Technical specification

Hardness after hardening&tempering:HB240-280

Hardness of nitride layer:HV850-1000

Nitrided brittleness:less than grade 2

Surface roughness:Ra0.4

Screw straightness:0.015mm

Surface chromiun-plating's hardness after nitriding:≥950HB

Alloy hardness:HRC50-65Alloy depth:0.8-2.0mm

Meterial&processes

Quality 38 CrMoALA

42CrMo

CW6Mo5Cr4V2

9Cr18MoV

Quality powder metallurgy raw materials

Cold/thermal spray hard metal process

Advanced nitriding processCorrosion & abrasion resistance bimetallic spraying process

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‍We could design the screw accourding to your

material+filler, your products and your output.

Screw barrel specification available:

screw barrel photoes:

  About HUACHEN

Zhejiang HUACHEN Screw Manufacturing is a screw barrel desining&processing company,the factory covers the area of more than 7000 square meters,employ more than 80 skilled workers,engineers and designers.HUACHEN trust that best quality,best design and best after-service will attract more and more customers like you.HUACHEN people also are friendly and enthusiastic,we treat every one as our customer and friend,so don't  be shy to ask us questions,we are pleased to answer you any questions about screw barrel.And also welcome skilled engineers to disguss screw barrel problems with us!