Case-Hardening Steel
Grade C15E (EN 10084)
Enhanced strength and hardenability case-hardening steel for gears, shafts and automotive components.
Enhanced strength
Better hardenability
Automotive applications
Case-Hardening Steel (EN 10084)
Grade C15E
C15E is a case-hardening steel with enhanced strength and hardenability compared to C10E. This grade offers good tensile properties and is widely used in construction, mechanical parts, and automotive applications.
Key Features
- Enhanced strength - Higher carbon content than C10E
- Better hardenability - Improved case-hardening response
- Good tensile properties - Suitable for mechanical parts
- Excellent machinability - Easy to machine in soft condition
- Good weldability - Before heat treatment
Applications
- Gears and gear wheels
- Shafts and spindles
- Construction components
- Mechanical parts
- Automotive components
- Pins and bolts
- Cam followers and cams
Heat Treatment
- Carburizing: 900-930°C
- Hardening: 780-820°C, oil quench
- Tempering: 150-200°C
- Case depth: 0.5-2.5mm typical
- Surface hardness: 58-62 HRC
- Core hardness: 28-45 HRC
Chemical Composition
- Carbon (C): 0.12-0.18%
- Manganese (Mn): 0.30-0.60%
- Silicon (Si): 0.40% max
- Phosphorus (P): 0.035% max
- Sulfur (S): 0.035% max
- Chromium (Cr): 0.30% max
Mechanical Properties (Normalized)
- Tensile Strength: 390-540 MPa
- Yield Strength: 235 MPa min
- Elongation: 22% min
- Hardness: 120-155 HB
- Impact Energy: 55J min (at 20°C)
Equivalent Grades
- AISI/SAE: 1015
- DIN: C15 / 1.0401
- BS: 080A15
- AFNOR: C15
- JIS: S15C
Available Forms
- Seamless tubes and pipes
- Cold drawn seamless (CDS)
- Hot rolled seamless
- Round bars
- Square and rectangular sections