Q345R - GB 713-2014

Grade	Q345R
Corresponding Standard	GB 713-2014 Steel Plates for Boilers and Pressure Vessels
Classification	Carbon Steel

Q345R Chemical Element Composition Content (%)

Component	C ^①	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	Al ^③	More
Minimum Value	-	-	1.2	-	-	-	-	-	-	-	-	-	0.02	Cu+Ni+Cr+Mo≤0.70
Maximum Value	0.2	0.55	1.7	0.025	0.01	0.3	0.3	0.3	0.08	0.03	0.05	0.05	-	Cu+Ni+Cr+Mo≤0.70

1 Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	Japan	United States	International Organization for Standardization	European Standard		Russia
GB	JIS	ASTM	ISO	EN	Numerical Grade	GOST
Q345R GB/T 713-2008	SEV345 JIS G3124:2004	Grade B ASTM A737/A737M-1999	P355GH ISO 9328-2004	P355GH EN 10028-2-2003	1.0473	17Г1С GOST 5520-1979

2 Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	United States	International Organization for Standardization	European Standard
GB	ASTM	ISO	EN
Q345R GB/T 713.2-2023	SA516 Gr.70 ASME Ⅱ-2-2021	P355GH P355NH ISO 9328-2018	P355GH P355NH EN 10028-2017

Q345R Corresponding Standards(Same grade name, different standards)

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