Alloy Steel EN24
Alloy Steel EN24
Apar Alloys offers Alloy Steel EN24, a high-performance nickel-chromium-molybdenum steel known for its exceptional strength, toughness, and fatigue resistance. Specifically designed for high-stress and dynamic applications, this grade provides excellent mechanical properties under quenched and tempered conditions, making it ideal for aerospace, automotive, and general engineering components that require superior durability and performance.
With a balanced alloy composition, EN24 delivers enhanced hardenability, wear resistance, and impact strength even under extreme conditions. The combination of nickel, chromium, and molybdenum provides excellent tensile strength, toughness, and resistance to deformation. It offers good machinability in the annealed state and responds effectively to heat treatment, achieving high surface hardness. These qualities make EN24 a reliable choice for demanding mechanical and structural applications across multiple industries.
Specifications
| Grade | AISI | UNS | ASTM A276 / A479 | ASTM A182 | EN (W-Nr) | DIN Spec |
|---|---|---|---|---|---|---|
| EN24 | 4340 | G43400 | ASTM A276 / A479 | ASTM A182 | 1.6511 | 34CrNiMo6 |
General Characteristics
Nickel-Chromium-Molybdenum alloy steel
High tensile and yield strength with good ductility
Excellent toughness and fatigue resistance under stress
Good wear resistance and hardenability
Performs well after heat treatment (quenching and tempering)
Reliable for dynamic and high-load applications
Chemical Composition (nominal) %
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|
| EN24 | 0.36–0.44 | 0.10–0.35 | 0.45–0.70 | ≤0.035 | ≤0.040 | 1.00–1.40 | 1.30–1.70 | 0.20–0.35 | Balance |
Applications
Used in aerospace landing gears, shafts, and heavy-duty transmission parts
Ideal for automotive axles, crankshafts, connecting rods, and gears
Widely used in marine propulsion systems and offshore equipment
Suitable for powertrain components and machine tool spindles
Commonly employed in industrial tools, bolts, and fasteners
Applied in high-performance mechanical parts under impact loading
Advantages
- Exceptional tensile and yield strength with good ductility
- Excellent fatigue and impact resistance under stress
- Superior wear resistance and dimensional stability after treatment
- Outstanding machinability and polishability in annealed condition
- Long service life with low maintenance and consistent performance
- Reliable performance under high stress and dynamic loads
Mechanical Properties (Typical at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 850 – 1000 |
| Yield Strength (MPa) | 680 – 850 |
| Elongation (%) | 13 – 16 |
| Hardness (Brinell) | 248 – 302 HB |
Why Choose Apar Alloys
At Apar Alloys, we combine technical expertise with a customer-focused approach to deliver certified materials that meet international standards and performance requirements.
Trusted Stockist & Supplier
Ready inventory ensuring prompt and reliable dispatch
Sourced from Reputed International Mills
Guaranteed material consistency and traceability
Comprehensive Quality Assurance
Rigorous testing and certification for every batch
Custom Sizes and Finishes
Tailored supply options for diverse industrial applications
Competitive Pricing & Timely Delivery
Value-driven solutions with on-time logistics
Dedicated Client Support
Personalized service and long-term reliability
Get in Touch
Contact Us
Looking for a reliable supplier of Alloy Steel EN24 materials? Contact Apar Alloys today for detailed specifications, custom sizes, or competitive quotations for Alloy Steel Round Bars and Components.
[Call] +91 98333 89128
301, 3rd floor, A WING, Krishvi Escape, Near Vinay Health Home, Fanaswadi Bhuleshwar, Mumbai - 400002.
Send Mail
