Through hardening steels
F65
F65W
Spécifications
EU
34CrMo4
AIR
35CD4
ISO Symbol
34CrMo4
ISO Num
1.7220
WL
1.7220
1.7224
1.7224
Composition
C
0.35
Cr
1
Mo
0.2
Applications
• Various mechanical parts as:
• Shafts
•Gears.
Characteristics
• Good repeated impact resistance.
• Good fatigue properties in alternating bend stress.
Mechanical properties
Heat treatment |
UTS (N/mm²) |
0,2% YS (N/mm²) |
A (%) |
KCU (J/cm²) |
---|---|---|---|---|
T Rv 600°C | 1050 | 950 | 16.5 | 100 |
T + Rv 675°C | 900 | 750 | 20 | 140 |
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 |