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直径范围:Ø15mm~Ø500mm 长径比:L /D=7~55
材质:38CrMoAIA(41CrAIMo7)
调质硬度: HB280-320
螺杆直线度: 0.015mm
氮化硬度: HV850-1000
氮化深度: 0.45~0.7mm
氮化脆性:2级
表面粗糙度:≤Ra0.4
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Diameter range:from 60mm to 250mm L/D ratio:16-40 ...
Hubei Kingz Technology Co., Ltd