S45C Non-Alloy Steel is a medium carbon steel with notable characteristics of hardness and strength. It is widely used in mechanical machining and machine manufacturing, especially in applications requiring high durability and good wear resistance.

Key Characteristics of S45C Non-Alloy Steel:

- Chemical Composition:
- Carbon (C): Approximately 0.42-0.48%, which increases the hardness and strength of the steel.
- Manganese (Mn): Approximately 0.60-0.90%, which enhances toughness and impact resistance.
- Silicon (Si) and Phosphorus (P): Kept at low levels to maintain good weldability and machinability.
- Sulfur (S): Low content to improve machinability without compromising strength.

- Physical Properties:
- Tensile Strength: High, suitable for applications requiring significant strength and load-bearing capacity.
- Hardness: Can be hardened and tempered to achieve the desired hardness.
- Machinability: Good, easily machinable using traditional methods.

- Applications:
- Machine Manufacturing: Used for shafts, gears, camshafts, and other machinery parts that require strength and load-bearing capacity.
- Automotive Industry: Used in producing load-bearing parts like shafts and connecting rods.
- Construction Industry: Used in structures requiring strength and stability.

- Shape and Size:
- S45C steel is commonly supplied in round bars, square bars, plates, and customized products according to customer requirements.

Manufacturing and Processing:
- S45C steel is typically produced through hot rolling, followed by heat treatment (such as quenching and tempering) to achieve improved mechanical properties. It is easily machinable using traditional methods like turning, milling, and grinding.
(Source: Internet)