Structural Steel Grades

IS 2062:2011 · Table 1 — Hot rolled medium and high tensile structural steel

Hot-rolled structural steel grades used in beams, columns, trusses, and plates. Grade designation = E + minimum yield (MPa). Suffix A/B/BR/C/CR/D/DR/E/ER indicates impact toughness class (charpy testing). Use E250 for most building work, E350+ for industrial/heavy steel structures, weather-resistant grades for bridges & coastal structures.

IS 2062 →Try Steel Section Table →📖 IS 2062 vs ASTM A36

17 items shown

Common Structural Grades (IS 2062:2011)

Grade	Yield	UTS	Elong	Carbon	Weldable	Use
E165 (Fe 290)	165	290 (min)	23	0.23 max	Good	Light fabrication, non-load-bearing work
E250 (Fe 410W)	250	410 (min)	23	0.23 max	Good	General structural — beams, columns, trusses, sheds (most common)
E275 (Fe 430)	275	430 (min)	22	0.22 max	Good	Medium-strength buildings, industrial sheds
E300 (Fe 440)	300	440 (min)	22	0.22 max	Good	Heavier structural work
E350 (Fe 490)	350	490 (min)	22	0.20 max	Very good	Heavy industrial, transmission towers, plant structures
E410 (Fe 540)	410	540 (min)	20	0.20 max	Good (controlled)	High-strength structures, large-span trusses
E450 (Fe 570)	450	570 (min)	20	0.22 max	Good (controlled)	Bridges, marine structures, heavy plant
E550 (Fe 650)	550	650 (min)	16	0.20 max	Special procedures	Pressure vessels, heavy industrial, mining

Quality (Impact / Subzero) Suffixes

Suffix indicates charpy V-notch impact energy at the temperature shown

Grade	Yield	UTS	Elong	Carbon	Weldable	Use
A	—	—	—	—	—	No impact test specified — basic quality
B / BR	—	—	—	—	—	Impact at room temp (27 J at +27°C); BR = killed steel
C / CR	—	—	—	—	—	Impact at 0°C (27 J); CR = killed
D / DR	—	—	—	—	—	Impact at −20°C (27 J); DR = killed
E / ER	—	—	—	—	—	Impact at −40°C (27 J); ER = killed; cryogenic / cold climate

Other Steel Standards

Grade	Yield	UTS	Elong	Carbon	Weldable	Use
IS 2062 E250 BR	250	410	23	—	Default for buildings	Default specification for new building steelwork in India
IS 8500 (high strength)	300–550	—	—	Low	Yes (designed)	Weldable high-strength low-alloy structural steel
IRS M-41 / M-42	240+	—	—	—	—	Indian Railways bridge steel specification
IS 11587 (corrosion resistant)	350+	—	—	—	Yes	Weather-resistant 'Corten'-type steel for coastal structures

Notes

• E250 BR (formerly Fe 410W) is the default grade specified in most Indian building tenders

• Higher yield = thinner sections for the same load, but higher carbon = harder to weld

• All structural steel for welded construction should be killed (suffix R) — better impact toughness

• Modulus of elasticity E = 2 × 10⁵ MPa for all structural steel grades (IS 800 Cl 2.2.4.1)

• Density = 7850 kg/m³ (78.5 kN/m³)

• Verify mill test certificate (TC) for every consignment — yield, UTS, elongation, chemistry

• Galvanizing reduces fatigue strength by ~10% — design accordingly

• Welding electrode must match parent metal grade per IS 814 / IS 7307

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