EN31 VD Route And Annealed Rolled Round Bar

Product Description

EN31 steel, also known as SAE 52100, is a high-carbon alloy steel known for its excellent hardness, compressive strength, and abrasion resistance. It is widely used in applications requiring high wear resistance and durability, such as bearings, tools, and machine components.

• Composition: EN31 steel typically contains 0.95-1.10% carbon, 0.40-0.70% manganese, 1.20-1.60% chromium, and small amounts of silicon, sulfur, and phosphorus1.
• Mechanical Properties: It offers high tensile strength, typically around 750-800 N/mm, and a yield strength of about 450-500 N/mm2.
• Heat Treatment: EN31 can be heat treated to improve its mechanical properties. It is often supplied in the annealed condition to enhance its machinability and toughness3.

The Vacuum Degassing (VD) route is a steelmaking process that removes dissolved gases like hydrogen and nitrogen from the molten steel. This process improves the steels quality by reducing the risk of defects and enhancing its mechanical properties1.

Annealed round bars of EN31 steel are heat-treated to relieve internal stresses and improve machinability. The annealing process involves heating the steel to a specific temperature (typically around 800C) and then slowly cooling it. This results in a softer and more ductile material, making it easier to machine and form2.

EN31 steel round bars are widely used in the manufacturing of:

• Bearings
• Tools
• Machine components
• Shafts
• Gears