Steels for carburizing
NCAV
Spécifications
EU
12NiCr12
AIR
12NC12
Composition
C
0.12
Ni
3.3
Cr
0.75
Applications
• Carburized condition: shafts, pins, gears, etc.
• Non-carburized condition: mechanical parts.
Characteristics
• Carburizing and heat treatable nickel-chromium steel.
• After carburizing, hardening and tempering, the surface hardness is around 700 HV.
Mechanical properties
Heat treatment |
UTS (N/mm²) |
0,2% YS (N/mm²) |
A (%) |
KCU (J/cm²) |
---|---|---|---|---|
T + Rv 150°C | 1150 | 950 | 14 | 120 |
T + Rv 575°C | 850 | 700 | 19 | 150 |
Key to heat treatment symbols
Solution treated | H | Annealed | R |
---|---|---|---|
Thermo-mechanical treatment | TM | Quenched and tempered | T+RV |
Sub-zero treatment | F | Solution treated and aged | H+V |