又色又爽又黄又粗暴视频,少妇做爰13p,日本精品一区二区三区四区,毛片免费一区二区三区,精品视频一区二区三区在线观看

首頁  - 產品展示

W4Mo3Cr4VSi(W4)高速工具鋼

W4Mo3Cr4VSi高速工具鋼 


W4Mo3Cr4VSi簡介:W4Mo3Cr4VSi低合金高(gao)(gao)速工(gong)具鋼,經濟型,具有(you)與通用高(gao)(gao)速鋼相當的高(gao)(gao)硬度(du)、高(gao)(gao)溫硬度(du)、強度(du)、韌性及耐磨性。

W4Mo3Cr4VSi對應(ying)牌號(hao):W4 (4341)


化學成分:

C(碳):0.88~0.98

W(鎢(wu)):3.5~4.5

Mo(鉬):2.5~3.5

Cr(鉻):3.8~4.4

V(釩(fan)):1.2~1.8

Si(硅(gui)):0.5~1.0

Mn(錳):0.2~0.4


W4Mo3Cr4VSi退火(huo)硬度: ≤ 255HB。

W4Mo3Cr4VSi用(yong)(yong)(yong)(yong)途:用(yong)(yong)(yong)(yong)W4Mo3Cr4VSi鋼(gang)制成(cheng)的(de)各(ge)種(zhong)刀(dao)具(ju)擁有與通用(yong)(yong)(yong)(yong)高速鋼(gang)近似的(de)優良(liang)的(de)切削性能(neng),可(ke)(ke)以(yi)替代通用(yong)(yong)(yong)(yong)高速鋼(gang)制作機(ji)(ji)用(yong)(yong)(yong)(yong)鋸條、鉆頭、木工(gong)刨刀(dao)、機(ji)(ji)械(xie)刀(dao)片等刀(dao)具(ju),也可(ke)(ke)用(yong)(yong)(yong)(yong)于立銑刀(dao)、機(ji)(ji)用(yong)(yong)(yong)(yong)絲錐及要求耐熱耐磨的(de)機(ji)(ji)械(xie)零件。

8a8763541f67697ab0ec405d21be5b7e_副本.jpg

返回頂部