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Grade SUS 305
Other Names
Corresponding Standard JIS G 4305-2021
Cold-rolled stainless steel plate, sheet and strip
Classification Austenitic Stainless Steel
Properties Corrosion Resistance
SUS 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
①Where necessary, –CP may be attached after the above symbol of grade to indicate that the product is a plate. Example SUS 310L-CP
②Where necessary, –CS may be attached after the above symbol of grade to indicate that the product is a strip. Example SUS304-CS
SUS 305 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
Solid Solution ≥480 ≥175 ≥40 ≤187
1 Approximate Comparison Table
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 Stainless steels for cold heading and cold extruding
China Japan South Korea United States International Organization for Standardization Germany United Kingdom
GB JIS KS ASTM/AISI ISO DIN EN/DIN BS EN/BS
1Cr18Ni12 SUS305 STS305 305 X6CrNi18-12 X5CrNi18-12 305S19
3 Approximate Comparison Table
China Japan United States International Organization for Standardization Germany France Russia United Kingdom
GB JIS ASTM/AISI ISO DIN EN/DIN NF EN/NF GOST BS EN/BS
1Cr18Ni12 SUS305 305 13 X2CrNiNi810 Z8CN18.12 12X18H12T 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
SUS305 Corresponding Standards(Same grade name, different standards)
1 JIS
SUS305
2 JIS G 4303-2005
SUS 305
3 JIS G 4304-2005
SUS 305 SUS 305-HP SUS 305-HS
4 JIS G 4315-2000
SUS 305
5 JIS G 4308-2013
SUS 305
6 JIS G 4309-2013
SUS 305 SUS 305-W1
7 JIS G 4315-2013
SUS305 SUS305-WSA
8 JIS G 4318-2016
SUS 305
9 JIS G 4305-2021
SUS 305 SUS 305-CP SUS 305-CS

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