Alloy Steel EN 353
Alloy Steel EN353
Apar Alloys offers Alloy Steel EN353, a nickel-chromium case-hardening steel designed to deliver an exceptional combination of strength, toughness, and surface wear resistance. Known for its high core strength and excellent case hardenability, EN353 is ideally suited for applications requiring a tough core and a hard outer surface. This alloy provides superior performance in automotive, machinery, and heavy engineering components, where precision and endurance are critical.
With its balanced alloy composition of nickel, chromium, and molybdenum, EN353 offers outstanding fatigue strength, impact resistance, and hardenability. It can be carburized and heat-treated to achieve a hard, wear-resistant surface with a tough and ductile core. The alloy also offers good machinability in the annealed condition, maintaining dimensional stability even under shock, vibration, and cyclic stress. Its ability to combine strength, wear resistance, and toughness makes EN353 a reliable choice for demanding engineering applications.
Specifications
| Grade | AISI | UNS | ASTM A276 / A479 | ASTM A182 | EN (W-Nr) | DIN Spec |
|---|---|---|---|---|---|---|
| EN353 | AISI 3310 | G33106 | ASTM A276 / A479 | ASTM A182 | 1.5752 | 15NiCr1Mo15 |
General Characteristics
Nickel-Chromium-Molybdenum case-hardening alloy steel
High core strength with excellent case hardenability
Superior wear resistance and surface hardness after carburizing
Excellent toughness and fatigue resistance under dynamic load
Good machinability and polishability in the annealed condition
Reliable for precision-engineered, high-performance components
Chemical Composition (nominal) %
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|
| EN353 | 0.17–0.23 | 0.10–0.35 | 0.50–0.80 | ≤0.035 | ≤0.035 | 0.80–1.10 | 1.00–1.50 | 0.08–0.15 | Balance |
Applications
Ideal for gears, pinions, and shafts requiring hard surface and tough core
Used in automotive transmission and differential components
Suitable for bearings, spindles, and camshafts under dynamic stress
Commonly applied in heavy-duty machinery and industrial equipment
Perfect for mechanical couplings and precision tool parts
Used in powertrain systems and general engineering assemblies
Advantages
- Excellent core toughness with high surface hardness
- Superior wear and fatigue resistance after carburizing
- Reliable performance in high-strength, wear-critical environments
- Maintains good machinability and polishability in annealed form
- Long service life under impact and repeated load conditions
- Stable dimensional properties post heat treatment
Mechanical Properties (Typical at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 850 – 1000 |
| Yield Strength (MPa) | 650 – 750 |
| Elongation (%) | 12 – 16 |
| Hardness (Brinell) | 220 – 290 HB |
| Case Hardness (after carburizing) | 58 – 62 HRC |
Why Choose Apar Alloys
At Apar Alloys, we combine technical expertise with a client-focused approach, ensuring materials meet international quality standards and project-specific requirements.
Trusted Stockist & Supplier
Ready inventory for quick and reliable dispatch
Sourced from Reputed International Mills
Consistent quality and traceable certifications
Comprehensive Quality Assurance
Every batch undergoes detailed testing and inspection
Custom Sizes & Finishes
Tailored solutions for unique industrial needs
Competitive Pricing & Timely Delivery
Value-driven materials with prompt logistics
Dedicated Client Support
Personalized service and long-term business relationships
Get in Touch
Contact Us
Looking for a dependable source for Alloy Steel EN353 materials? Contact Apar Alloys today for detailed specifications, quotations, or customized supply solutions 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.
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