IS 2062 E250 (Fe 410) — Mild Steel (MS) Grade Specification, Properties & Equivalents

IS 2062 E250 (Fe 410) is a high-strength, low-alloy (HSLA) structural steel grade widely adopted across India's burgeoning construction and infrastructure sectors. Specifically, this designation signifies a hot-rolled steel with a minimum yield strength of 250 MPa, commonly referred to by its older nomenclature, Fe 410. Fabricators and structural engineers in India rely on IS 2062 E250 (Fe 410) for its dependable mechanical properties, excellent weldability, and cost-effectiveness in applications ranging from building frameworks and bridges to heavy machinery components and industrial plant structures. The Bureau of Indian Standards (BIS) governs its production, ensuring consistent quality that meets the rigorous demands of Indian industrial applications. Whether used for beams, columns, or plates, IS 2062 E250 (Fe 410) provides the necessary strength and ductility for robust and long-lasting structures.

Chemical Composition of IS 2062 E250 (Fe 410)

IS 2062 E250 (Fe 410) Chemical Composition

Note: Specific ladle analysis may vary slightly based on mill practices and applicable standards within IS 2062.

Mechanical Properties of IS 2062 E250 (Fe 410)

IS 2062 E250 (Fe 410) Mechanical Properties

Note: Mechanical properties for IS 2062 E250 (Fe 410) are typically tested at ambient temperature as per standard specifications.

IS 2062 E250 (Fe 410) Available Forms in India

Note: Availability of specific sizes for IS 2062 E250 (Fe 410) can vary; check with leading Indian steel mills and stockists.

Real-world Applications of IS 2062 E250 (Fe 410)

• Construction: Structural framing, columns, beams, and supporting elements in commercial and residential buildings.
• Infrastructure: Bridge construction, flyovers, and pre-fabricated components for rapid deployment.
• Automotive: Chassis and frame components for trucks, buses, and heavy vehicles.
• Heavy Engineering: Manufacturing of industrial machinery, gearboxes, and machine tool bases.
• Storage Tanks: Fabrication of storage vessels and silos for industrial materials.
• Pipelines: Used in the construction of structural supports and non-critical piping systems.
• General Fabrication: General structural work, platforms, and support structures across various industries.
• Power Sector: Components for transmission towers and supporting structures.

Machinability & Weldability of IS 2062 E250 (Fe 410)

The machinability of IS 2062 E250 (Fe 410) steel is considered good, owing to its relatively low carbon content and balanced alloying elements. Standard machining operations such as turning, milling, drilling, and tapping can be effectively performed using standard HSS or carbide tooling. Moderate cutting speeds are recommended to avoid excessive tool wear, with copious amounts of coolant essential for heat dissipation. Chip formation is generally manageable. When it comes to welding, IS 2062 E250 (Fe 410) exhibits excellent weldability, suitable for various fusion and resistance welding processes. Preheating is generally not required for thicknesses below 15mm, but for thicker sections, a preheat of 50-100°C may be beneficial to prevent cold cracking, especially in higher-stress areas. Low-hydrogen electrodes (e.g., E7018 variants) are recommended for shielded metal arc welding (SMAW). Gas metal arc welding (GMAW) and submerged arc welding (SAW) are also commonly employed. Post-weld heat treatment (PWHT) is typically not necessary for most structural applications of IS 2062 E250 (Fe 410), but should be considered if specific service conditions or subsequent forming operations necessitate stress relief.

Heat Treatment & Processing of IS 2062 E250 (Fe 410)

IS 2062 E250 (Fe 410) is primarily supplied in the hot-rolled condition and typically does not require further heat treatment for most structural applications due to its inherent strength and ductility, which are achieved during the controlled rolling process. However, if processing necessitates softening or stress relief, annealing can be performed by heating IS 2062 E250 (Fe 410) to a temperature between 840°C and 900°C, followed by slow cooling in the furnace. This process helps to refine the grain structure and relieve residual stresses. Normalizing, involving heating to approximately 900°C followed by air cooling, can also be employed to achieve a more uniform and finer grain structure, enhancing toughness. Hardening and tempering are not standard processing routes for IS 2062 E250 (Fe 410) in its typical structural roles. Attempting to harden this grade through rapid quenching and tempering might lead to unpredictable results or embrittlement given its composition. The primary advantage of IS 2062 E250 (Fe 410) lies in its 'as-rolled' properties, making it economical and readily usable post-fabrication.

Sourcing IS 2062 E250 (Fe 410) in India

IS 2062 E250 (Fe 410) structural steel is a cornerstone material readily available from major Indian steel manufacturers such as SAIL, JSW Steel, Tata Steel, and RINL. Stockists and distributors located in major industrial hubs like Mumbai, Pune, Chennai, Ahmedabad, and Delhi maintain substantial inventories, ensuring quick turnaround times for fabrication projects. Minimum Order Quantities (MOQs) can vary; typically, stockists cater to smaller demands starting from a few kilograms, while mills might have higher MOQs, especially for specific custom sizes or prime material. Price bands for IS 2062 E250 (Fe 410) typically range from ₹55 to ₹70 per kilogram, fluctuating based on market conditions, raw material costs, and quantity ordered. Material Test Certificates (MTC) detailing chemical composition and mechanical properties as per IS 2062 standards are mandatory and routinely provided by reputable suppliers. Positive Material Identification (PMI) services are available upon request for critical applications to verify alloy compliance.

International Equivalents for IS 2062 E250 (Fe 410)

Note: Direct equivalents are approximate; always consult specific standards for precise chemical and mechanical property requirements of IS 2062 E250 (Fe 410).

FAQs about IS 2062 E250 (Fe 410)