S45C 1045 Medium Carbon Steel Plate Hot Rolled 10mm-200mm ASTM AISI SAE1045 for Die Mold and Machinery Parts Making
S45C / 1045 Medium Carbon Steel Plate — Die & Mold Grade
Our S45C (JIS) / 1045 (AISI) medium carbon steel plate contains 0.42-0.50% carbon, delivering an optimal balance of high strength, wear resistance, and machinability. In the annealed condition, it machines easily; after quenching and tempering, it achieves HRC 55-60 surface hardness for superior wear life. This makes it the go-to material for die and mold bases, machinery components, hydraulic cylinder parts, shafts, gears, and flanges across Indian automotive tooling, Southeast Asian manufacturing, and South American machinery sectors.
Key Features
- Heat Treatable: Achieves HRC 55-60 after quenching and tempering, providing excellent surface hardness and wear resistance for tooling applications
- Good Machinability: Annealed delivery condition (HB 170-210) ensures easy drilling, milling, and turning with standard carbide tooling
- Consistent Carbon Content: Tightly controlled 0.42-0.50% carbon delivers reliable response to heat treatment across every batch
- High Strength: Tensile strength ≥570 MPa in normalized condition, suitable for structural and load-bearing components
- Multiple Equivalent Standards: S45C (JIS) = 1045 (AISI) = C45 (EN) = 45# (GB) ensures seamless substitution in global supply chains
Technical Specifications
| Grade | S45C / 1045 / C45 / 45# (UNS G10450 / EN 1.0503) |
| Standard | ASTM A29/A29M, JIS G4051, GB/T 699, EN 10083-2 |
| Thickness | 10mm - 200mm |
| Width | 1000mm - 2500mm |
| Hardness (Annealed) | HB 170-210 |
| Hardness (Hardened) | HRC 55-60 (after quenching + tempering) |
| Tensile Strength | ≥570 MPa (normalized) |
| Yield Strength | ≥335 MPa |
Target Markets & Applications
- India: Automotive stamping die bases, injection mold frames, press tool backing plates
- Southeast Asia: Machinery shafts, hydraulic cylinder rods, gear blanks, coupling flanges
- South America: Mining equipment wear plates, agricultural machinery components, forging dies
- General engineering: spindles, crankshafts, connecting rods, structural pins and bushings
Packaging & Delivery
Plates protected with anti-rust oil coating, bundled with steel strips by uniform size and thickness. Fumigated wooden pallets for export. Custom plasma/flame cutting to size available. MTC EN 10204 3.1 provided with every shipment. FOB/CIF to major ports worldwide.
Get in Touch
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