
![]() |
Zhoushan Vanscrew Machinery Co.,Ltd.
|
Price: | 300.0~600.0 USD |
Payment Terms: | T/T,L/C,D/A,D/P,WU |
Place of Origin: | Zhejiang, China (Mainland) |
![]() |
![]() |
Add to My Favorites | |
HiSupplier Escrow |
Materil:38CrMoALA
Heat-treatment:
1.Nitriding treatment
2.Electroplated hard-chrome finish
3.High-frequency quenching
4.Spray coating Bimetallic-alloy
5.Vacuum quenching
Technical specification
Hardness After Hardening &Tempering: | HB240 -280 |
Nitrided Hardness: | Hv850-1000 |
Nitrided Depth: | 0.45-0.7mm |
Nitrided Brittleness: | ≤Grade 2 |
Surface Roughness: | Ra0.4 |
Screw straightness: | 0.015mm |
Surface Chromate-plating's Hardness After Nitrided: | ≥900Hv |