IS 2062

Description

IS 2062 – Structural steel plate

IS 2062 is an Indian Standard specification for hot-rolled structural steel, widely used in construction, engineering, and industrial applications. Known for its high strength, weldability, and durability, it is ideal for bridges, buildings, heavy machinery, and offshore structures. Available in grades like E250, E350, and E450, it offers varying yield strengths to suit different applications. It’s low carbon content enhances weldability, while manganese and silicon improve mechanical properties. With proper surface treatment, IS 2062 provides good corrosion resistance and long-term reliability, making it a cost-effective choice for infrastructure projects.

IS 2062 Steel Grades & Classification

1. Strength-Based Grades

• E250 (Fe 410W) – Standard structural steel with 250 MPa yield strength
• E300 (Fe 440W) – Medium-strength steel with 300 MPa yield strength
• E350 (Fe 490W) – High-strength steel with 350 MPa yield strength
• E410 (Fe 540W) – Heavy-duty steel with 410 MPa yield strength
• E450 (Fe 570W) – Superior tensile strength for advanced structural applications
• E550, E600, E650, E700 – Ultra-high strength steel for extreme applications

2. Impact Resistance Classification

• Grade A – No impact test required
• Grade B – Impact tested at 0°C
• Grade C – Impact tested at -20°C (used in cold environments)

Chemical Composition of IS 2062 Steel

The composition varies based on grade, but common elements include:

Element	E250 (Max %)	E350 (Max %)	E450 (Max %)
Carbon (C)	0.23%	0.20%	0.18%
Manganese (Mn)	1.50%	1.55%	1.60%
Silicon (Si)	0.40%	0.45%	0.50%
Sulfur (S)	0.05%	0.04%	0.04%
Phosphorus (P)	0.05%	0.04%	0.04%
Carbon Equivalent (CE)	0.42 max	0.45 max	0.47 max

Mechanical Properties of IS 2062 Steel

Property	E250	E350	E450
Yield Strength (MPa)	≥250	≥350	≥450
Tensile Strength (MPa)	410 – 550	490 – 620	570 – 720
Elongation (%)	≥23	≥22	≥20
Impact Strength (J at 0°C)	27	27	27
Brinell Hardness (HBW)	130-180	150-200	180-240

Technical Properties & Features

• Density – 7.85 g/cm³ (Same as structural steel)
• Melting Point – ~1,500°C
• Thermal Conductivity – 50.2 W/m·K
• Electrical Resistivity – 0.1 – 0.2 µΩ·m
• Modulus of Elasticity – 200 GPa (approx.)

 

• Cold Bending: Good cold-forming properties
• Weldability: Suitable for arc welding, MIG/TIG welding
• Machinability: Easily machinable with conventional tools
• Corrosion Resistance: Requires coating for long-term protection

Equivalent Standards for IS 2062 Steel

Standard	Equivalent Grade
ASTM (USA)	ASTM A36
EN (Europe)	EN 10025 S235JR
JIS (Japan)	JIS G3101 SS400
DIN (Germany)	St37-2

Applications of IS 2062 Steel

• Structural Engineering: Bridges, high-rise buildings, metro projects
• Construction Industry: PEB structures, steel frames, beams, columns
• Industrial Machinery: Heavy equipment, cranes, conveyors
• Oil & Gas Industry: Offshore platforms, storage tanks, pipelines
• Shipbuilding & Marine: Hull structures, ship decks, container vessels
• Railway Industry: Tracks, wagons, coaches, railway bridges
• Transmission Towers: Power grid structures, communication towers