1、Designation: A313/A313M 18Standard Specification forStainless Steel Spring Wire1This standard is issued under the fixed designation A313/A313M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in
2、parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification covers austenitic, austenitic-ferritic,
3、and age-hardenable stainless steel round spring wire intendedespecially for the manufacture of springs.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be u
4、sed independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 Unless the order specifies an “M” designation, thematerial shall be furnished to inch-pound units.1.4 This international standard was developed in accor-dance with internationally
5、recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A555/A555M Speci
6、fication for General Requirements forStainless Steel Wire and Wire RodsA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.2 Society of Automotive Engineers Standard:3J 1086 Numberin
7、g Metals and Alloys3. Ordering Information3.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Such requirements may include, but are notlimited to the following:3.1.1 Quantity (weight),3.1.2 Name of material (stain
8、less steel spring wire),3.1.3 Finish (see 8.1),3.1.4 Dimension (diameter),3.1.5 Type designation (Table 1),3.1.6 ASTM designation and date of issue,3.1.7 Tensile strength level, when applicable (Table 11 andTable 12),3.1.8 Supplementary requirements for governmentprocurement, and3.1.9 Special requir
9、ements.NOTE 1A typical ordering description is as follows:2000 lb (1000 kg) Stainless Steel Spring Wire, cold-drawn Class 1,bright finish, 0.032-in. (0.82 mm) diameter, in 100-lb (50 kg) 16-in. (0.4m) coils, Type 302 to ASTM A313, dated _.4. General Requirements for Delivery4.1 In addition to the re
10、quirements of this specification, allrequirements of the current edition of Specification A555/A555M shall apply. Failure to comply with the generalrequirements of Specification A555/A555M constitutes non-conformance with this specification.5. Manufacture5.1 Types 302 Class 1, 304, 305, 316, 321, 34
11、7, UNSS20230, and Grades S20430 and XM-28 shall be cold drawn toproduce the required mechanical properties.5.2 Type 631, Type 302 Class 2, and Grade XM-16 shall befurnished in the cold-drawn condition ready for fabrication.Following fabrication Type 631 and Grade XM-16 shall be ageor precipitation h
12、ardened to produce their maximum strengthproperties. The tensile strengths to be obtained following theprescribed heat treatment are shown in Table 2 and Table 3 forhardened wire. Type 302 Class 2 shall be stress relievedfollowing fabrication and meet the requirements shown inTable 4. The nominal as
13、-drawn tensile strengths are providedas a guide for the spring manufacturer.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current editio
14、n approved Sept. 1, 2018. Published September 2018. Originallyapproved in 1947. Last previous edition approved in 2017 as A313/A313M 17.DOI: 10.1520/A0313_A0313M-18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Bo
15、ok of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.*A Summary of Changes section appears at the end of this standardCopyright
16、ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International S
17、tandards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.3 Grade S30151 shall be either cold drawn or cold drawnand heat treated to produce the required mechanical properties.6. Chemical Composition6.1 The steel shall conform to the r
18、equirements as tochemical composition prescribed in Table 1.6.2 Methods and practices relating to chemical analysisrequired by this specification shall be in accordance with TestMethods, Practices, and Terminology A751.7. Mechanical Requirements7.1 Tensile Properties:7.1.1 Types 302 Class 1 and 304
19、shall conform to therequirements shown in Table 5.7.1.2 Types 305, 316, 321, and 347 shall conform to therequirements shown in Table 6.7.1.3 Type 631 shall conform to the requirements shown inTable 2 when heat treated 900F 482C for 1 h and air cooled.TABLE 1 Chemical RequirementsUNSDesignationATypeC
20、omposition,B%Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Other ElementsAustenitic GradesS 20230 . . . 0.020.06 2.06.0 0.045 0.030 1.00 17.019.0 2.04.5 1.0 0.130.25 Cu 2.04.0S 20430 . . . 0.15 6.59.0 0.060 0.030 1.00 15.517.5 1.53.5 . . . 0.050.25 Cu 2.04.0S 24100 X
21、M-28 0.15 11.014.0 0.060 0.030 1.00 16.519.0 0.502.50 . . . 0.200.45 . . .S 30151 . . . 0.070.09 1.502.00 0.025 0.010 1.201.80 16.018.0 7.09.0 0.501.00 0.070.11 Cu 0.40S 30200 302 0.12 2.00 0.045 0.030 1.00 17.019.0 8.010.0 . . . 0.10 . . .S 30400 304 0.08 2.00 0.045 0.030 1.00 18.020.0 8.010.5 . .
22、. 0.10 . . .S 30500 305 0.12 2.00 0.045 0.030 1.00 17.019.0 10.513.0 . . . . . . . . .S 31600 316 0.07 2.00 0.045 0.030 1.00 16.518.0 10.513.5 2.002.50 0.10 . . .S 32100S 347003213470.080.082.002.000.0450.0450.0300.0301.001.0017.019.017.019.09.012.09.013.0.Ti 5(C+N) min10C min NbDAge-Hardenable Grad
23、esS 17700 631 0.09 1.00 0.040 0.030 1.00 16.018.0 6.57.8 . . . . . . Al 0.751.50S 45500 XM-16 0.05 0.50 0.040 0.030 0.50 11.012.5 7.59.5 0.50 . . . Ti 0.801.40Cu 1.502.50NbD0.100.50Austenitic-Ferritic GradesS32205 2205C0.030 2.00 0.030 0.020 1.00 22.023.0 4.56.5 3.003.50 0.140.20 . . .ADesignations
24、established in accordance with Practice E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).BMaximum unless range or minimum is indicated. Where ellipses (. . .) appear in this table, there is no requirement and the element need not be determined or reported.CCommon name, not a trade
25、mark, widely used, not associated with any one producer.DThe terms Columbium (Cb) and Niobium (Nb) both refer to the same element.TABLE 2 Tensile Strength Requirements for Type 631ADiameter, in. mmCold Drawn ConditionC, ksi MPaNominalCondition CH-900B, ksi MPamin max0.010 0.25 to 0.015 0.38, incl 29
26、5 2035 335 2310 365 2515Over 0.015 0.38 to 0.020 0.51, incl 290 2000 330 2275 360 2480Over 0.020 0.51 to 0.029 0.74, incl 285 1965 325 2240 355 2450Over 0.029 0.74 to 0.041 1.04, incl 275 1895 320 2205 350 2415Over 0.041 1.04 to 0.051 1.30, incl 270 1860 310 2135 340 2345Over 0.051 1.30 to 0.061 1.5
27、5, incl 265 1825 305 2100 335 2310Over 0.061 1.55 to 0.071 1.80, incl 257 1770 297 2050 327 2255Over 0.071 1.80 to 0.086 2.18, incl 255 1760 292 2015 322 2220Over 0.086 2.18 to 0.090 2.29, incl 245 1690 282 1945 312 2150Over 0.090 2.29 to 0.100 2.54, incl 242 1670 279 1925 309 2130Over 0.100 2.54 to
28、 0.106 2.69, incl 238 1640 274 1890 304 2095Over 0.106 2.69 to 0.130 3.30, incl 236 1625 272 1875 302 2080Over 0.130 3.30 to 0.138 3.50, incl 230 1585 260 1795 290 2000Over 0.138 3.50 to 0.146 3.71, incl 228 1570 258 1780 288 1985Over 0.146 3.71 to 0.162 4.11, incl 226 1560 256 1765 286 1970Over 0.1
29、62 4.11 to 0.180 4.57, incl 224 1545 254 1750 284 1960Over 0.180 4.57 to 0.207 5.26, incl 222 1530 252 1740 282 1945Over 0.207 5.26 to 0.225 5.72, incl 218 1505 248 1710 278 1915Over 0.225 5.72 to 0.306 7.77, incl 213 1470 242 1670 272 1875Over 0.306 7.77 to 0.440 11.2, incl 207 1425 235 1620 265 18
30、25Over 0.440 11.2 to 0.625 15.88, incl 203 1400 230 1585 260 1795AWhen wire is specified in straightened and cut lengths, the minimum tensile strength shall be 90 % of the values listed in the table.BAged at 900F 482C for 1 h and air cooled.A313/A313M 1827.1.4 Grade XM-16 shall conform to the requir
31、ementsshown in Table 3 when heat treated 850F 454C for12 h andair cooled.7.1.5 Grade XM-28 shall conform to the requirementsshown in Table 7.7.1.6 Type 302 Class 2 shall conform to the requirementsshown in Table 4.7.1.7 Grade S20430 shall conform to the requirementsshown in Table 8.7.1.8 Cold drawn
32、grade S30151 shall conform to the re-quirements shown in Table 9.7.1.9 Cold drawn grade UNS S20230 shall conform to therequirements shown in Table 10.7.1.10 Cold drawn, as delivered grade S32205 shall con-form to the requirements shown in Table 11 and Table 12.7.2 Wrap Test:7.2.1 Wire 0.162 in. 4.11
33、 mm and smaller in diameter shallwind on itself as an arbor without breaking.7.2.2 Wire larger than 0.162 in. 4.11 mm in diameter shallwind without breaking on a mandrel having a diameter twicethe diameter of the wire.7.3 Uniformity (Coil Test):7.3.1 In the as-cold drawn condition, a specimen coil s
34、hallbe wound on an arbor of the size specified in Table 13 to forma tightly wound coil.7.3.2 After winding, the specimen coil shall be stretched toa permanent set four times its as-wound length. After thistreatment, the specimen coil shall show uniform pitch with nosplits or fractures.7.4 CastA loop
35、 or ring shall be cut from the bundle andallowed to fall on the floor. The wire shall lie flat and not springup or show a wavy condition.7.5 Bend TestWhen specified in the purchase order, Types302, 304, 305, 316, 321, and 347 shall be tested by the bendtest. A piece not more than 10 in. 254 mm long
36、shall beselected from each test sample. These specimens shall be testedin a bending machine conforming substantially to Fig. 1. Bendsshall be made at as nearly a uniform rate as possible, notexceeding 50 bends per minute, and in no case shall the speedbe so great as to cause undue heating of the wir
37、e. The testspecimen shall be bent back and forth through a total angle of180 until failure occurs. Each 90 movement in eitherdirection shall be counted as one bend. The wire shallwithstand the minimum number of bends specified in Table 5and Table 6.8. Finish8.1 Stainless steel spring wire is supplie
38、d with differenttypes of finish such as bright, copper, lead, oxide, and other.9. Keywords9.1 austenitic-ferritic duplex; austenitic stainless steel; pre-cipitation hardening stainless steel; stainless steel; stainlesssteel spring wireTABLE 3 Tensile Strength Requirements for Grade XM-16ADiameter, i
39、n. mmCold Drawn, ksi MPaNominalAge HardenedB, ksi MPamin max0.010 0.25 to 0.040 1.02, incl 245 1690 320 2205 350 2415Over 0.040 1.02 to 0.050 1.27, incl 235 1620 310 2135 340 2345Over 0.050 1.27 to 0.060 1.52, incl 225 1550 305 2100 335 2310Over 0.060 1.52 to 0.075 1.90, incl 220 1515 295 2035 325 2
40、240Over 0.075 1.90 to 0.085 2.16, incl 215 1480 290 2000 320 2205Over 0.085 2.16 to 0.095 2.41, incl 210 1450 285 1965 315 2170Over 0.095 2.41 to 0.110 2.79, incl 200 1380 278 1915 308 2125Over 0.110 2.79 to 0.125 3.17, incl 195 1345 272 1875 302 2080Over 0.125 3.17 to 0.150 3.81, incl 190 1310 265
41、1825 295 2035Over 0.150 3.81 to 0.500 12.7, incl 180 1240 260 1795 290 2000AWhen wire is straightened and cut lengths, the minimum tensile strength shall be 90 % of the values listed in the table.BAged at 850F 454C for12 h and air cooled.TABLE 4 Tensile Strength Requirement for Type 302 Class 2Diame
42、ter, in. mmksi MPaCold DrawnNominalStress RelievedAmin max0.050 1.30 to 0.1604.00, incl290 2000 290 2000 340 2345AStress relieved at 800 to 850F 430 to 455C for12 h and air cooled.A313/A313M 183TABLE 5 Tensile Strength Requirements for Types 302 Class 1and 304ADiameter, in. mmBend TestMinimumNumber
43、ofBendsksi MPamin maxUp to 0.009 0.23, incl . . . 325 2240 355 2450Over 0.009 0.23 to 0.010 0.25, incl . . . 320 2205 350 2415Over 0.010 0.25 to 0.011 0.28, incl . . . 318 2190 348 2400Over 0.011 0.28 to 0.012 0.30, incl . . . 316 2180 346 2385Over 0.012 0.30 to 0.013 0.33, incl . . . 314 2165 344 2
44、370Over 0.013 0.33 to 0.014 0.36, incl . . . 312 2150 342 2360Over 0.014 0.36 to 0.015 0.38, incl . . . 310 2135 340 2345Over 0.015 0.38 to 0.016 0.41, incl . . . 308 2125 338 2330Over 0.016 0.41 to 0.017 0.43, incl . . . 306 2110 336 2315Over 0.017 0.43 to 0.018 0.46, incl . . . 304 2095 334 2300Ov
45、er 0.018 0.46 to 0.020 0.51, incl . . . 300 2070 330 2275Over 0.020 0.51 to 0.022 0.56, incl . . . 296 2040 326 2250Over 0.022 0.56 to 0.024 0.61, incl . . . 292 2015 322 2220Over 0.024 0.61 to 0.026 0.66, incl 8 291 2005 320 2205Over 0.026 0.66 to 0.028 0.71, incl 8 289 1995 318 2190Over 0.028 0.71
46、 to 0.031 0.79, incl 8 285 1965 315 2170Over 0.031 0.79 to 0.034 0.86, incl 8 282 1945 310 2135Over 0.034 0.86 to 0.037 0.94, incl 8 280 1930 308 2125Over 0.037 0.94 to 0.041 1.04, incl 8 275 1895 304 2095Over 0.041 1.04 to 0.045 1.14, incl 8 272 1875 300 2070Over 0.045 1.14 to 0.050 1.27, incl 8 26
47、7 1840 295 2035Over 0.050 1.27 to 0.054 1.37, incl 8 265 1825 293 2020Over 0.054 1.37 to 0.058 1.47, incl 7 261 1800 289 1990Over 0.058 1.47 to 0.063 1.60, incl 7 258 1780 285 1965Over 0.063 1.60 to 0.070 1.78, incl 7 252 1735 281 1935Over 0.070 1.78 to 0.075 1.90, incl 7 250 1725 278 1915Over 0.075 1.90 to 0.080 2.03, incl 7 246 1695 275 1895Over 0.080 2.03 to 0.087 2.21, incl 7 242 1670 271 1870Over 0.087 2.21 to 0.095 2.41, incl 7 238 1640 268 1850Over 0.095 2.41 to 0.105 2.67, incl 5 232 1600 262 1805Over 0.10
