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Grade 304L
USA UNS S30403
Corresponding Standard ASTM A959-2004
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification Austenitic Stainless Steel
Properties Corrosion Resistance Low-Temperature Toughness Impact Toughness Forgability Weldability
304L Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni
Minimum Value - - - - - 18 8
Maximum Value 0.03 1 2 0.045 0.03 20 12
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 Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST BS EN/BS
022Cr19Ni10
(00Cr19Ni10) 		S30403 304L SUS 304L STS 304L 304L S30403 X2CrNi 19-11
X2CrNi 18-9 		4306-304-03-I
4307-304-03-I 		X2CrNi 19-11
(X2CrNi 18-9) 		1.4306 Z2CN 18-10
Z2CN 18-09 		X2CrNi 19-11
X2CrNi 18-9 		1.4306
1.4307 		03Х18Н10 304S12
2 Approximate Comparison Table Austenitic Stainless Steel
Japan United States France European Standard Russia Sweden United Kingdom
JIS ASTM NF EN/NF EN Numerical Grade GOST SS BS EN/BS
SUS304L 304L Z2CN18
Z3CN18
Z3CN19-09 		X2CrNi18-9 1.4307 04KH18N10 2352 304S11
3 Approximate Comparison Table Austenitic Stainless Steel
Japan United States France European Standard Russia Sweden United Kingdom
JIS ASTM NF EN/NF EN Numerical Grade GOST SS BS EN/BS
SUS304L 304L Z2CN18-10
Z3CN18-10 		X2CrNi19-11 1.4306 03KH18N11 2352 304S11
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
022Cr19Ni10
(00Cr19Ni10) 		S30403 SUS304L 304L S30403 X2CrNi18-9 4307-304-03-I X2CrNi18-9 1.4307
5 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
022Cr19Ni10
(00Cr19Ni10) 		S30403 SUS304L 304L S30403 X2CrNi19-11 4306-304-03-I X2CrNi19-11 1.4306
304L Corresponding Standards(Same grade name, different standards)
1 ASTM A959-2004
304L S30403
2 ASTM A240/240M-2018
304L S30403
3 ASTM A493-2009(2013)
304L S30403
4 SAE J467b-1956(R1968)
304L
5 ASTM A276/A276M-2017
304L S30403
6 ASTM A473-2018
304L S30403
7 SAE J405-2018
304L S30403
8 ASTM A493-2016
304L S30403
9 ASTM A240/A240M-2020
304L S30403
10 ASTM A959-2019
304L S30403
11 Q/BQB 4302-2009
304L SUS 304L
12 ASTM A479/A479M-2018
304L S30403
13 Q/RP 006-2018
304L
14 Q/YT 102-2019
304L 022Cr19Ni9
15 ASTM A403/A403M-2022
304L WP304L S30403
16 Q/RP 007-2018
304L
17 ASTM A666/A666M-2024
304L S30403
18 ASME SA-666-2023
304L S30403
19 ASME SA-240/SA-240M-2023
304L S30403
20 ASTM A 314-2025
304L S30403

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