Q235B U12355 C3 Q235BZ - GB /T 3274-2017

Grade	Q235B
China ISC	U12355
Other Names
Old Grade
Corresponding Standard	GB /T 3274-2017 Hot-Rolled Plates, Sheets and Strips of Carbon Structural Steels and High Strength Low Alloy Structural Sheets
Brand/Supplier	-> BAOSTEEL
Classification	Carbon Steel
Properties	Machinability Weldability Carburizing Ability

Q235B Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	As	N
Minimum Value	-	-	-	-	-	-	-	-	-	-
Maximum Value	0.2	0.35	1.4	0.045	0.045	0.3	0.3	0.3	0.08	0.008

Q235B Mechanical Properties

thickness(diameter) t(d) mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
≤16	370~500	≥235	≥26
＞16～40	370~500	≥225	≥26
＞40～60	370~500	≥215	≥25
＞60～100	370~500	≥215	≥24
＞100～150	370~500	≥195	≥22
＞150～200	370~500	≥185	≥21

1 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China

Taiwan, China

Japan

South Korea

United States

International Organization for Standardization

Germany

France

Russia

Sweden

United Kingdom

ISC

CNS

JIS

ASTM

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

BS EN/BS

Q235A
Q235B
Q235C
Q235D
(A3)
(C3)

U12352
U12355
U12358
U12359

SS400

SS400
(SS41)

SS400

A570 Gr.A
A570 Gr.D
A283M Gr.D

K02501
K02502

Fe360A
Fe360D

S235JR
S235JRG1
S235JRG2
(St37-2)
(USt37-2)
(RSt37-2)

1.0037
1.0036
1.0038

S235JR
S235JRG1
S235JRG2
(E24-2)
(E24-2NE)

Ст3кп-2
Ст3кп-3
Ст3кп-4
БСт3кп-2

1311
1312

S235JR
S235JRG1
S235JRG2
(40B)
(C)

2 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China	International Organization for Standardization	European Standard
GB	ISO	EN	Numerical Grade
Q235B	S235B	S235JRC	1.0122

3 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

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
Q235A Q235B Q235D	SM400A SS400	1015 A283C GradeC GradeD SSGrade33	E235B Fe360B	RSt37-2 St37-2	E24-2	S235JR Fe360B① Fe360BFN① S235JRG2①	1.0038(dubl)	St2ps St2sp St3ps St3sp	1311 1312	40A 40B

4 Approximate Comparison Table Carbon Structural Steel and Engineering Steel

China		Japan	United States	International Organization for Standardization	European Standard
GB	ISC	JIS	ASTM/AISI	ISO	EN	Numerical Grade
Q235B (GB/T 700-2006)	U12355	SS400 (JIS G3101:2004) (JIS G3106:2004)	Gr.65[240] (ASTM A573/A573M:2000)	E235B (ISO 630:1995)	S235JR (EN 10025-2:2004)	1.0038

Q235B Corresponding Standards(Same grade name, different standards)

1	GB /T 700-2006
	Q235B U12355 (C3) Q235BZ
2	GB /T 3274-2017
	Q235B U12355 (C3) Q235BZ
3	GB /T 34199-2017
	Q235B

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