As the hardness requirement increase, the heattreated steels should be considered, with the least expensive steel that satisfies the strength and wear requirements being.
The martensitic steel 15 was heattreated under high pressure in the CS-IB type hexahedron anvils press. The Vickers hardness of the sample was measured.
对原始组织为马氏体的冷轧15钢在CS - IB型六面顶压机上进行了高压热处理，测量试样的维氏硬度。
3
New forged austempering technology is used in steel spade heat treating for energy-saving and the quality of the treated spade is guaranteed in a retrofitted equipment.