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NM400 Wear-Resistant Steel Plate Hardness

NM400 Wear-Resistant Steel Plate Hardness

NM400 wear-resistant steel plate is widely used in engineering machinery, mining machinery, coal mining machinery, environmental protection machinery, metallurgical machinery and other product parts, excavators, loaders, bulldozer buckets, blades, side blades, blades. NM400 wear-resistant steel plates hardness value range 360-420.
The hardness is divided into: Rockwell hardness, Brinell hardness, Vickers hardness, Richter hardness, Shore hardness, Barcol hardness, Knoop hardness, and Vickers hardness. Vickers hardness is expressed in HV, Rockwell hardness can be divided into HRA, HRB, HRC, HRD, Brinell hardness expressed as HB [N (kgf / mm2)] (HBS \ HBW) (refer to GB/T231-1984), production The Brinell hardness method is commonly used to determine the hardness of annealed, normalized and quenched steel. It is not a simple physical concept, but a comprehensive index of mechanical properties such as elasticity, plasticity, strength and toughness. The hardness test can be divided into static pressure method (such as Brinell hardness, Rockwell hardness, Vickers hardness, etc.), scratch method (such as Mohs hardness), rebound method (such as Shore hardness) according to different test methods. Various methods such as microhardness and high temperature hardness.
NM400 wear-resistant steel plate hardness test: Milling 1.0-2.5 mm on the surface of the steel sheet, and then performing hardness test on this surface. It is generally recommended that you mill out 2.0mm for hardness testing.

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