Alloy Steel EN8 / C45
Alloy Steel EN8 / C45
Apar Alloys, a trusted Stockist and Supplier of premium alloy steel materials, offers Alloy Steel EN8 / C45, a high-quality medium carbon steel renowned for its excellent strength, toughness, and machinability. Specifically designed for applications requiring good fatigue and impact resistance, this grade is widely used across engineering, automotive, and general industrial sectors, providing reliable performance in critical load-bearing components.
With uniform mechanical properties and good hardenability, Alloy Steel EN8 / C45 delivers reliable performance under normalized, quenched, or tempered conditions. The carefully controlled carbon content ensures superior resistance to wear, abrasion, and moderate temperature deformation, making it ideal for precision-engineered components, high-load parts, and structural applications where durability, reliability, and long service life are essential.
Specifications
| Grade | AISI | UNS | ASTM A276 / A479 | ASTM A182 | EN (W-Nr) | DIN Spec |
|---|---|---|---|---|---|---|
| EN8 | AISI 1040 | G10400 | ASTM A276 / A479 | ASTM A182 | 1.1186 | C40 |
| C45 | AISI 1045 | G10450 | ASTM A276 / A479 | ASTM A182 | 1.1191 | C45 |
General Characteristics
Medium carbon steel with high toughness and strength
Excellent fatigue and impact resistance
Good machinability and dimensional stability
Suitable for quenching, tempering, and normalizing
Reliable performance in moderate-stress environments
Ideal for structural and load-bearing applications
Chemical Composition (nominal) %
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|
| EN8 | 0.36–0.44 | 0.10–0.40 | 0.60–1.00 | ≤0.040 | ≤0.040 | ≤0.40 | ≤0.40 | ≤0.10 | Balance |
| C45 | 0.42–0.50 | 0.10–0.40 | 0.50–0.80 | ≤0.045 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.10 | Balance |
Applications
Transmission shafts and other critical drive components
Gears, studs, bolts, and fastening elements
Hydraulic cylinders, tool holders, and precision parts
Machine components, crankshafts, and rotating assemblies
Automotive engine and powertrain system components
Structural elements for engineering and industrial uses
Advantages
- High tensile and yield strength with good ductility
- Excellent wear and fatigue resistance under moderate loads
- Stable mechanical properties after heat treatment
- Reliable machinability and consistent dimensional control
- Suitable for precision-engineered and high-load components
- Extended component life and low maintenance requirements
Mechanical Properties (Typical at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 580 – 700 |
| Yield Strength (MPa) | 350 – 450 |
| Elongation (%) | 20 – 25 |
| Hardness (Brinell) | 170 – 210 HB |
Why Choose Apar Alloys
At Apar Alloys, we blend technical expertise with a customer-focused approach. Our wide-ranging inventory and global sourcing network ensure clients receive certified materials that meet international standards and exact application requirements.
Trusted Stockist & Supplier
We maintain a ready-to-dispatch inventory of materials, ensuring fast and dependable delivery for all clients.
Sourced from Reputed Global Mills
All materials are procured from trusted international suppliers, guaranteeing consistent quality and reliability.
Comprehensive Quality Assurance
Each product undergoes strict inspections with traceable documentation to meet rigorous quality standards.
Custom Sizes, Finishes & Services
We provide tailored solutions including custom sizing, finishing, and cut-to-length services to suit client needs.
Competitive Pricing & Reliable Delivery
Apar Alloys offers cost-effective solutions while ensuring timely and dependable delivery across industries.
Dedicated Client Support
Our professional team provides personalized assistance, fostering long-term trust and strong client relationships.
Get in Touch
Contact Us
Looking for a trusted supplier for Alloy Steel EN8 / C45 materials? Contact us today for quotes, material specifications, or customized supply solutions for Alloy Steel Round Bars and Pipes.
[Call] +91 98333 89128
301, 3rd floor, A WING, Krishvi Escape, Near Vinay Health Home, Fanaswadi Bhuleshwar, Mumbai - 400002.
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