4CrW2Si-KunShan ShanChuan Mould Steel Co.,Ltd

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Third-and domestic and foreign steel mills to establish long-term friendly cooperative partnership: Japan's Hitachi Metals' Hitachi H1TACH1 special steel, Daido Steel Great DA1DO Special Steel, Japan SUS series stainless steel, Sweden UDDEHOLM one-hundred ASSAB tool steel, the German Sa Site special steel, Austria Bluff BOHLER tool steel, the United States, Fen cola FKL special steel and ALCOA" Aluminum, the Japanese high-cycle KOSHUHI special Steel, the German Sa Site special steel, special steel Austria Bluff and other foreign tool steel. Baoshan Iron and Steel Co., Ltd. and China simultaneously, Fushun Fushun Special Steel Co., Ltd., Changcheng Special Steel Co., Ltd. Wuyang Iron and Steel in the long-term cooperation.

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4CrW2Si

4 crw2si steel is on the basis of chromium silicon steel join a certain amount of tungsten steel, which formed due to join the tungsten help during quenching save more fine grain, it is possible in tempering state higher toughness. 4 crw2si steel but also has certain hardenability and the high temperature strength. More than the steel used in the manufacture of high impact load operating tools, such as pneumatic tools, chisel, cutting edge trimming compound die, die, punching and shearing tools such as cold cut with scissors, and some of the smaller hot-work die.

物理性能

　　4CrW2Si钢是临界温度示于表2-17-2。

　　4CrW2Si钢的临界温度

临界点	Ac1	Ac3	Ms
温度（近似值）/℃	780	840	315

化学成分

　　4CrW2Si钢的化学成分示于表2-17-1。

　　4CrW2Si钢化学成分（GB/T1299—2000）w/%

C	Si	Mn	Cr	W	P	S
0.35~0.45	0.80~1.10	≤0.40	1.00~1.30	2.00~2.50	≤0.030	≤0.030

　　热加工

　　4CrW2Si钢的热加工工艺示于表2-17-3。

　　4CrW2Si钢的热加工工艺

项目	加热温度/℃	开锻温度/℃	终锻温度/℃	冷却方式
钢锭钢坯	1180~1220 1150~1180	1150~1180 1100~1140	≥850 ≥800	缓冷缓冷