20 U20202 20# - GB /T 699-2015

Grade	20
China ISC	U20202
Other Names
Corresponding Standard	GB /T 699-2015 Quality carbon structure steels
Classification	Carbon Steel
Properties	Impact Toughness Forgability Weldability
Density	7.85 g/cm³

20 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.17	0.17	0.35	-	-	-	-	-
Maximum Value	0.23	0.37	0.65	0.035	0.035	0.25	0.3	0.25

20 Mechanical Properties

diameter(thickness) d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
d=25 (Sample size)	Normalizing	≥410	≥245	≥25	≥55	Unprocessed Steel ≤156

1 Approximate Comparison Table

China

Taiwan, China

Japan

South Korea

United States

Germany

France

Russia

Sweden

United Kingdom

ISC

CNS

JIS

ASTM/AISI

UNS

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

BS EN/BS

U20202

S20C

SM20C

1020

G10200

C22E
Ck22

1.1151

C22E
XC18

1435

C22E
070M20

2 Approximate Comparison Table

International Organization for Standardization	Germany	France	European Standard
ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade
C25R	Cm22	XC18u	C22R C22R	1.1149

3 Approximate Comparison Table

China	European Standard
GB	EN	Numerical Grade
20	P235TR1	1.0254

4 Approximate Comparison Table

China	Japan	United States	International Organization for Standardization	Germany		France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
20	SB410 SGV410 SPV235 SPV24	A285 A285Gr.C	P3	ASt35 HI StE255	1.0345	A37AP A37CP	P235GH	1.0345	12k	1330 1330-01	141-360 161Gr.360

5 Approximate Comparison Table

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

6 Approximate Comparison Table

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
20	SM490B	A537CL1	E355	StE355	A510AP E355R	P355N	1.0562	15GF	2106	223Gr.490 50DD

7 Approximate Comparison Table

China	Japan	United States	France	Russia	United Kingdom
GB	JIS	ASTM/AISI	NF EN/NF	GOST	BS EN/BS
20	S20C	1020	C20 XC18	20	040A20 050A20 060A20

20 Corresponding Standards(Same grade name, different standards)

1	GB /T 699-1999
	20 U20202 20#
2	ISO 4955-2005
	(20) X8NiCrAlTi32-21
3	GB /T 699-2015
	20 U20202 20#
4	GOST 1050-1988
	20
5	ISO 683-13-1986
	20
6	GB /T 17107-1997
	20
7	GB 6479-2013
	20 U20202
8	GB /T 8163-2018
	20
9	ISO 4955-2016
	(20) X8NiCrAlTi32-21 4876-088-00-I
10	GB /T 3078-2019
	20 20#
11	GB /T 710-2008
	20 U20202 20#
12	GB /T 711-2017
	20 20#
13	HB /Z 136-2000
	20
14	NB /T 47008-2017
	20
15	GB /T 13237-2013
	20
16	JB /T 6908-2020
	20 U20202
17	GB 3522-1983
	20

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