1.Common steel: Material 38CrMoAIA Roughness Ra0.4 Heat treatment hardness HB260～320 Screw straightness 0.015mm Nitriding hardness HV950～1000 Chrome plating hardness ≥950HV Nitriding depth 0.5～0.7mm Chrome thickness 0.05～0.10mm Fragility ≤grade 2 Bimetal depth…
Extrusion series screws and barrels are manufactured based on years of expertise in design, R&D and application segments of various pipes, profiles, cables, films, extrusion blown molding, drawing and granulation…
Introduction: The materials of SBK1 are superior 38CrMoAlA, SCM645 Characteristic: Nitriding insulation: 505°C 38 hours, 550°C 34 hours Nitriding depth: More than 0.48mm one side Nitriding hardness: More than HV960°…
SBK3 series are bimetallic barrels processed with high temperature centrifugal casting. The base material is made of 40Cr, 42CrMo and the Iron-based alloy powder selected from Stellite (Shanghai) Co., Ltd.…
SBK5 barrel is a Nickel based double alloy barrel produced with vacuum sintering cladding process, high quality pre hardening material (high pressure resistance) and imported nickel base self fluxing alloy…
SBK7 series are special high pressure resistance bimetallic barrel. Characteristics: Superior abrasion resistance, excellent polishability and high pressure resistance. Hardness: HRC (55-60 °) Straight Length: < 0.02/m Diameter of production…
SST100 series are made of superior nitrided steels 38CrMoAlA, SCM645. SST100 series screws are suitable for SBK1、SBK3 barrels Material: Superior nitrided steel 38CrMoAlA, SCM645 Depth of nitrided layer: 0.4 ~…
SST200 series are made from domestic and imported cold-working alloy steel. Characteristics: Well abrasion resistance and hardenability, superior toughness, good surface properties, suitable for surface nitriding, electrol plate and PVD…
SST300 series are made from domestic and imported die steel. Characteristics: High abrasion resistance, excellent overall hardenability and stable dimension in heat treatment SST300 series screws are suitable for SBK3,…
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