Specification: Ø45/90, Ø45/100, Ø50/105, Ø51/105, Ø55/110, Ø55/120, Ø58/124, Ø60/125, Ø65/120, Ø65/132, Ø68/143, Ø70/135, Ø70/140, Ø75/150, Ø80/143, Ø80/156, Ø92/188
The above are standard specifications, we can customize according to customers’ requirements.
Technical parameter:
Hardness after hardening and tempering: HB280-320
Nitriding hardness: 950-1100HV
Nitrided layer depth: 0.5-0.8mm
Nitrided brittleness: Less than grade 2
Surface roughness: Ra0.4
Linearity of screw: 0.015mm/m
Bimetallic layer depth: ≥3mm
Bimetallic hardness: HRC60-72
Hard-chrome plating hardness after nitriding: ≥950HV
Chrome-plating layer depth: 0.025~0.10mm
Material:
High-quality alloy steel
38CrMoAlA (JIS SACM645)
9Cr18MoV
Treatment:
Nitriding
Alloy powder spray welding
