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Grade X20Cr 13
European Standard Steel Grade 1.4021
Corresponding Standard EN 10250-4-1999
Classification Martensitic Stainless Steel
Properties Corrosion Resistance
X20Cr 13 Chemical Element Composition Content (%)
Component C Si Mn P S * Cr
Minimum Value 0.16 - - - - 12
Maximum Value 0.25 1 1.5 0.04 0.03 14
X20Cr 13 Mechanical Properties
thickness
t
mm		 Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW 		Impact Energy Absorption
KV2
J
- A ≤760 - - ≤230 -
t≤160 QT700 700~850 ≥500 ≥13 - ≥25
t≤160 QT800 800~950 ≥600 ≥12 - ≥20
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
X20Cr13 Corresponding Standards(Same grade name, different standards)
1 EN 10088-1-2005
X20Cr 13 1.4021
2 EN 10250-4-1999
X20Cr 13 1.4021
3 ISO TS 15510-2003
X20Cr13
4 DIN 17440-1972
X20Cr13 1.4021
5 EN 10088-3-2005
X20Cr 13 1.4021
6 EN 10088-3-2014
X20Cr 13 1.4021
7 GB /T 3098.24-2020
X20Cr13 CH0 402 1-420-00-l
8 ISO 15510-2014
X20Cr13 4021-420-00-I
9 DIN EN 10088-3-2014
X20Cr 13 1.4021
10 ISO 683-18-2014
X20Cr13 4021-420-00-I
11 DIN 17442-1977
X20Cr13 1.4021
12 NF A 35-590-1992
X20Cr13 (Z20C13)
13 NF EN 10088-2-2005
X20Cr13 1.4021
14 NF EN 10088-1-2005
X20Cr13 1.4021
15 IS 6603-2001
X20Cr13
16 DIN EN 10151-2002
X20Cr13 1.4021

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