CK35 Carbon Steel Round Bar (UNS G10350)
CK35 Round Bar is a medium carbon steel grade defined under EN standards and internationally identified as UNS G10350. With a nominal carbon content of around 0.35%, CK35 steel provides a balanced combination of strength, toughness, and machinability. It is commonly supplied in hot rolled or normalized condition and is widely used in mechanical and structural engineering applications where moderate strength is required.
Key Features
- Medium carbon content for balanced mechanical properties
- Good machinability and formability
- Uniform strength and toughness
- Suitable for surface hardening and heat treatment
- Cost-effective steel for engineering use
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| EN | CK35 / 1.1181 |
| DIN | CK35 |
| ASTM / SAE | AISI 1035 |
| JIS | S35C |
| IS | EN8 (Approx.) |
Sizes
- Diameter: 10 mm to 600 mm
- Length: 3 m, 6 m, or cut-to-length
- Custom sizes available on request
CK35 Round Bar Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.32 – 0.39 |
| Manganese (Mn) | 0.50 – 0.80 |
| Silicon (Si) | ≤ 0.40 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.045 |
UNS G10350 Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 540 – 680 MPa |
| Yield Strength | ≥ 305 MPa |
| Elongation | ≥ 18% |
| Hardness | 160 – 200 HB (Normalized) |
CK35 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | ~1460°C |
| Thermal Conductivity | 49 W/m·K |
| Modulus of Elasticity | 210 GPa |
Types CK35 Carbon Steel Round Bar
- Hot Rolled Round Bar
- Bright Drawn Round Bar
- Forged Round Bar
- Turned & Polished Round Bar
Applications
- Shafts and spindles
- Bolts, studs, and pins
- Automotive and tractor components
- Machine parts and general engineering
- Structural fabrication and mechanical assemblies
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