Q245R - GB /T 713.2-2023

Grade	Q245R
Corresponding Standard	GB /T 713.2-2023 Steel Plate, Sheet and Strip for Pressure Equipments - Part 2: Non-Alloy And Alloy Steel with Specified Temperature Properties
Classification	Alloy Steel

Q245R Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	More
Minimum Value	-	-	0.5	-	-	-	-	-	-	-	-	-	Cu+Ni+Cr+Mo≤0.7
Maximum Value	0.2	0.35	1.1	0.025	0.01	0.3	0.3	0.3	0.08	0.03	0.05	0.05	Cu+Ni+Cr+Mo≤0.7

Q245R Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
3≤t≤16	Hot Rolled, Normalized Rolling or Normalizing	400~520	≥245	≥25	0°C ≥34
16＜t≤36	Hot Rolled, Normalized Rolling or Normalizing	400~520	≥235	≥25	0°C ≥34
36＜t≤60	Hot Rolled, Normalized Rolling or Normalizing	400~520	≥225	≥25	0°C ≥34
60＜t≤100	Hot Rolled, Normalized Rolling or Normalizing	390~510	≥205	≥24	0°C ≥34
100＜t≤150	Hot Rolled, Normalized Rolling or Normalizing	380~500	≥185	≥24	0°C ≥34
150＜t≤250	Hot Rolled, Normalized Rolling or Normalizing	370~490	≥175	≥24	0°C ≥34

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
Q245R GB/T 713-2008	SEV245 JIS G3124:2004	Gr.65(450) ASTM A515/A515M-2003	P265GH ISO 9328-2-2004	P265GH EN 10028-2-2003	1.0425	16ГС 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
Q245R GB/T 713.2-2023	SA516Gr.60 ASME Ⅱ-A-2021	P265GH ISO 9328-2018	P265GH EN 10028-2017

Q245R Corresponding Standards(Same grade name, different standards)

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