Pellet Extruding Machines Screws / Barrels

Backing Material / Property	Hardness	Principal Application
S45C	HS 24~28	Extruder
SCM440	HS 28~40	Extruder&Injection molding machine
TCB-S07	HS 35~45	High-pressure Injection molding machine
SUS316	HRC 18~28	For corrosion resistant parts

TCB Kinds and Major Compostion	Wear-resistant and Corrosion-resistant Hardness(HRC)	Hardness level	Temp. Range	Thermal Expansion Co-efficient (Alloy)
TCB-12 Ni-Wc-Co-Fe-Cu-B Nickel-based Alloy (Wc15%、Co15%)	60~62	2.5m/m	<=400	11.0×10^-611.4×10^-6
TCB-20 Ni-Wc-Co-Fe-Cu-B+Cr、Mo、V Nickel-based Alloy (Wc30%、Co15%)	66~68	2.5m/m	<=450	11.4×10^-612.1×10^-6
TCB-60 Ni-Co-Wc-Cr-B-Si-B Nickel-based Alloy (Wc30%、Co15%)	54~56	2.5m/m	<=450	11.9×10^-612.4×10^-6

TCB Kinds and Major Compostion	Resin Category
TCB-12 Ni-Wc-Co-Fe-Cu-B Nickel-based Alloy (Wc15%、Co15%)	General Resin Applicable Resin: Corrosion Resistance: Medium Glass Fiber Content: Within 30% PE/ PP/ ABS/ AS /PS/ TPE Thermosetting Resin: EP/ PU/ PE/ UP Engineering Resin Applicable Engineering Resin: Corrosion Resistance: Medium Glass Fiber Content: Within 30% PA/ PC
TCB-20 Ni-Wc-Co-Fe-Cu-B+Cr、Mo、V Nickel-based Alloy (Wc30%、Co15%)	General Resin Applicable Resin: Corrosion Resistance: High Glass Fiber Content: Over 30% PE/ PP/ ABS/ AS/ PS/ TPE Salted resin PVC Engineering Resin Applicable Engineering Resin: Corrosion Resistance: High Glass Fiber Content: Over 30% PA/ PC/ PBT/ PET/ POM/ PPO/ PEEK/ LCP/ PPS/ PAR/ PES. Special Engineering Resin: Corrosion Resistance: High Glass Fiber Content: Over 30%
TCB-60 Ni-Co-Wc-Cr-B-Si-B Nickel-based Alloy (Wc30%、Co15%)	General Resin Applicable Resin: Corrosion Resistance: High Glass Fiber Content: Over 30% PE/ PP/ ABS/ AS/ PS/ TPE Salted resin PVC Engineering Resin Applicable engineering Resin: Corrosion Resistance: High Glass Fiber Content: Over 30% PA/ PBT/ PET/ POM/ PC/ PPO/ PAR Special Engineering Resin: Corrosion Resistance: High Glass Fiber Content: Over 30%