BÖHLER V124SC
BÖHLER V124SC is a premium aircraft-quality, low-alloy Ni-Cr-Mo steel in the form of bars, forgings and forging stock requiring high tensile and toughness values, particular in large cross sections in the hardened and tempered condition.
These products have been used typically for parts requiring a through-hardening capability up to 3.5 inches (89 mm) in nominal thickness at time of heat treatment but usage is not limited to such applications. E.g. highly stressed components and parts for the aircraft industry, Tracks, helicopter shafts, bolts and screws.
Available Product Shapes
Long Products: Presented data refer exclusively to long products. Please observe the detailed explanations at the end of the data sheet (pdf).
Melting Route
Airmelted + VAR
Material Numbers
- Market grade
- 4340
- UNS
- G43400
- AISI
- 4340
Standards
- AMS
- 6414
Chemical Composition
* Chemical Composition (Average %)
- C
- 0.38 to 0.43
- Si
- 0.15 to 0.35
- Mn
- 0.65 to 0.90
- P
- max. 0.010
- S
- max. 0.010
- Cr
- 0.70 to 0.90
- Mo
- 0.20 to 0.30
- Ni
- 1.65 to 2.00
- Cu
- max. 0.35