07Ni5DR - GB /T 713.4-2023

Grade	07Ni5DR
Corresponding Standard	GB /T 713.4-2023 Steel Plate, Sheet and Strip for Pressure Equipments— Part 4: Nickel-Alloy Steels with Specified Low Temperature Properties
Classification	Alloy Steel

07Ni5DR Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	Nb	Al	More
Minimum Value	-	0.1	0.3	-	-	-	4.75	-	-	-	-	0.015	Cr+Mo+Cu≤0.5%
Maximum Value	0.1	0.35	0.8	0.015	0.005	0.25	5.25	0.35	0.1	0.05	0.08	-	Cr+Mo+Cu≤0.5%

• When the thickness is greater than 50 mm, the upper limit of C content can reach 0.12%.

07Ni5DR Mechanical Properties

thickness t mm	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
5≤t≤30	530~700	ReL ≥370	≥20	-120°C ≥80
30＜t≤50	530~700	ReL ≥360	≥20	-120°C ≥80
50＜t≤80	530~700	ReL ≥350	≥20	-120°C ≥80

• Transverse specimens are taken for tensile and impact tests.
• When the yield phenomenon is not obvious, Rp0.2 can be used to replace the lower yield strength ReL.

Approximate Comparison Table Pressure-Bearing Flat Steel

China	Japan	International Organization for Standardization	European Standard
GB	JIS	ISO	EN
07Ni5DR GB/T 713.4-2023	SL5N590 JIS G 3127-2021	X12Ni5 ISO 9328-4-2018	X12Ni5 EN 10028-4-2017

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