Appliled to:Feed expander machine

Material:4-C13/38CrMoAla

Tempering Hardness:HB240-280

Nitride Hardness:HV850°---1000°

Nitride Depth:0.45--0.70mm

Nitride Brittleness:≤Grade TWO

Surface Crudeness:Ra0.4

Screw Linearity:0.015mm

Hard Chromeplate of Surface After Nitriding:≥900HV

Chromeplate Thickness:0.05--0.10mm

Double Alloy Hardness:HRC56°--65°.

Alloy Depth:0.8--2.0mm