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Grade 304
USA UNS S30400
Corresponding Standard ASTM A 314-2025
Standard Specification for Stainless Steel Billets and Bars for Forging
Classification Austenitic Stainless Steel
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
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)
1 ASTM A959-2004
304 S30400
2 ASTM A193/A193M-2001
304 A193 B8 Class 1 S30400
3 ASTM A240/240M-2018
304 S30400
4 ASTM A493-2009(2013)
304 S30400
5 SAE J467b-1956(R1968)
304
6 ASTM A276/A276M-2017
304 S30400
7 SAE AMS 5513H-2004
304
8 SAE AMS 5639J-2017
304 19Cr-10Ni
9 SAE AMS 5913B-2014
304 19Cr-9.2Ni
10 GB 2100-1980
304 ZG0Cr18Ni9Ti
11 ASTM A193/A193M-2019
304 A193 B8 Class 1 S30400
12 ASTM A320/A320M-2018
304 A320 B8 Class 1 S30400
13 ASTM A473-2018
304 S30400
14 SAE J405-2018
304 S30400
15 ASTM A313/A313M-2018
304 S30400
16 ASTM F899-2020
304 S30400
17 ASTM A493-2016
304 S30400
18 ASTM A240/A240M-2020
304 S30400
19 ASTM A193/A193M-2020
304 A193 B8 Class 1 S30400
20 ASTM A959-2019
304 S30400
21 ASTM A320/A320M-2021
304 A320 B8 Class 1 S30400
22 Q/BQB 4302-2009
304 SUS 304
23 ASTM A479/A479M-2018
304 S30400
24 GB /T 41157.3-2022
304 06Cr19Ni10
25 Q/YT 102-2019
304 06Cr19Ni9
26 ASTM A194/A194M-2023
304 A194 Grade 8 S30400
27 ASTM A403/A403M-2022
304 WP304 S30400
28 CNS 3477-2016
304
29 ASTM A666/A666M-2024
304 S30400
30 ASME SA-666-2023
304 S30400
31 ASME SA-240/SA-240M-2023
304 S30400
32 ASTM A 314-2025
304 S30400

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