Screw straightness：0.015mm
Tempering hardness：HB260-290
Specification：Φ50/2 (2 Represents twin screw)，Φ65/2，Φ80/2，Φ90/2，Φ105/2，Φ125/2，Φ130/2，Φ150/2，Φ180/2，Φ200/2
Material：Quality 38CrMoAIA, high quality powder metallurgy materials
Birthplace: Zhejiang Province, China (mainland)
Tempering hardness：HB260-290
Nitridation hardness：HV800-1050
Nitration case depth：0.4-0.7mm
Nitridation brittleness ≤ grade 1
Surface roughness：Ra0.4
Screw straightness：0.015mm
Chromium coating hardness after nitridation：≥900HV
Chromium coating thickness：0.05-0.10mm
Dual alloy hardness：HRC56-65
Dual alloy depth：0.8-2.0mm
Material and technology
Quality38CrMoAIA
Quality power metallurgy material
Cold/hot spraying hard metal technology
Advanced nitriding technology
Corrosion resistance, wear-resisting dual alloy spraying technology
Specification：
Φ50/2 (2 Represents twin screw)，Φ65/2，Φ80/2，Φ90/2，Φ105/2，Φ125/2，Φ130/2，Φ150/2，Φ180/2，Φ200/2
Zhoushan Changjia Plastic machinery Co.,Ltd.
