1、Designation: A 313/A 313M 03Standard Specification forStainless Steel Spring Wire1This standard is issued under the fixed designation A 313/A 313M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number
2、 in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers austenitic and age-hardenablesta
3、inless steel round spring wire intended especially for themanufacture of springs.1.2 The values stated in inch-pound units or SI units are tobe regarded separately as the standard. Within the text andtables, the SI units are shown in brackets. The values stated ineach system are not exact equivalent
4、s; therefore, each systemmust be used independently of the other. Combining valuesfrom the two systems may result in nonconformance with thespecification.1.3 Unless the order specifies an “M” designation, thematerial shall be furnished to inch-pound units.2. Referenced Documents2.1 ASTM Standards:A
5、555/A 555M Specification for General Requirements forStainless Steel Wire and Wire Rods2A 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel Products2E 527 Practice for Numbering Metals and Alloys (UNS)32.2 Society of Automotive Engineers Standard:J 1086 Numbering Metals and
6、Alloys43. 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 (stainless steel s
7、pring 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 Supplementary requirements for government procure-ment, and3.1.8 Special requirements.NOTE 1A typical ordering description is as follows:2000 lb (1000 kg) Sta
8、inless 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 A 313, dated _.4. General Requirements for Delivery4.1 In addition to the requirements of this specification, allrequirements of the current edition of Sp
9、ecification A 555/A 555M shall apply. Failure to comply with the generalrequirements of Specification A 555/A 555M constitutes non-conformance with this specification.5. Manufacture5.1 Types 302 Class 1, 304, 305, 316, 321, 347, and GradesS20430 and XM-28 shall be cold drawn to produce therequired m
10、echanical 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 hardened to produce their maximum strengthproperties. The tensile strengths to be obtai
11、ned 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-drawn tensile strengths are providedas a guide for the spring manufacturer.6. Chemica
12、l Composition6.1 The steel shall conform to the requirements 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 A 751.7. Mechanical Requirements7.1 T
13、ensile Properties: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 Stainless Steel.Current edition approved May 10, 2003. Published June 2003. Originallyapproved
14、in 1947 . Last previous edition approved in 1998 as A 313/A 313M 98.2Annual Book of ASTM Standards, Vol 01.03.3Annual Book of ASTM Standards, Vol 01.01.4Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096.1*A Summary of Changes section appears at the end o
15、f this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.1.1 Types 302 Class 1 and 304 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
16、.3 Type 631 shall conform to the requirements shown inTable 2 when heat treated 900F 482C for 1 h and air cooled.7.1.4 Grade XM-16 shall conform to the requirementsshown 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
17、.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 8.7.2 Wrap Test:7.2.1 Wire 0.162 in. 4.11 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
18、 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 shallbe wound on an arbor of the size specified in Table 9 to forma tightly wound coil.7.3.2 After winding, the specimen
19、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 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
20、 wavy condition.TABLE 1 Chemical RequirementsUNS Desig-nationAType Composition,B%Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Other ElementsAustenitic GradesS 24100 XM-28 0.15 11.014.0 0.060 0.030 1.00 16.519.0 0.502.50 0.200.45S 30200 302 0.12 2.00 0.045 0.030 1.00
21、 17.019.0 8.010.0 0.10S 30400 304 0.08 2.00 0.045 0.030 1.00 18.020.0 8.010.5 0.10S 30500 305 0.12 2.00 0.045 0.030 1.00 17.019.0 10.513.0S 31600 316 0.07 2.00 0.045 0.030 1.00 16.518.0 10.513.5 2.002.50 0.10S 32100S 347003213470.080.082.002.000.0450.0450.0300.0301.001.0017.019.017.019.09.012.09.013
22、.0Ti 53C min(Cb + Ta) 103C minAge-Hardenable GradesS 17700S 45500631XM-160.090.051.000.500.0400.0400.0300.0301.000.5016.018.011.012.56.50 7.87.50 9.5 0.50 maxAl 0.751.50Ti 0.801.40Cu 1.502.50(Cb + Ta) 0.100.50S 20430 . . . 0.15 6.59.0 0.060 0.030 1.00 15.517.5 1.50 3.50 0.050.25 Cu 2.04.0ANew design
23、ations established in accordance with Practice E 527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).BMaximum unless range is shown.TABLE 2 Tensile Strength Requirements for Type 631ADiameter, in. mm Cold Drawn ConditionC, ksi MPaNominalCondition CH-900B, ksi MPamin max0.010 0.25 to 0
24、.015 0.38, incl 295 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
25、 1.30 to 0.061 1.55, 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 2130
26、Over 0.100 2.54 to 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 256 176
27、5 286 1970Over 0.162 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 14
28、25 235 1620 265 1825Over 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.A 313/A 313M 0327.5 Bend TestWhen specifi
29、ed 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 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
30、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 wire. 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 ben
31、d. The wire shallwithstand the minimum number of bends specified in Table 5and Table 6.8. Finish8.1 Stainless steel spring wire is supplied with differenttypes of finish such as bright, copper, lead, oxide, and other.9. Keywords9.1 austenitic stainless steel; precipitation hardening stain-less steel
32、; stainless steel spring wireTABLE 3 Tensile Strength Requirements for Grade XM-16ADiameter, in. mm Cold 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
33、.52, incl 225 1550 305 2100 335 2310Over 0.060 1.52 to 0.075 1.90, incl 220 1515 295 2035 325 2240Over 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
34、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 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
35、850F 454C for12 h and air cooled.TABLE 4 Tensile Strength Requirement for Type 302 Class 2Diameter, 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.A 313/A 313M 033TABLE 5 T
36、ensile Strength Requirements for Types 302 Class 1 and 304ADiameter, in. mmBend Test Minimum Number 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
37、 to 0.012 0.30, incl . . . 316 2180 346 2385Over 0.012 0.30 to 0.013 0.33, incl . . . 314 2165 344 2370Over 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
38、.017 0.43, incl . . . 306 2110 336 2315Over 0.017 0.43 to 0.018 0.46, incl . . . 304 2095 334 2300Over 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
39、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 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
40、 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 8 267 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
41、.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 5 232 160
42、0 262 1805Over 0.105 2.67 to 0.115 2.92, incl 5 227 1565 257 1770Over 0.115 2.92 to 0.125 3.17, incl 5 222 1530 253 1745Over 0.125 3.17 to 0.135 3.43, incl 3 217 1495 248 1710Over 0.135 3.43 to 0.148 3.76, incl 3 210 1450 241 1660Over 0.148 3.76 to 0.162 4.11, incl 3 205 1415 235 1620Over 0.162 4.11
43、 to 0.177 4.50, incl 3 198 1365 228 1570Over 0.177 4.50 to 0.192 4.88, incl 1 194 1335 225 1550Over 0.192 4.88 to 0.207 5.26, incl 1 188 1295 220 1515Over 0.207 5.26 to 0.225 5.72, incl 1 182 1255 214 1475Over 0.225 5.72 to 0.250 6.35, incl 1 175 1205 205 1415Over 0.250 6.35 to 0.278 7.06, incl 1 16
44、8 1160 198 1365Over 0.278 7.06 to 0.306 7.77, incl 1 161 1110 192 1325Over 0.306 7.77 to 0.331 8.41, incl 1 155 1070 186 1280Over 0.331 8.41 to 0.362 9.19, incl 1 150 1035 180 1240Over 0.362 9.19 to 0.394 10.00, incl 1 145 1000 175 1205Over 0.394 10.00 to 0.438 11.12, incl 1 140 965 170 1170Over 0.4
45、38 11.12 to 0.500 12.70, incl 1 135 930 165 1140Over 0.500 12.70 130 895 160 1105AWhen wire is specified in straightened and cut lengths, the minimum tensile strength shall be 90 % of the values listed in the table.A 313/A 313M 034TABLE 6 Tensile Strength Requirements for Types 305, 316, 321, and 34
46、7ADiameter, in. mm Bend Test Minimum Number ofBendsksi MPamin maxUp to 0.010 0.25, incl . . . 245 1690 275 1895Over 0.010 0.25 to 0.015 0.38, incl . . . 240 1655 270 1860Over 0.015 0.38 to 0.024 0.61, incl . . . 235 1620 265 1825Over 0.024 0.61 to 0.041 1.04, incl 8 235 1620 265 1825Over 0.041 1.04
47、to 0.047 1.19, incl 8 230 1585 260 1790Over 0.047 1.19 to 0.054 1.37, incl 8 225 1550 255 1760Over 0.054 1.37 to 0.062 1.57, incl 7 220 1515 250 1725Over 0.062 1.57 to 0.072 1.83, incl 7 215 1480 245 1690Over 0.072 1.82 to 0.080 2.03, incl 7 210 1450 240 1655Over 0.080 2.03 to 0.092 2.34, incl 7 205 1415 235 1620Over
