722M24 - 3% Chromium–Molybdenum Nitriding Steel
The Scrap surcharge has reduced for February 2019 as a consequence of lower production volumes at the end of 2018 and a realignment with other European scrap surcharges.
Surcharge information as listed via Liberty Speciality Steels where possible, other based on mean chemical analysis for the given grade.
Surcharge Price History for 722M24
| FEB 18 | MAY 18 | AUG 18 | NOV 18 | TODAY |
|---|---|---|---|---|
| £445.20 | £450.34 | £491.93 | £491.45 | £449.04 |
Description
722M24 grade steel is a chromium-molybdenum nitriding steel often supplied in the hardened and tempered condition (typically with 1075 N/mm² tensile strength).
After nitriding it develops a hard wear resistant case in the range of 61-65HRc with good resistance to shock and fatigue.
The relatively low temperature of the nitriding process produces components with a scale free surface and minimum distortion. No significant loss of surface hardness will result from operating temperature up to 500°C.
Typical applications of 722M24 grade steel
- Aircraft applications
- Crankshafts
- Gears
- Plastic moulds
- Compressor discs
- Pins
- Spindles
- Bolts
722M24 steel is still often referred to as EN40B steel - its equivalent grade under the previous BS 970: 1955 standard.
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PRODUCTION METHOD
Rolled or Forged
FINISHES
Black Bar or Bright Bar