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Depth of Nitrated Layer:0.5~0.8mm
Hardness of nitration: 950~1100Hv
Fragility of nitration: Less than grade 1
Surface Hardness of Nitrated Cr coating layer: 950Hv
Hardness of Bimetallic Layer: HRC55~72
Thickness of Cr-coating Layer: 0.03~0.08mm
Depth of Bimetallic Layer:>2mm
Material :quality alloy steels
Production Capacity: 1500 sets/month
Packing: Fumigation wooden case
Delivery Date: 30~40 days
The product specification
Screw: 15 mm in diameter-250 mm diameter screw
Screw length: 300 mm to 8000 mm screw length
Machine tube diameter 40 mm to 400 mm: barrel outer diameter
Length-diameter ratio: L/D: 10-46