Screw Barrels

Nitro Alloy Steel Screw Barrels

Toughened, tempered and gas-nitrated screw barrels in nitro alloy steel — engineered for wear resistance and long service life.

Materials

PVCTPRTPU

Variants

Specification

Key features

Nitro alloy steel — toughened, tempered & gas nitrated

Depth of nitrated layer: 0.5-1 mm

Hardness of nitration: 900-1020 Hv, 58-68 HRC

Fragility of nitration: less than grade 1

Surface roughness: Ra 0.4 µm

Nitrated Cr-coating layer surface hardness: ≈950 Hv

Thickness of Cr-coating layer: 0.05-0.1 mm

Technical specifications for the Screw Barrels .

Specification	Unit	SpecificationScrew Barrels
Material	—	Nitro alloy steel (toughened, tempered, gas-nitrated)
Nitrided Layer Depth	mm	0.5-1
Nitration Hardness	Hv / HRC	900-1020 / 58-68
Fragility of Nitration	grade	< 1
Surface Roughness	µm	Ra 0.4
Cr-Coating Surface Hardness	Hv	≈950
Cr-Coating Thickness	mm	0.05-0.1

Specifications subject to change without notice. Custom configurations available on request.

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