EN24 Steel Supplier in India
EN24 Round Bars, Billets, Flats & Ingots
What is EN24 Steel?
EN24 is a high-strength nickel-chromium-molybdenum alloy steel widely used in demanding engineering applications requiring excellent toughness, fatigue resistance and wear resistance. It is commonly supplied in the hardened and tempered condition and is one of the most popular alloy steels used in forging, automotive, aerospace, mining and heavy engineering industries.
Compared to EN8 and EN19, EN24 offers superior toughness and impact resistance, making it suitable for highly stressed components subjected to shock loading.
EN24 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.36 – 0.44 |
| Silicon (Si) | 0.10 – 0.35 |
| Manganese (Mn) | 0.45 – 0.70 |
| Chromium (Cr) | 1.00 – 1.40 |
| Nickel (Ni) | 1.30 – 1.70 |
| Molybdenum (Mo) | 0.20 – 0.35 |
| Sulphur (S) | ≤ 0.05 |
| Phosphorus (P) | ≤ 0.05 |
EN24 Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 850 – 1000+ MPa |
| Yield Strength | 650 – 850 MPa |
| Hardness | 248 – 302 HB |
| Density | 7.85 g/cm³ |
| Elongation | 12 – 16% |
* Values vary depending on section size and heat treatment condition.
Key Properties of EN24 Steel
High Tensile Strength
EN24 develops very high strength after heat treatment while maintaining toughness.
Excellent Toughness
The nickel content provides superior impact resistance compared to many conventional alloy steels.
Good Fatigue Resistance
Suitable for components subjected to repeated loading and cyclic stresses.
Deep Hardening Characteristics
EN24 can achieve high hardness throughout large cross-sections.
Good Wear Resistance
Widely used in shafts, gears and transmission components.
EN24 Heat Treatment
EN24 responds exceptionally well to heat treatment.
Annealing
Improves machinability and reduces internal stresses.
Hardening
Typically hardened by oil quenching.
Tempering
Used to achieve the desired balance of strength and toughness.
Induction Hardening
Can be surface hardened for increased wear resistance.
EN24 for Forging Applications
EN24 is one of the most widely used alloy steels in forging units because it combines:
- High strength
- Good forgeability
- Excellent toughness
- Consistent heat treatment response
Common forging sectors include automotive, oil & gas, mining, power generation, and industrial machinery.
Common Applications
- • Transmission shafts & Gear shafts
- • Pinions & Gears
- • Axles & Crankshafts
- • Couplings
- • Heavy-duty bolts & Studs
- • Forged engineering components
- • Aircraft fittings
- • Mining equipment components
EN24 Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| BS970 | 817M40 |
| AISI/SAE | 4340 |
| DIN | 34CrNiMo6 |
| EN | 34CrNiMo6 |
| JIS | SNCM439 |
* This is important because many buyers search for 34CrNiMo6 or 4340 rather than EN24. EN24 and 34CrNiMo6 are widely accepted equivalent grades.
EN24 vs EN19
| Property | EN19 | EN24 |
|---|---|---|
| Strength | High | Very High |
| Toughness | Good | Excellent |
| Fatigue Resistance | Good | Excellent |
| Impact Resistance | Good | Superior |
| Cost | Lower | Higher |
EN24 is generally selected when higher toughness and shock resistance are required.
EN24 vs EN8
EN24 is a highly alloyed steel (Nickel, Chromium, Molybdenum) while EN8 is an unalloyed carbon steel. EN24 offers massively superior strength, toughness, and through-hardening capabilities compared to EN8, making it suitable for critical, high-stress applications where EN8 would fail.
Available Forms at Excellent Steels & Alloys
EN24 Billets
- Open die forgings
- Closed die forgings
- Automotive forgings
- Heavy engineering components
EN24 Ingots
- Forging units
- Rolling mills
- Re-melting applications
- Custom forging programs
EN24 Round Bars
- Shafts & Gear blanks
- Pins & Axles
- Machined components
EN24 Flats
- Engineering parts
- Machinery components
- Fabrication applications
- Tooling applications
Frequently Asked Questions
What is EN24 steel used for?
EN24 is used for highly stressed engineering components such as gears, shafts, axles, crankshafts and forged parts requiring high strength and toughness.
Is EN24 stronger than EN19?
Both are high-strength alloy steels, but EN24 generally offers better toughness and impact resistance because of its nickel content.
Can EN24 be heat treated?
Yes. EN24 is commonly hardened and tempered to achieve very high mechanical properties.
Is EN24 suitable for forging?
Yes. EN24 is one of the most commonly forged alloy steel grades in automotive and heavy engineering applications.
What forms of EN24 are available?
Excellent Steels & Alloys supplies EN24 in Billets, Ingots, Round Bars, and Flats.
Excellent Steels & Alloys is a trusted supplier of EN24 steel, 34CrNiMo6 steel and 817M40 alloy steel in India. We supply EN24 billets, EN24 ingots, EN24 round bars and EN24 flats to forging units, machine shops, exporters and engineering manufacturers across the country.
Why Buy EN24 from Us?
- Reliable material sourcing
- Competitive pricing
- Fast dispatch across India
- Available in billets, ingots, rounds and flats
- Suitable for forging and machining applications
- Trusted supplier to forging units, machine shops and exporters
Industries Served
- • Automotive Industry
- • Forging Industry
- • Aerospace Industry
- • Defence Manufacturing
- • Mining Equipment
- • Oil & Gas Equipment
- • Heavy Engineering
Ready to order?
Contact us today for pricing, stock availability, and customized requirements for EN24 Steel.