Plat S50C Steel Properties

S50C steel is a high-quality carbon structural steel that is widely used in the manufacturing industry. Its popularity can be attributed to its excellent mechanical properties, which include good toughness, hardness, and wear resistance, making it suitable for a wide range of applications.

One of the notable properties of S50C steel is its high strength. It has a tensile strength of 730 MPa, making it ideal for applications that require high strength and durability. Additionally, S50C steel has good machinability, making it easy to machine and shape into various components, which helps reduce manufacturing costs.

Another favorable property of S50C steel is its excellent heat treatment properties. It can be easily hardened to achieve a high surface hardness, which in turn increases the wear resistance of the material. This makes S50C steel suitable for the production of cutting tools, molds, and dies.

Moreover, S50C steel is a cost-effective material due to its relatively low price compared to other high-grade steels. This makes it a popular choice in the manufacturing industry, particularly in the production of machinery and equipment.

• Material composition -  0.47-0.55% carbon, 0.60-0.90% manganese, and small amounts of phosphorus and sulfur.
• High hardness - With a Brinell hardness of 160-220, Plat S50C steel is relatively hard and able to withstand heavy loads and high stress.
•  Good machinability -easy to machine and can be drilled, turned, and milled with ease.
• Weldable - This type of carbon steel has good weldability, making it suitable for manufacturing parts and components that require welding.
• Versatile -  wide range of applications, including manufacturing of machinery parts, jigs and fixtures, automotive components, and more.

ANNEALING

Full annealing of small C1050 forgings is carried out from 1450-1600ºF (790-870ºC)
followed by furnace cooling at 50ºF (28ºC) per hour, to 1200ºF (650ºC) soaking and air cooling.

NORMALIZING

The normalizing temperature range for this grade is typically 1650-1700ºF (900-925ºC.)

Normalizing is followed by cooling in still air. When forgings are normalized before hardening and tempering or other heat treatment, the upper range of the normalizing temperature is used. When normalizing is the final treatment, the lower temperature range is used.

HARDENING

Hardening of this grade is carried out from an austenitizing temperature of 1500-1600ºF (820-870ºC) followed by oil or water quenching.

Flame and induction hardening may be carried out by heating quickly to the desired case depth and quenching in water or oil. This should be followed by a tempering treatment at 300-400ºF (150-200ºC) to reduce stresses in the case, without affecting its hardness. A surface hardness as high as Rc 61 may be obtained from C1050 by this treatment.

TEMPERING

Tempering after normal hardening and oil or water quenching is carried out at 750-1260º F (400-680ºC) to give the required mechanical properties as determined by practical experience.

WELDABILITY of 1050 steel plate

This grade is readily welded with the correct procedure. Welding in the through-hardened or flame or induction-hardened conditions is not recommended.

Low-hydrogen electrodes are recommended together with preheat at 300-800ºF (150-430ºC to be maintained during welding, Cool slowly in sand or ashes and stress relieve where possible. It may be that in certain instances normalizing may be called for after welding.