Through hardening steels

F65

F65W

Spécifications

EU
34CrMo4
AIR
35CD4
ISO Symbol
34CrMo4
ISO Num
1.7220
WL
1.7220
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°C90075020140

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

See also

BED

Through hardening steels

CNS

Through hardening steels

FDMA

Through hardening steels