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Type of Barrel and Screw Material

Sintered alloy produced with HIP technique is a kind of high quality material, which features high density, segregation-free, micropore defect free. It stands out for its excellent anti-wear performance, making it a kind of desirable material for the twin screw extruder, especially for screw elements. Thus the severe contradiction between the hard screw surface and tenacious screw core is perfectly taken care of.

Internal name Material Type Characteristic Wear resistance Corrosion resistance Typical application & structure characteristic
38CrMoAlA Nitriding steel Ordinary working conditions * ** Screw elements and barrel
Cr12MoV Tool steel High abrasion conditions like fiberglass processing ** ** Screw elements and integral barrel liners
W6Mo5Cr4V2 Tool steel High abrasion conditions like fiberglass processing *** * Screw elements and integral barrel liners
α101 Fe,Ni,B High abrasion conditions like fiberglass processing **** ** Centrifugal casting bimetallic split C liners
CB-HS10 PW+HIP High vanadium content sintered alloy with evenly distributed high content super-hard carbide (HV2800). ******* ** Screw core; Bimetallic material with high tenacity; Typical wear resistant material for high-end twin screw
CB-HS20 PW+HIP High chromium content sintered alloy tool steel with evenly distributed high content super-hard carbide; Excellent wear resistance and corrosion resistance. ***** ***** Screw core; Bimetallic material with high tenacity;
CB-HS26 PW+HIP High chromium content sintered alloy tool steel with evenly distributed high content super-hard carbide; Excellent wear resistance, toughness and corrosion resistance. ******* ****** Bimetallic integral liner
CB-HS11 PW+HIP High chromium and cobalt content sintered alloy high speed steel with evenly distributed high content super-hard carbide; Excellent toughness at high temperature;
High wear resistance
******** ** Screw core; Bimetallic material with high tenacity
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