13MnNiDR - GB /T 713.3-2023

Grade	13MnNiDR
Corresponding Standard	GB /T 713.3-2023 Steel Plate, Sheet and Strip for Pressure Equipments— Part 3: Low Alloy Steel with Specified Low Temperature Properties
Classification	Alloy Steel

13MnNiDR Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni	Mo	N	V	Nb	Al
Minimum Value	-	0.15	1.2	-	-	0.3	-	-	-	-	0.02
Maximum Value	0.16	0.5	1.6	0.015	0.005	0.8	0.08	0.012	0.05	0.05	-

• When acid-soluble aluminium (Als) is used instead of Alt, the Als content should be no less than 0.015%. When the Nb+V+Ti content in steel is ≥0.015%, the Al content is not required.

13MnNiDR Mechanical Properties

thickness t mm	Heat Treatment or Condition	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≤36	Normalizing or normalizing + tempering	490~610	ReL ≥345	≥22	-60°C ≥60
36＜t≤60	Normalizing or normalizing + tempering	490~610	ReL ≥335	≥22	-60°C ≥60
60＜t≤100	Normalizing or normalizing + tempering	490~610	ReL ≥325	≥22	-60°C ≥60

• When the yield phenomenon is not obvious, the specified plastic extension strength Rp0.2 is adopted.

Approximate Comparison Table Pressure-Bearing Flat Steel

China	European Standard
GB	EN
13MnNiDR GB/T 713.3-2023	13MnNi6-3 EN 10028-4-2017

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