Introduction

IS 2062 Bright Bar is a standard carbon steel grade that is commonly used for structural and engineering applications. It is primarily utilized in situations where moderate strength, good machinability, and resistance to wear are required. This steel is often used in the production of parts that will undergo welding, bending, and fabrication processes. Its form as a bright bar offers a smooth, polished surface ideal for precision machining and surface finishing.

IS 2062 is also a widely recognized standard in the Indian market and is largely used in construction, automotive, and general engineering sectors. The material offers a balance between strength and ductility, making it versatile for various applications.

Properties of IS 2062 Bright Bar:

IS 2062 Bright Bar is known for the following key properties:

  • Tensile Strength: Provides good tensile strength, making it ideal for use in heavy load-bearing applications.
  • Hardness: While not as hard as high-alloy steels, IS 2062 still offers moderate hardness for wear resistance in structural applications.
  • Ductility: The grade has good ductility, allowing for forming and shaping processes without cracking or breaking.
  • Weldability: IS 2062 can be easily welded using conventional methods like MIG and TIG welding.
  • Machinability: Exhibits good machinability, allowing for ease in machining operations like turning, drilling, and milling.

Uses/Applications:

IS 2062 Bright Bar is used in a wide range of applications, including:

  • Structural Applications: IS 2062 is widely used in the construction of buildings, bridges, and other infrastructures.
  • Automotive Parts: It is used for manufacturing axles, shafts, and gears.
  • Heavy Engineering: This grade is used in the production of machinery parts like spindles, shafts, and supporting structures.
  • Fasteners and Bolts: Its tensile strength and good machining properties make it ideal for manufacturing bolts, nuts, and studs.
  • General Fabrication: For structural frames, supports, and other fabricated components.

Chemical Composition:

The chemical composition of IS 2062 Bright Bar is designed to provide a balance between strength and ductility, suitable for structural and general engineering applications. The typical chemical composition of IS 2062 is as follows:

Element Composition Range
Carbon (C) 0.16% – 0.22%
Silicon (Si) 0.30% – 0.60%
Manganese (Mn) 0.60% – 1.00%
Phosphorus (P) ≤ 0.05%
Sulfur (S) ≤ 0.05%
Iron (Fe) Balance

This composition ensures that IS 2062 Bright Bar possesses the required mechanical properties for engineering and structural applications.

Heat Treatment:

IS 2062 Bright Bar can undergo different heat treatments to achieve the desired properties:

  • Annealing: Heat to 700–750°C and allow slow cooling. This process reduces hardness and enhances ductility.
  • Normalizing: Heat to 850–900°C and allow to cool in air. This improves the toughness and refines the grain structure.
  • Quenching and Tempering: To achieve higher strength and hardness, IS 2062 can be quenched in water or oil at 900–950°C followed by tempering at 600–650°C.

Proper heat treatment ensures the material’s strength, hardness, and toughness are optimized for specific applications.

Mechanical Properties:

The mechanical properties of IS 2062 Bright Bar make it suitable for a wide range of structural and mechanical applications. These properties, depending on the heat treatment and processing conditions, are as follows:

Condition Yield Strength (MPa) Tensile Strength (MPa) Elongation (%)
As-rolled ≥ 250 410-550 ≥ 20
Normalized ≥ 280 480-630 ≥ 18

These properties make IS 2062 Bright Bar suitable for a variety of applications requiring medium strength and good ductility.

Physical Properties:

The physical properties of IS 2062 Bright Bar contribute to its performance in high-stress applications:

  • Density: 7.85 g/cm³ (typical for mild steels).
  • Modulus of Elasticity: 200 GPa, providing resistance to deformation under stress.
  • Melting Point: 1450–1530°C, allowing it to withstand high temperatures in industrial applications.

These values play a crucial role in the material’s behavior under mechanical stress and high-temperature environments.

Forging:

IS 2062 Bright Bar can be easily forged into a variety of shapes and sizes. The steel should be heated to a temperature range of 1100°C to 1250°C for effective forging. It is important to maintain the temperature within this range to avoid overheating, which could affect the material’s mechanical properties.

Dimensional Tolerances:

IS 2062 Bright Bar is available in a wide range of sizes and forms with tight tolerances to meet various engineering requirements:

  • Round Bars: Diameters range from 6 mm to 100 mm.
  • Square Bars: Sizes range from 10 mm to 50 mm.
  • Hexagonal Bars: Available in sizes from 10 mm to 40 mm.
  • Flat Bars: Width and thickness range from 20 mm to 150 mm.

These bars are provided with tight tolerances to ensure precision in fabricated components.

Machinability:

IS 2062 Bright Bar exhibits good machinability, making it suitable for a wide range of machining operations such as:

  • Turning: Easily machined on CNC and lathe machines.
  • Milling and Drilling: Suitable for high-speed machining with conventional tools.
  • Grinding: Excellent for grinding operations that require a smooth surface finish.

Its machinability, combined with its ability to maintain its mechanical properties after machining, makes IS 2062 an excellent choice for precision parts and components.

Corrosion Resistance:

While IS 2062 Bright Bar does not have exceptional resistance to corrosion, it performs adequately in environments with mild exposure to moisture and chemicals. For applications in highly corrosive environments, it is recommended to apply protective coatings such as galvanizing, powder coating, or painting to enhance the corrosion resistance of IS 2062 steel.

Weldability:

IS 2062 Bright Bar is highly weldable using conventional welding methods such as:

  • MIG (Metal Inert Gas) Welding
  • TIG (Tungsten Inert Gas) Welding
  • Stick Welding (SMAW)

It is important to note that preheating may be required for thicker sections to avoid issues such as cracking, especially when the section thickness exceeds 20 mm. Post-weld heat treatment can be performed to reduce stress and enhance mechanical properties.

Available Form:

IS 2062 Bright Bar is available in the following forms:

  • Round Bars: Used for shafts, rods, and other cylindrical components.
  • Square Bars: Ideal for machining and precision work.
  • Hexagonal Bars: Used for specific components that require a hexagonal shape.
  • Flat Bars: Used in manufacturing, fabrication, and structural work.
  • Custom Shapes: Specially manufactured forms for specific needs.

Conclusion:

C35 carbon steel is a versatile material offering a good balance between strength, machinability, and toughness. It is widely used in automotive, machinery, and structural applications due to its moderate carbon content and ability to undergo heat treatment. Though its corrosion resistance and weldability are modest, proper surface treatments can enhance performance.

Related Products : CK45, EN8, Bright Bar, SAE 1010, IS 2062, SAE 1018,  Maps