C45 Steel Supplier in India
C45 Round Bars, Billets, Flats & Ingots
What is C45 Steel?
C45 is a medium carbon engineering steel known for its excellent balance of strength, machinability and wear resistance. Classified under the European EN standard as Material No. 1.0503, C45 is one of the most commonly used steels for shafts, gears, axles, pins, rollers and general engineering components.
Its versatility, availability and cost-effectiveness make it a preferred choice for the automotive, forging, machine building, agricultural equipment and heavy engineering industries.
C45 is a non-alloy medium carbon steel containing approximately 0.45% carbon. It offers higher strength and hardness than low-carbon steels while maintaining good machinability and heat treatment response. C45 can be supplied in the normalized, annealed or hardened and tempered condition. It is suitable for induction hardening, making it ideal for components that require a wear-resistant surface with a tough core. Excellent Steels & Alloys supplies premium-quality C45 billets, ingots, round bars and flats to forging units, machine shops and engineering manufacturers across India.
C45 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.42 – 0.50 |
| Manganese (Mn) | 0.50 – 0.80 |
| Silicon (Si) | ≤ 0.40 |
| Phosphorus (P) | ≤ 0.045 |
| Sulphur (S) | ≤ 0.045 |
Typical Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 570–700 MPa (normalized) |
| Yield Strength | ≥ 330 MPa |
| Hardness | 170–220 HB (normalized) |
| Density | 7.85 g/cm³ |
| Elongation | 14–17% |
Mechanical properties vary depending on section size and heat treatment.
Key Properties of C45 Steel
Good Mechanical Strength
Higher strength than mild steel, making it suitable for load-bearing engineering components.
Excellent Machinability
Machines efficiently in the normalized or annealed condition.
Good Wear Resistance
Can be induction hardened to improve surface durability.
Good Heat Treatment Response
Suitable for hardening and tempering to achieve enhanced mechanical properties.
Cost-Effective Engineering Steel
Offers dependable performance at an economical cost.
Heat Treatment
C45 responds well to various heat treatment processes.
Normalizing & Annealing
Normalizing refines grain structure. Annealing improves machinability and relieves internal stresses.
Hardening
Typically achieved by heating and water or oil quenching, depending on section size.
Tempering
Improves toughness while maintaining strength.
Induction Hardening
Commonly used to create a hard, wear-resistant surface on shafts, pins and gears.
C45 for Forging Applications
C45 is widely used for forged engineering components because it offers:
- Good forgeability
- Consistent mechanical properties
- Excellent machinability after forging
- Reliable heat treatment response
- Competitive cost
It is frequently selected for both open-die and closed-die forging applications.
Common Applications
- • Shafts and Axles
- • Gear blanks and Gears
- • Pins and Rollers
- • Connecting rods
- • Crankshafts
- • Studs and Bolts
- • Couplings
- • Machine spindles
- • Agricultural machinery components
- • Forged engineering parts
C45 Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| EN | C45 |
| DIN | C45 / C45E |
| Material Number | 1.0503 |
| AISI/SAE | 1045 |
| BS | 080M46 (commonly referenced) |
| JIS | S45C |
Note: Equivalent grades may have slight differences in chemical composition or mechanical property requirements. Always verify the applicable standard for your application.
C45 vs EN8
| Property | C45 | EN8 |
|---|---|---|
| Carbon Content | Slightly Higher | Slightly Lower |
| Strength | Higher | Medium |
| Wear Resistance | Better | Good |
| Machinability | Good | Excellent |
| Typical Apps | Heavy-Duty Components | General Engineering |
C45 is often selected when higher hardness and wear resistance are required compared to EN8.
C45 vs EN19
| Property | C45 | EN19 |
|---|---|---|
| Alloying Elements | None | Chromium & Molybdenum |
| Strength | Medium-High | High |
| Hardenability | Moderate | Excellent |
| Cost | Lower | Higher |
| Typical Use | General Engineering | Heavy-Duty Engineering |
Choose C45 for cost-effective engineering applications and EN19 for components requiring higher strength and fatigue resistance.
Available Forms at Excellent Steels & Alloys
C45 Billets
- Open-die forgings
- Closed-die forgings
- Automotive components
- General engineering parts
C45 Ingots
- Forging units
- Rolling mills
- Steel processors
- Re-melting operations
C45 Round Bars
- Shafts
- Pins & Rollers
- Gear blanks
- Machined engineering components
C45 Flats
- Machine building
- Fabrication
- Tool holders
- Engineering components
Frequently Asked Questions
What is C45 steel used for?
C45 is widely used for shafts, gears, axles, pins, rollers, crankshafts and other medium-strength engineering components.
Is C45 the same as EN8?
No. Both are medium carbon steels, but C45 generally has a slightly higher carbon content and can achieve higher hardness. They are similar in application but are not direct equivalents.
Can C45 be hardened?
Yes. C45 responds well to hardening, tempering and induction hardening, making it suitable for wear-resistant components.
Is C45 suitable for forging?
Yes. C45 has good forgeability and is extensively used in both open-die and closed-die forging operations.
What forms of C45 are available?
Excellent Steels & Alloys supplies C45 in Billets, Ingots, Round Bars, and Flats.
Excellent Steels & Alloys is a trusted supplier of C45 medium carbon steel for forging, machining and industrial engineering applications. We supply C45 billets, C45 ingots, C45 round bars and C45 flats to forging units, machine shops, automotive manufacturers and exporters across India. Our C45 steel is suitable for heat treatment, induction hardening and the production of high-performance engineering components.
Why Choose Excellent Steels & Alloys?
- Consistent material quality
- Competitive pricing
- Fast dispatch across India
- Billets, ingots, round bars and flats
- Reliable supply for forging units, machine shops, OEMs and exporters
- Custom sizes and quantities to meet production needs
Industries Served
- • Automotive Manufacturing
- • General Engineering
- • Forging Industry
- • Agricultural Equipment
- • Construction Equipment
- • Industrial Machinery
- • Machine Tool Manufacturing
- • Heavy Engineering
Ready to order?
Contact us today for pricing, stock availability, and customized requirements for C45 Steel.