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Grade A269 TP304L
USA UNS S30403
Corresponding Standard ASTM A269/A269M-2025
Seamless and Welded Austenitic Stainless Steel Tubing for General Service
Classification Austenitic Stainless Steel
A269 TP304L Chemical Element Composition Content (%)
Component C ① Si Mn P S Cr Ni
Minimum Value - - - - - 18 8
Maximum Value 0.035 1 2 0.045 0.03 20 12
① For small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040 % is necessary in grades TP 304L. Small outside diameter tubes are defined is those with less than 0.500 in. [12.7 mm] in outside diameter and light walls are those less than 0.049 in. [1.2 mm] in minimum wall thickness.
A269 TP304L Mechanical Properties
Heat Treatment or Condition
Hardness
HBW
Austenitizing Temperature ≥1040℃ ≤192
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 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
3 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
A269TP304L Corresponding Standards(Same grade name, different standards)
1 ASTM A269/A269M-2014
A269 TP304L S30403
2 ASTM A269/A269M-2025
A269 TP304L S30403

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