| Chemical Composition | Fe-550 | Fe-500D |
|---|---|---|
| Carbon | 0.30 | 0.25 |
| Sulphur (% max) | 0.055 | 0.040 |
| Phosphorous (% max) | 0.050 | 0.040 |
| Sulphur + Phosphorus (% max) | 0.100 | 0.075 |
| Carbon Equivalent (CEQ) (% max) | 0.42 | 0.42 |
| Manganese (% min) | 0.50 | 0.50 |
| Mechanical Properties | Fe-550 (Minimum) | Fe-500D (Minimum) |
|---|---|---|
| Yield Stress | 550 N/mm2 | 550 N/mm2 |
| Tensile Strength | 585 N/mm2 | 565 N/mm2 |
| UTS / YS Ratio | 1.06 | 1.10 |
| Elongation | 10% | 16% |
| Total Elongation at Maximum Force | - | 5% |
| Size | Median Weight(in KGs) | BIS Range(Min - Max) |
|---|---|---|
| 8 | 0.395 | 0.367 - 0.423 |
| 10 | 0.617 | 0.574 - 0.660 |
| 12 | 0.888 | 0.844 - 0.932 |
| 16 | 1.578 | 1.499 - 1.657 |
| 20 | 2.466 | 2.392 - 2.540 |
| 25 | 3.854 | 3.738 - 3.970 |
| 32 | 6.313 | 6.124 - 6.502 |
* Section weights per meter are standard for both Fe-500D & Fe-550.
