Extruder Screw Shaft

Extruder shaft is spline design which is good for torque distribution. 

Using 40CrNiMoA material, the compactness is increased by forging and processing, and the material torque is improved by heat treatment process. 

Density (kg/m3): about 7830

Elastic modulus (GPa): 209

Tensile strength: b (MPa): ≥ 980 (100)

Yield strength: s (MPa): ≥ 835 (85)

The elongation is 5%: ≥ 12

The reduction rate of the cross section (%): ≥ 55

Impact energy Akv (J): ≥ 78

Impact toughness value of alpha kv (J/cm): ≥ 98 (10)