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发明公开
CN106967930A 一种高耐热性、高稳定性和高韧性的模具钢及其制造工艺 有权 质押

一种高耐热性、高稳定性和高韧性的模具钢及其制造工艺
摘要：
本发明涉及一种高耐热性、高稳定性和高韧性的热作模具钢及其制造工艺，按重量百分比计，其基体由如下组分组成：C 0.37‑0.42％，Si 0.40‑0.60％，Mn 0.38‑0.55％，Cr 4.50‑5.50％，Ni 0.08‑0.20％，Mo 1.40‑1.80％，V 0.40‑0.80％，Nb 0.01‑0.03％，Ti 0.02‑0.05％，Os 0.01‑0.03％，La 0.04‑0.06％，Co 0.006‑0.012％，W 0.005‑0.010％，Cu≤0.06％，S≤0.005％，P≤0.015％，余量为Fe，本发明的热作模具钢具有优异的中心部开裂性，耐热软化性良好，能够保持长时间的高硬度，热稳定性好，导热性好。
摘要（英）：

The invention relates to die steel with high heat resistance, high stability and high tenacity and a manufacturing technology of the die steel. A base body of the die steel is prepared from 0.37-0.42% of C, 0.40-0.60% of Si, 0.38-0.55% of Mn, 4.50-5.50% of Cr, 0.08-0.20% of Ni, 1.40-1.80% of Mo, 0.40-0.80% of V, 0.01-0.03% of Nb, 0.02-0.05% of Ti, 0.01-0.03% of Os, 0.04-0.06% of La, 0.006-0.012% of Co, 0.005-0.010% of W, 0.06% or smaller of Cu, 0.005% or smaller of S, 0.015% or smaller of P and the balance Fe. The hot work die steel has the excellent center cracking property, is good in heat resistance and softening property, can keep high hardness for a long time, and is good in heat stability and heat conductivity.

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