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Grade 1020
Corresponding Standard ASTM A1040-2010
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Carbon , Low-Alloy, and Alloy Steels
Classification Carbon Steel
1020 Chemical Element Composition Content (%)
Component C Mn P S Cu B
Minimum Value 0.18 0.3 - - 0.2 0.0005
Maximum Value 0.23 0.6 0.04 0.05 - 0.003
1 Approximate Comparison Table High-Quality Carbon Structural Steel
China Taiwan, China Japan South Korea United States Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
20 U20202 S20C S20C SM20C 1020 G10200 C22E
Ck22 		1.1151 C22E
XC18 		20 1435 C22E
070M20
2 Approximate Comparison Table
China Japan United States International Organization for Standardization Germany European Standard
GB ISC JIS ASTM ISO DIN EN/DIN W-Nr. EN Numerical Grade
ML20Al U40208 SWRCH20A 1020 CC21A
C20E2C 		C20C 1.0411 C20C
C20E2C 		1.0411
3 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization Germany European Standard
GB ISC JIS ASTM ISO DIN EN/DIN W-Nr. EN Numerical Grade
ML20 U40202 SWRCH20K 1020 CC21K C20C 1.0411 C20C 1.0411
4 Approximate Comparison Table High-Quality Carbon Structural Steel
China Japan United States International Organization for Standardization Germany European Standard Russia Sweden United Kingdom
GB JIS SAE ISO DIN EN/DIN W-Nr. EN Numerical Grade GOST SS BS EN/BS
20 S20C
S22C 		1020 C25 C22 1.0402 C22 1.0402 20 1450 070M20
5 Approximate Comparison Table Non-Alloy Steel for Quenching and Tempering
Japan United States Germany France European Standard Russia United Kingdom
JIS ASTM DIN EN/DIN NF EN/NF EN Numerical Grade GOST BS EN/BS
S20C 1020 Ck22 XC18 C22E 1.1151 20 070M20
CS22
6 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan South Korea United States International Organization for Standardization Germany United Kingdom
GB JIS KS ASTM ISO DIN EN/DIN BS EN/BS
ML20 SWRCH20K SWCH20K 1020 CC21A Cp22 0/4
7 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization European Standard
YB GB JIS ASTM ISO EN
QML20Al ML20Al SWRCH20A 1020 C20E2C C20E2C
8 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization European Standard
YB GB JIS ASTM ISO EN
QML20 ML20 SWRCH20K 1020 C20E2C C20E2C
1020 Corresponding Standards(Same grade name, different standards)
1 SAE
1020 1020
2 ASTM A29/A29M-2012
1020 G10200
3 SAE J 403-2001
1020 G10200
4 ASTM A1040-2010
1020
5 ASTM A510/A510M-2013
1020 G10200 1020
6 SAE J403-2014
1020 G10200
7 ASTM A29/A29M-2020
1020 G10200
8 ASTM A519/A519M-2024
1020
9 ASTM A853-2019
1020 G10200 1020
10 ASTM A659/A659M-2022
1020
11 ASTM A513/A513M-2025
1020
12 ASME SA-513-2023
1020

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