709M40 / EN19
1% Chromium-Molybdenum Through Hardening Steel
Surcharge
£509.31 per tonne
Surcharge Price History for 709M40 / EN19
| AUG 23 | NOV 23 | FEB 24 | MAY 24 | TODAY |
|---|---|---|---|---|
| £568.44 | £580.65 | £531.98 | £491.69 | £509.31 |
The surcharge data provided is based on the information available to us and represents an average of the surcharge mechanisms taken from various global steel producers. It is intended to only provide an indication of market movements and does not necessarily reflect the specific surcharges applied to individual material batches.
Product Method
Rolled or Forged
Finishes
Black Bar or Bright Bar
Description
709M40 grade steel is a versatile low alloy steel that possesses good tensile and shock resistance properties combined with ductility.
Its resistance to wear can be considerably increased by flame hardening and it is also suitable for nitriding (for maximum wear and abrasion resistance).
Bars are often supplied in the hardened and tempered condition with a tensile strength range of 850-1000N/mm². The bars are readily machinable so that the components can be put into service without the cost of further treatment.
Bars can also be supplied in the softened state which require hardening and tempering, but will give increased machinability.
Size Range
32mm - 860mm Dia
Typical applications of 709M40 grade steel
- Axle shafts
- Crankshafts
- Gears
- Induction hardened pins
709M40 steel is still often referred to as EN19 steel - its equivalent grade under the previous BS 970: 1955 standard.