Grade 304
USA UNS S30400
Corresponding Standard ASTM A313/A313M-2018(R2025)
Stainless Steel Spring Wire
Classification Austenitic Stainless Steel
Properties High Elasticity Corrosion Resistance Good Weldability
304 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni N
Minimum Value - - - - - 18 8 -
Maximum Value 0.08 1 2 0.045 0.03 20 10.5 0.1
304 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa
d≤0.23 Cold Drawing 2240~2450
0.23<d≤0.25 Cold Drawing 2205~2415
0.25<d≤0.28 Cold Drawing 2190~2400
0.28<d≤0.3 Cold Drawing 2180~2385
0.3<d≤0.33 Cold Drawing 2165~2370
0.33<d≤0.36 Cold Drawing 2150~2360
0.36<d≤0.38 Cold Drawing 2135~2345
0.38<d≤0.41 Cold Drawing 2125~2330
0.41<d≤0.43 Cold Drawing 2110~2315
0.43<d≤0.46 Cold Drawing 2095~2300
0.46<d≤0.51 Cold Drawing 2070~2275
0.51<d≤0.56 Cold Drawing 2040~2250
0.56<d≤0.61 Cold Drawing 2015~2220
0.61<d≤0.66 Cold Drawing 2005~2205
0.66<d≤0.71 Cold Drawing 1995~2190
0.71<d≤0.79 Cold Drawing 1965~2170
0.79<d≤0.86 Cold Drawing 1945~2135
0.86<d≤0.94 Cold Drawing 1930~2125
0.94<d≤1.04 Cold Drawing 1895~2095
1.04<d≤1.14 Cold Drawing 1875~2070
1.14<d≤1.27 Cold Drawing 1840~2035
1.27<d≤1.37 Cold Drawing 1825~2020
1.37<d≤1.47 Cold Drawing 1800~1990
1.47<d≤1.6 Cold Drawing 1780~1965
1.6<d≤1.78 Cold Drawing 1735~1935
1.78<d≤1.9 Cold Drawing 1725~1915
1.9<d≤2.03 Cold Drawing 1695~1895
2.03<d≤2.21 Cold Drawing 1670~1870
2.21<d≤2.41 Cold Drawing 1640~1850
2.41<d≤2.67 Cold Drawing 1600~1805
2.67<d≤2.92 Cold Drawing 1565~1770
2.92<d≤3.17 Cold Drawing 1530~1745
3.17<d≤3.43 Cold Drawing 1495~1710
3.43<d≤3.76 Cold Drawing 1450~1660
3.76<d≤4.11 Cold Drawing 1415~1620
4.11<d≤4.5 Cold Drawing 1365~1570
4.5<d≤4.88 Cold Drawing 1335~1550
4.88<d≤5.26 Cold Drawing 1295~1515
5.26<d≤5.72 Cold Drawing 1255~1475
5.72<d≤6.35 Cold Drawing 1205~1415
6.35<d≤7.06 Cold Drawing 1160~1365
7.06<d≤7.77 Cold Drawing 1110~1325
7.77<d≤8.41 Cold Drawing 1070~1280
8.41<d≤9.19 Cold Drawing 1035~1240
9.19<d≤10.00 Cold Drawing 1000~1205
10.00<d≤11.12 Cold Drawing 965~1170
11.12<d≤12.7 Cold Drawing 930~1140
d>12.7 Cold Drawing 895~1105
1 Approximate Comparison Table Austenitic Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr19Ni9 S30408 304 SUS 304 STS 304 304 S30400 X5CrNi 18-10 4301-304-00-I X5CrNi 18-10
(X5CrNi 18-9)
1.4301 Z6CN 18-09 X5CrNi 18-10 1.4301 08Х18Н10 2332
2333
304S15
2 Approximate Comparison Table Austenitic Heat-Resistant Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
06Cr19Ni10
(0Cr18Ni9)
S30408 304 SUS 304 STS 304 304 S30400 X5CrNi 18-10 X5CrNi 18-10
(X5CrNi 18-9)
1.4301 Z6CN 18-09 X5CrNi 18-10 1.4301 08Х18Н10 2332
2333
304S15
3 Approximate Comparison Table Austenitic Stainless Steel
China Japan United States Germany France European Standard Russia Sweden United Kingdom
GB JIS ASTM DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
0Cr18Ni9 SUS304 304
304N
X5CrNi18-10
X5CrNi18-9
1.4301 X5CrNi18-10
Z5CN18-09
Z6CN18-09
Z7CN18-09
X5CrNi18-10 1.4301 08KH18N10 2333
2333-02
304S15
304S31
4 Approximate Comparison Table Stainless Steels for Cold Heading and Cold Extruding
China Japan United States International Organization for Standardization European Standard
GB ISC JIS ASTM/AISI UNS ISO Numerical Grade EN Numerical Grade
06Cr19Ni10
(0Cr18Ni9)
S30408 SUS304 304 S30400 X5CrNi18-10 4301-304-00-I X5CrNi18-10 1.4301
304 Corresponding Standards(Same grade name, different standards)

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