heat treated. Class 4.8 and 5.8bolts and screws shall be stress relieved if necessary to assure the soundness of the head to shank junction.When specified by the purchaser, class 5.8 bolts and screws shall be stress relieved at a minimum stressrelief temperature of 470 °C. Where higher temperatures are necessary to relieve stresses in severely upsetheads, mechanical requirements shall be agreed upon by manufacturer and purchaser.

等级4.6的螺栓、螺钉以及等级4.6、4.8和5.8级的螺柱不需要热处理。4.8和5.8级的螺栓、螺钉如必要的话须消除应力，以保证头杆连接处的稳固性。如买方特别指定，5.8 级螺栓、螺钉应在最小470℃温度下消除应力。当需要更高的温度来消除应力时，机械性能要求须买卖双方达成一致。

4.4.2 Class 8.8 and 9.8 bolts, screws, and studs shall be heat treated, quenched in oil or water-base quenchant atthe option of the manufacturer, and tempered at a minimum tempering temperature of 425 °C for class 8.8and 410 °C for class 9.8. For class 9.8 screw and washer assemblies (sems), quenchants whose principalconstituent is water shall NOT be used, and tempering temperature shall be no less than 340 °C. See also4.4.

5.

8.8和9.8级螺栓、螺钉及螺柱应进行热处理，油淬或水淬供应商自行决定，8.8级最小回火温度425℃、9.8级最小回火温度410℃。对于9.8级螺钉与垫片组件不得使用主要成分为水的淬火介质，回火温度不得低于340℃。亦可见4.4.5。

4.4.3 Medium carbon alloy steel class 10.9 bolts, screws, and studs shall be heat treated, oil quenched, andtempered at a minimum tempering temperature of 425 °C. Low-carbon martensite

steel class 10.9 bolts,screws, and studs shall be heat treated, quenched in oil or water-base quenchant at the option of themanufacturer, and tempered at a minimum tempering temperature of 340 °C. See also 4.4.5.