C4D is a type of low-carbon structural steel, also known as C4E steel. It has a carbon content of about 006 or so. C4D steel has good plasticity and toughness, but relatively low strength and hardness. The chemical composition of this steel consists of 025 of manganese, 004 of phosphorus and 005 of sulfur. It is commonly used to make low-strength structural parts such as thin plates, thin-walled tubes, and steel wires. C4D steel is also often used in processing processes such as cold rolling, cold forming, and deep drawing because of its good plasticity and formability. The steel can also be used in electronic equipment, electrical appliances and automotive manufacturing.
C4D structural steel has the following characteristics:
1. Excellent machinability: C4D structural steel has good machinability and is easy to process into parts of various shapes and sizes.
2. Good plasticity: This steel grade has good plasticity and is easy to form and cold work.
3. Good weldability: C4D structural steel has good weldability and is suitable for various welding methods.
4. Good toughness and strength: Although the carbon content is low, C4D structural steel has good toughness and strength and can withstand a certain load.
5. Wide range of application: C4D structural steel is suitable for manufacturing various parts and mechanical parts, such as bolts, nuts, bearings, nails, gears, auto parts, etc.
6. Low cost: C4D structural steel is a low-cost steel, which is suitable for some applications with low requirements for strength and quality.
To sum up, C4D structural steel has good machinability, plasticity, weldability, toughness and strength, a wide range of applications, and low cost. Therefore, in some occasions where quality and strength are not high, but good machinability is required, C4D steel can be used.