Custom Cr-Mo Alloy Steel Screw Shaft, Twin Screw Extruder Spare Parts

• Single Keyway
• Square Keyslot
• High torque key button
• Dual keyslot
• Involute inner spline
• Round keyslot
• Retackle spline
• Client's requirements available

Roally WR15E is a chromium-molybdenum-vanadium alloyed steel which is characterized by:

• Excellent tensile strength combined with good toughness
• High thermal stability, high resistance to thermal shock
• Good high-temperature strength
• Good machinability and polishability
• Excellent through-hardening properties
• Good dimensional stability during hardening

Roally WR30 is a high-pressure nitriding iron-based Cr-Mo alloy which is characterized by:

• Superior corrosion resistance
• Excellent machinability
• High dimensional stability after heat treatment
• Excellent grinding and polishing ability to obtain optimal surface quality
• High durability by maximum hardness under static and dynamic demands
• Good wear resistance
• High temper resistance up to 500°C

40CrNiMoA is a kind of alloy structural steel