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40CrMnNiMo 8-6 -4/AISI: P20+Ni

Delivery Method : Hardened and tempered 280-325 HB

Uses :It is the most preferred material to be used in plastic molds. It provides great advantage to the user during use due to its homogeneous hardness distribution and high surface gloss after heat treatment. There are wide usage areas such as television body, car bumper, plastic container molds in all sizes in large-sized plastic molds. It is suitable to harden the surface by nitration process.


Chemical Composition (%)CSiMnCrMoNi
Average 0,400,301,451,900,201,00
DIN Analysis0,35-0,450,20-0,401,30-1,601,80-2,100,15-0,250,90-1,20


Thermal Conductivity  ( W/ m.K )20°C350°C700°C
34,533,532,0


HEAT TREATMENT DATA
  Temperature (°C)Time (Saat)Cooling Environment
Softening Annealing
710-7402-5*Baked
Stress Relieving 
550-6002*Baked
Hardening 
840-870-Oil, hot bath 180-220°C
Tempering 
600-6801 hour for every 20 mmAir 


*Time interval varying depending on the section.