Mild Steel TMT Bars

Product Description

Mild Steel Thermo-Mechanically Treated (TMT) bars are fundamental to modern construction, offering a blend of strength, flexibility, and durability essential for reinforcing concrete structures.‹

Manufacturing Process:

The production of TMT bars involves several key stages:‹

Raw Material Processing: Iron ore undergoes beneficiation to increase its iron content, followed by mixing with coal and dolomite. This mixture is melted in a blast furnace to produce molten iron. 

Steel Making: The molten iron is refined in an oxygen furnace, where oxygen is combined with carbon to remove impurities, resulting in steel with the desired composition. 

Continuous Casting: The refined steel is poured into a continuous casting machine to produce billets with a cross-section of 165mm

Hot Rolling: The billets are heated to approximately 1200C to 1250C and then passed through rolling mills to attain the required size and shape of the reinforcement bars. 

Quenching: The hot rolled bars undergo rapid cooling using water sprays, hardening the outer layer to form martensite while the core remains hot and austenitic. 

Applications:

TMT bars are widely used in various construction projects, including:

• Residential and Commercial Buildings: Providing structural support for columns, beams, and slabs.

• Infrastructure Projects: Utilized in bridges, dams, and flyovers due to their strength and durability.

• Industrial Structures: Suitable for factories and warehouses requiring robust frameworks.

• Understanding these aspects of Mild Steel TMT bars can assist in selecting the appropriate materials for construction projects, ensuring safety, durability, and cost-effectiveness.