NM400 Wear Resistant Steel Plate

NM400 is a high-strength wear-resistant steel plate with a nominal hardness of 400 HBW, manufactured according to GB/T 24186 standard. It provides outstanding wear resistance, good impact toughness, and excellent weldability — making it an ideal material for heavy-duty industries such as mining, construction, and cement production.

High Wear Resistance: Nominal hardness of 400 HBW for excellent abrasion protection.
Good Weldability: Easy to fabricate and weld using standard procedures.
High Strength and Toughness: Delivers both hardness and impact performance.
Extended Service Life: Reduces part replacement frequency and maintenance costs.
Versatile Application: Suitable for mining, construction, and heavy machinery.

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NM400 Steel Description

NM400 wear resistant steel plate is produced through controlled quenching and tempering to achieve uniform hardness and toughness.
It combines high hardness with good formability and weldability, allowing it to be easily fabricated into complex components.

Thanks to its excellent resistance to sliding and impact abrasion, NM400 performs exceptionally well in mining and construction environments.
Using NM400 in equipment like liners, buckets, and blades helps extend component life and reduce operational costs.

NM400 Technical Data Sheet

NM400 Chemical Composition
Element	C	Si	Mn	P (max)	S (max)	Cr	Mo	Ni
NM400	≤ 0.20	≤ 0.70	≤ 1.60	0.025	0.01	0.30–1.20	≤ 0.50	≤ 0.50

NM400 Mechanical Properties
Property	Unit	Typical Value
Hardness	HBW	360–440
Yield Strength	MPa	≥ 900
Tensile Strength	MPa	1100 – 1250
Elongation	%	≥ 12
Impact Energy (–20 °C)	J	≥ 30
Standard	—	GB/T 24186
Delivery Condition	—	Quenched & Tempered