IS 2062:1999 is the Indian Standard (BIS) for steel for structural use - specification. This standard specifies the requirements for hot-rolled structural steel plates, sections, and bars. It defines critical chemical compositions, carbon equivalents, and mechanical properties such as yield stress and tensile strength for various structural steel grades including E250 and E350.
Earlier specification for hot rolled medium and high tensile structural steel plates, sections, and bars for general structural purposes.
Quick Reference — IS 2062:1999 Structural Steel (legacy)
Hot-rolled medium and high-tensile structural steel — older edition. Yield, tensile, elongation, chemistry.
| Reference | Value | Clause |
|---|
| Grade Fe-410 — yield strength | 250 N/mm² (≤ 20 mm thick) | Cl. 5.2 (Table 2) |
| Grade Fe-410 — tensile strength | 410 N/mm² minimum | Cl. 5.2 (Table 2) |
| Grade Fe-410 — elongation | 23 % minimum | Cl. 5.2 (Table 2) |
| Grade Fe-440 — yield strength | 300 N/mm² (≤ 20 mm) | Cl. 5.2 |
| Grade Fe-490 — yield strength | 350 N/mm² (≤ 20 mm) | Cl. 5.2 |
| Grade Fe-540 — yield strength | 410 N/mm² (≤ 20 mm) | Cl. 5.2 |
| Grade Fe-590 — yield strength | 450 N/mm² (≤ 20 mm) | Cl. 5.2 |
| Carbon (max) — Fe-410W | 0.23 % | Cl. 5.1 (Table 1) |
| Carbon (max) — Fe-410B | 0.22 % | Cl. 5.1 (Table 1) |
| Manganese (max) — Fe-410W | 1.50 % | Cl. 5.1 (Table 1) |
| Sulphur (max) | 0.045 % | Cl. 5.1 (Table 1) |
| Phosphorus (max) | 0.045 % | Cl. 5.1 (Table 1) |
| Carbon equivalent (CE) — Fe-410W | ≤ 0.42 | Cl. 5.1.2 |
| Bend test — 180° round mandrel | diameter = 2 × thickness (low grade) | Cl. 7.2 |
| Charpy V-notch — Fe-410W (Cat W) | 27 J at 0 °C | Cl. 6 (Table 3) |
| Charpy V-notch — Fe-410W (Cat A) | not required | Cl. 6 (Table 3) |
| Density | 7850 kg/m³ (≈ 78.5 kN/m³) | Cl. 5.4 |
| Modulus of elasticity E | 2.0 × 10⁵ N/mm² | (IS 800 Cl. 2.2.4.1) |
| Surface defects — depth limit | ≤ 5 % of thickness | Cl. 8.4 |
| Standard plate thicknesses | 5, 6, 8, 10, 12, 16, 20, 25, 32, 40 mm | (commercial supply) |
⚠ Superseded by IS 2062:2011 which introduced E-grade nomenclature and through-thickness Z-quality. Older edition still cited on legacy stockyards / mill certificates.
Overview
- Status
- Superseded — superseded by IS 2062:2011
- Usage level
- Essential
- Domain
- Structural Engineering — Bridges and Bridge Engineering
- Type
- Specification
Also on InfraLens for IS 2062
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! Grade A (e.g., E250A) is suitable for general static loads, while Grade B (E250B) requires Charpy impact testing and is meant for structures subject to dynamic loading.
! Yield stress decreases as the thickness of the steel section or plate increases; always refer to Table 2 based on the actual material thickness.
! Ensure Carbon Equivalent (CE) is calculated and within limits to ensure weldability and prevent cold cracking.
Frequently referenced clauses
structural steelcarbon steelmicro-alloyed steelsteel platessteel sections
International Equivalents
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International Comparison — Coming Soon
We're adding equivalent international standards for this code.
Key Values5
Quick Reference Values
Yield stress for E250 (thickness < 20mm)250 MPa
Tensile strength for E250410 MPa
Minimum percentage elongation for E25023%
Max Carbon content for E250 Grade A0.23%
Max Carbon Equivalent (CE) for E2500.42
Key Formulas
CE = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15 — Carbon Equivalent Formula
Tables & Referenced Sections
Key Tables
Table 1 - Chemical Composition
Table 2 - Mechanical Properties
Key Clauses
Clause 6 - Chemical Composition
Clause 7 - Mechanical Properties
Clause 8 - Freedom from Defects
Clause 11 - Tolerances
Frequently Asked Questions4
What is the most common grade of steel used in Indian construction?+
E250 Grade A (formerly Fe 410 WA), which has a minimum yield stress of 250 MPa.
What is the difference between Grade A, B, and C structural steel?+
Grade A is for standard static loading, Grade B mandates Charpy impact testing at room temperature for dynamic loads, and Grade C mandates impact testing at sub-zero temperatures.
What is the tensile strength of E250 steel?+
The ultimate tensile strength (UTS) is 410 MPa as per Table 2.
Is IS 2062:1999 still active?+
No, it was superseded by IS 2062:2006, and subsequently revised to IS 2062:2011.
QA/QC Inspection Templates
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QA/QC templates coming soon for this code.