extruder hardness single screw from China manufacturer - Zhoushan Vanscrew Machinery Co.,Ltd.

Product Detail

Model No.: SC-45

Production Capacity: 300sets/month

Delivery Date: 25days

Steel Material: 38CrMoALA,SKD61.,D2 etc.

Nitriding Treatment: ≥ 96 hours

Means of Transport: Ocean

Packing: woodern case

Brand Name: Vanscrew

Hardness after Hardening&Termpering: HB240-280

Surface Hardness: 58-64 HRC

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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

hardness single screw

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