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Home Material ASTM A313/A313M-2018(R2025)
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Grade 305
USA UNS S30500
Corresponding Standard ASTM A313/A313M-2018(R2025)
Stainless Steel Spring Wire
Classification Austenitic Stainless Steel
305 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni
Minimum Value - - - - - 17 10.5
Maximum Value 0.12 1 2 0.045 0.03 19 13
305 Mechanical Properties
diameter
d
mm		 Heat Treatment or Condition
Tensile Strength
σb
Mpa
d≤0.25 Cold Drawing 1690~1895
0.25＜d≤0.38 Cold Drawing 1655~1860
0.38＜d≤0.61 Cold Drawing 1620~1825
0.61＜d≤1.04； Bending Test Count ≥8 Cold Drawing 1620~1825
1.04＜d≤1.19；Bending Test Count ≥8 Cold Drawing 1585~1790
1.19＜d≤1.37；Bending Test Count ≥8 Cold Drawing 1550~1760
1.37＜d≤1.57；Bending Test Count ≥7 Cold Drawing 1515~1725
1.57＜d≤1.83；Bending Test Count ≥7 Cold Drawing 1480~1690
1.82＜d≤2.03；Bending Test Count ≥7 Cold Drawing 1450~1655
2.03＜d≤2.34；Bending Test Count ≥7 Cold Drawing 1415~1620
2.34＜d≤2.67；Bending Test Count ≥5 Cold Drawing 1380~1585
2.67＜d≤3.05；Bending Test Count ≥5 Cold Drawing 1345~1550
3.05＜d≤3.76；Bending Test Count ≥3 Cold Drawing 1275~1480
3.76＜d≤4.22；Bending Test Count ≥3 Cold Drawing 1240~1450
4.22＜d≤4.5；Bending Test Count ≥3 Cold Drawing 1170~1380
4.5＜d≤5.26；Bending Test Count ≥1 Cold Drawing 1105~1310
5.26＜d≤5.72；Bending Test Count ≥1 Cold Drawing 1070~1275
5.72＜d≤6.35；Bending Test Count ≥1 Cold Drawing 1035~1240
6.35＜d≤7.92；Bending Test Count ≥1 Cold Drawing 965~1170
7.92＜d≤9.53；Bending Test Count ≥1 Cold Drawing 930~1140
9.53＜d≤12.7 Cold Drawing 895~1105
d＞12.7 Cold Drawing 860~1070
1 Approximate Comparison Table Austenitic Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
10Cr18Ni12 S30510 305 SUS 305 STS 305 305 S30500 X6CrNi 18-12 X5CrNi 18-12
(X5CrNi 19-11)
X4CrNi 18-12 		1.4303
1.4303 		Z8CN 18-12 X4CrNi 18-12 1.4303 12Х18Н12Т 305S19
2 Approximate Comparison Table Austenitic Stainless Steel
China Japan United States International Organization for Standardization European Standard
ISC JIS UNS ISO Numerical Grade Numerical Grade
S38148 SUSXM15J1 S30500 X6CrNiSi18-13-4 4884-305-00-X (1.4884)
3 Approximate Comparison Table Austenitic Stainless Steel
Japan United States France European Standard Russia United Kingdom
JIS ASTM NF EN/NF EN Numerical Grade GOST BS EN/BS
SUS305J1 305 Z1CN18-12
Z5CN18-11FF 		X4CrNi18-12 1.4303 06KH18N11 305S19
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
10Cr18Ni12
(1Cr18Ni12) 		S30510 SUS305 305 S30500 X6CrNi18-12 4303-305-00-I X6CrNi18-12 1.4303
305 Corresponding Standards(Same grade name, different standards)
1 ASTM A959-2004
305 S30500
2 ASTM A193/A193M-2001
305 A193 B8P Class 1D S30500
3 ASTM A240/240M-2018
305 S30500
4 GB /T 1220-2007
305 10Cr18Ni12 S30510 (1Cr18Ni12)
5 ASTM A493-2009(2013)
305 S30500
6 ASTM A276/A276M-2017
305 S30500
7 GB 2100-1980
305 ZG1Cr18Ni9Ti
8 ASTM A473-2018
305 S30500
9 SAE J405-2018
305 S30500
10 ASTM A313/A313M-2018
305 S30500
11 ASTM A493-2016
305 S30500
12 ASTM A240/A240M-2020
305 S30500
13 ASTM A959-2019
305 S30500
14 Q/YT 102-2019
305 03Cr18Ni12
15 ASTM A194/A194M-2023
305 A194 Grade 8P S30500
16 CNS 3477-2016
305
17 ASTM A 314-2025
305 S30500
18 ASTM A 473-2024(a)
305 S30500
19 ASTM A 493-2025
305 S30500
20 ASTM A194/A194M-2026
305 A194 Grade 8P S30500
21 ASTM A276/A276M-2025
305 S30500
22 ASTM A313/A313M-2018(R2025)
305 S30500
23 ASTM A473-2026
305 S30500
24 ASTM A478-1997(R2019)
305 S30500
25 ASTM A554-2026
305 S30500

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