NM400 - GB /T 24186-2022

Grade	NM400
Corresponding Standard	GB /T 24186-2022 High Strength abrasion resistant steel plates for construction machine
Classification	Alloy Steel

NM400 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	Ti	B	Al
Minimum Value	-	-	-	-	-	-	-	-	-	0.0005	0.01
Maximum Value	0.3	0.7	1.6	0.025	0.01	1.2	0.7	0.5	0.05	0.006	-

NM400 Mechanical Properties

Thickness t mm	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %	Hardness HBW
t≤80	Transverse Tensile: 1200	Transverse Tensile: 10	Surface Hardness: 370~430HBW Center Section Hardness: 330~430HBW
80＜t≤120	Transverse Tensile: 1200	Transverse Tensile: 10	Surface Hardness: 360~440HBW Center Section Hardness: -

NM400 Corresponding Standards(Same grade name, different standards)

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