Zhoushan Jinmao Machinery Manufacturing Factory

screw barrel in 38crmoala material

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Overview
Product Attributes

Model No.Dia15mm-Dia300mm

BrandJINMAO

Supply Ability & Additional Information

Packagingwooden case

Place of OriginZhejiang, China (Mainland)

Packaging & Delivery
Package Type:
wooden case
Screw Barrel in 38crmoala material   Specification:  Diameter: Ø15-Ø300 L/D ratio:15-55  

Base Materials:

1)38CrMoAlA(SACM 645)

2)42CrMo(AISI 4140)

3)Cr12MoV(SKD11)

4)4Cr5MoSiV1(SKD61)

5)9Cr18MoV

6)40Cr

Bimetallic Alloy Materials:

1)Fe-based alloy

2)Ni-based alloy

3)Co-based alloy

4)Tungsten carbide

Processing Technology: 

Heat treatment

High-frequency quenching 

Nitriding treatment

Hard-chrome electroplating 

Bimetallic alloy welding

Technical Parameter:


Nitrided layer depth:0.50-0.80mm

Nitrided hardness: 900-1100HV 

Nitrided brittleness: Less than 2 level

Surface roughness: Ra 0.4

Linearity of screw: 0.015mm

Hard-chrome plating hardness after nitriding: ≥950HV

Chrome-plating layer depth: 0.025~0.10mm 

Bimetallic layer depth: 2 mm

Bimetallic hardness: HRC50-65

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Product Categories : Single Screw & Barrel > Extruder Screw Barrel

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