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Home Material GB /T 4240-2019
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Grade 20Cr13
China ISC S42020
Old Grade
Corresponding Standard GB /T 4240-2019
Stainless steel wires
Classification Martensitic Stainless Steel
20Cr13 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni
Minimum Value 0.16 - - - - 12 -
Maximum Value 0.25 1 1 0.04 0.03 14 0.6
20Cr13 Mechanical Properties
diameter
d
mm		 Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Elongation or Extension Rate
δ
%
1≤d≤3 Soft 500~750 ≥15
3＜d≤16 Soft 480~700 ≥15
1≤d≤3 Light Drawing 600~850
3＜d≤6 Light Drawing 580~820
6＜d≤16 Light Drawing 550~800
①soft - Wire is subjected to bright heat treatment, or after heat treatment, it undergoes pickling or similar processes to remove surface scale.
②Lightly drawn- Wire is drawn to finished dimensions with a small reduction in cross-section after heat treatment.
③Cold drawn - Wire undergoes conventional drawing after heat treatment, which is the process of forming at room temperature through methods such as die drawing or roll drawing.
1 Approximate Comparison Table
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
20Cr13
(2Cr13) 		S42020 420J1 SUS 420J1 STS 420J1 420 S42000 X20Cr 13
4
(ISO 683-13-1986) 		4021-420-00-I X20Cr 13 1.4021 Z20C 13 X20Cr 13 1.4021 20Х13 2303 420S37
2 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
20Cr13
(2Cr13) 		S42020 420J1 SUS 420J1 STS 420J1 420 S42000 X20Cr 13 X20Cr 13 1.4021 420F 20
Z20C 13 		X20Cr 13 1.4021 20Х13 420S37
3 Approximate Comparison Table
China Japan United States Germany France European Standard Russia Sweden United Kingdom
GB JIS ASTM UNS DIN EN/DIN NF EN/NF EN Numerical Grade GOST SS BS EN/BS
20Cr13
2Cr13
X20Cr13 		SUS420J1 420 S42010
S42010 		X20Cr13 X20Cr13
Z20C13 		X20Cr13 1.4021 20KH13 2303 420S29
420S37
20Cr13 Corresponding Standards(Same grade name, different standards)
1 GB
20Cr13
2 GB /T 20878-2007
20Cr13 S42020 (2Cr13)
3 GB /T 1221-2007
20Cr13 S42020 (2Cr13)
4 GB /T 1220-2007
20Cr13 S42020 (2Cr13)
5 GB /T 4240-2019
20Cr13 S42020 (2Cr13)
6 GB /T 4356-2016
20Cr13 S42020 (2Cr13)
7 GB /T 3280-2015
20Cr13 S42020 (20Cr13)
8 GB /T 4237-2015
20Cr13 S42020 (20Cr13)
9 GB /T 8732-2014
20Cr13 S42020 (2Cr13)
10 GB /T 14975-2012
20Cr13 S42020 (2Cr13)
11 GJB 2294A-2014
20Cr13 (2Cr13)
12 GB /T 3098.24-2020
20Cr13 CH0 S42020
13 Q/RP 006-2018
20Cr13
14 JB /T 6908-2020
20Cr13 S42020
15 Q/RP 007-2018
20Cr13
16 GB /T 20878-2024
20Cr13 S42020 (2Cr13)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!