IS 2062:2011 is the Indian Standard for hot-rolled medium and high tensile structural steel, covering grades from E250 to E650. This guide compares:
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9 base grades with 4 sub-qualities each
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Chemical composition requirements
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Mechanical properties
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Impact test requirements
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Recommended applications
Steelmet Industries supplies all IS 2062 grades as:
✅ Plates (3-100mm thickness)
✅ Sections (angles, beams, channels)
✅ Round/square/flat bars
Grade Classification System
| Grade | Minimum Yield Strength (MPa) | Sub-Qualities | Key Feature |
|---|---|---|---|
| E250 | 250 | A, BR, B0, C | Basic structural grade |
| E275 | 275 | A, BR, B0, C | Improved strength |
| E300 | 300 | A, BR, B0, C | – |
| E350 | 350 | A, BR, B0, C | Common construction grade |
| E410 | 410 | A, BR, B0, C | High strength |
| E450 | 450 | A, BR | – |
| E550 | 550 | A, BR | – |
| E600 | 600 | A, BR | – |
| E650 | 650 | A, BR | Highest strength grade |
Sub-Quality Explanation:
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A: No impact test required
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BR: Optional room temperature impact test
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B0: Mandatory 0°C impact test
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C: Mandatory -20°C impact test (best weldability)
Key Comparison Tables
1. Chemical Composition (Selected Grades)
| Element | E250A | E350C | E450A | E650A |
|---|---|---|---|---|
| C (max) | 0.23 | 0.20 | 0.22 | 0.22 |
| Mn (min) | 1.50 | 1.55 | 1.65 | 1.70 |
| P (max) | 0.045 | 0.040 | 0.045 | 0.025 |
| S (max) | 0.045 | 0.040 | 0.045 | 0.015 |
| CE (max) | 0.42 | 0.47 | 0.52 | 0.55 |
*Note: Stricter limits apply for sub-qualities B0/C*
2. Mechanical Properties
| Grade | Tensile (MPa) | Yield (MPa) | Elongation (%) | Impact Test Temp |
|---|---|---|---|---|
| E250 | 410 | 250 | 23 | -20°C (Quality C) |
| E350 | 490 | 350 | 22 | -20°C (Quality C) |
| E450 | 570 | 450 | 20 | Room Temp (BR) |
| E650 | 780 | 650 | 12 | Room Temp (BR) |
Applications Guide
| Grade | Typical Uses |
|---|---|
| E250 | Light structures, roofing |
| E275 | General construction |
| E350 | Bridges, heavy structures |
| E410 | High-rise buildings |
| E450+ | Specialized heavy engineering |
Why Choose Steelmet Industries?
We provide:
✔ All IS 2062 grades in stock
✔ Certified material (EN 10204 3.1/3.2)
✔ Custom cutting & processing
✔ Technical support for grade selection
Contact us today for quotes on IS 2062 steel plates, sections or bars!
FAQ Section
Q: Can E250 be used for welded structures?
A: Yes, but Quality C (-20°C impact tested) is recommended for critical welding.
Q: Difference between E350A and E350C?
A: E350C has stricter impurity controls and mandatory -20°C impact testing.
Conclusion
Understanding IS 2062 grade differences ensures optimal material selection for structural projects. Steelmet Industries stocks all grades from E250 to E650 – request samples or datasheets today!
