Q400GMDR - GB /T 713.5-2023

Grade	Q400GMDR
Corresponding Standard	GB /T 713.5-2023 Steel Plate, Sheet and Strip for Pressure Equipments— Part 5: High Manganese Steel with Specified Low Temperature Properties
Classification	Alloy Steel

Q400GMDR Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	N	B
Minimum Value	0.35	0.1	22.5	-	-	3	0.3	-	-
Maximum Value	0.55	0.5	25.5	0.02	0.005	4	0.7	0.05	0.005

• To improve the performance of steel, other alloying elements other than those in the Table , such as Ni, Mo, Nb, V, Ti, Al, etc., can be added, with Ni≤1.0%, Mo≤0.30%, Nb+V+Ti≤0.30%, and Alt≤0.10%. The content of the corresponding elements should be noted in the quality certificate. When Ni≥0.30%, Cu can be lower than 0.30%

Q400GMDR Mechanical Properties

Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
800~950	≥400	≥35	-196°C ≥60

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