Engineering grade
EN24 Steel
Nickel-chromium-molybdenum alloy steel for demanding applications.
General grade information
EN24 is a nickel-chromium-molybdenum alloy steel designation, generally used for highly stressed components where strength and toughness in larger sections matter.
Typical applications
- Heavy-duty shafts and spindles
- Gears and power transmission parts
- Large-section machine components
Product forms, subject to availability
- Heavy Rounds
- Forged Shafts
Typical chemical composition — BS 970 817M40
| Element | Typical range (%) |
|---|---|
| Carbon (C) | 0.36 – 0.44 |
| Manganese (Mn) | 0.45 – 0.70 |
| Silicon (Si) | 0.10 – 0.40 |
| Nickel (Ni) | 1.30 – 1.70 |
| Chromium (Cr) | 1.00 – 1.40 |
| Molybdenum (Mo) | 0.20 – 0.35 |
Equivalent grades
- 817M40
- IS 40Ni6Cr4Mo3
- AISI 4340
- DIN 34CrNiMo6 (1.6582)
Equivalents are approximate. Reference ranges only — actual batch values confirmed per enquiry.
About our EN24 stock
The information above is general for the EN24 designation. Exact composition, hardness, strength and heat-treatment condition of a specific batch are not stated here and must be confirmed per enquiry.
Availability subject to current stock confirmation. Grades, sizes, lengths and quantities vary with current inventory.
Material documentation can be discussed and confirmed against the specific requirement and available records.
Other grades: EN8 · EN9 · EN19 · C45 · P20 · EN31 · MS · S235JR · S275JR · ASTM A36
Enquire about EN24
Include any documentation you require — it is recorded with your enquiry and verified before any commitment.