06Ni7DR - GB /T 713.4-2023

Grade	06Ni7DR
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

06Ni7DR Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	Nb	Al
Minimum Value	-	0.05	0.3	-	-	-	6.5	-	-	-	-	0.015
Maximum Value	0.08	0.3	0.8	0.008	0.003	0.5	7.5	0.35	0.3	0.01	0.03	-

06Ni7DR 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	680~820	ReL ≥560	≥18	-196°C ≥80
30＜t≤50	680~820	ReL ≥550	≥18	-196°C ≥80
50＜t≤80	680~820	ReL ≥540	≥18	-196°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	United States	International Organization for Standardization
GB	JIS	ASTM	ISO
06Ni7DR GB/T 713.4-2023	SL7N590 JIS G 3127-2021	7%Ni ASTM A533/A533M-17	X6Ni7 ISO 9328-4-2018

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