What is the wear-resistance of nm500 equivalent

In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and wear-resistance of NM500 pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.

Structural steel plate wear-resistance of NM500 discount online 15*2320*9790, 12.5*2060*7410, 12*1540*5390, 12.5*1730*14930, 11*3910*6450, 17*2000*10650, 13.5*1905*8920, 6*1730*7840, 12.5*3790*8900, 12.5*3600*8810, 32*1301*6600, 12.5*1530*8000, 12*1590*9770, 16*2300*14200, 14.5*3690*10960, 20*2100*8950, 6*1800*4500, 14*1700*9200, 12.5*1790*15910, 5*1829*6096, 13*3200*10700, 9*1301*4000, 11*1510*5370, 12.5*1730*14770, 12.7*1829*6096, 13*2970*9800, 13.5*2890*5350, 12.5*2145*10360, 14*1860*13880, 24*2715*7800.

wear-resistance of NM500, wear-resistant plate refers to the low-alloy steel plate that is hardened by quenching during the rolling process or the low-alloy steel plate is heat treated and hardened. The hardness is generally HB350-500. The wear-resistant layer of the bimetal wear-resistant plate is of high alloy composition. There are a large number of high-hardness alloy carbides (about HV1600) embedded in the matrix in the metallographic structure, which are the main carbides that play a role in anti-wear. The actual micro hardness of the wear-resistant layer is much higher than the measured macro hardness, and its strengthening method is the same as that of cemented carbide.

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