IS2062 STEEL

What are IS 2062 Steel Round Bars?

IS 2062 Round Bars are solid, cylindrical steel bars manufactured under the Bureau of Indian Standards (BIS) specification for Hot Rolled Medium and High Tensile Structural Steel. Widely regarded as the standard for general engineering and construction in India, these bars are prized for their excellent weldability, ductility, and superior structural integrity.

Often referred to as Mild Steel (MS) Rounds or structural rounds, they form the fundamental support components in industries ranging from infrastructure development and power plants to automotive engineering.

Understanding the Standard: IS 2062

The IS 2062 standard governs the chemical and mechanical properties of steel used for structural purposes. Unlike generic steel, IS 2062 certified material guarantees a specific Minimum Yield Strength (MYS) and tensile strength, ensuring safety and reliability in critical load-bearing applications.

While the standard covers various profiles (beams, channels, angles), the round bar profile is unique for its versatility in machining, threading, and forging.

Grade E250: The Industry Standard (Fe 410W)

Grade E250 is the most widely consumed structural steel grade in India. Historically known as Grade A or Fe 410W, it serves as the baseline for general-purpose construction.

• Yield Strength: Minimum 250 MPa.

• Tensile Strength: 410 MPa.

• Key Characteristics:

  • High Ductility: Can be bent and formed without cracking.

  • Excellent Weldability: Low carbon content (approx. 0.23% max) allows for easy welding without pre-heating.

  • Cost-Effective: Offers the best balance of strength-to-cost for non-critical structures.

• Typical Applications: E250 round bars are used in general fabrication, window grills, gates, automotive chassis components, and foundation bolts where extreme loads are not expected.

Grade E350: High Tensile Structural Steel (Fe 490W)

Grade E350 is a high-strength variant designed for heavy-duty applications. Known as Fe 490W, this grade is engineered to support heavier loads with a lighter material footprint.

• Yield Strength: Minimum 350 MPa.

• Tensile Strength: 490 MPa.

• Key Characteristics:

  • Superior Load Bearing: Supports significantly higher loads than E250, allowing engineers to use thinner diameters to achieve the same strength.

  • Micro-Alloyed: Often includes micro-alloying elements like Niobium or Vanadium to boost strength without sacrificing weldability.

  • Impact Resistance: Better suited for dynamic loading conditions (vibrations, moving loads).

• Typical Applications: E350 round bars are essential in high-rise construction, heavy machinery shafts, crane booms, transmission towers, and offshore structures.