I-Beam Weight Calculator User Guide
I-Beam steel is named for its I-shaped cross-section. It features excellent bending resistance, high load capacity, and easy installation. Widely used in factory buildings, bridges, equipment platforms, support structures, and construction load-bearing beams.
Supported I-Beam Types
- ✅ Standard Series (GB/T 706-2016):
- Standard I-Beam: Models like I10, I12, I16, I20a, I25b, I32c
- Light I-Beam: Same model with "Q" or "L" suffix (thinner web, lighter weight)
- ✅ Material: Q235B, Q355B Carbon Steel (density 7.85 g/cm³)
- ✅ Common Models: I10 ~ I63c, covering common engineering specifications
I-Beam Weight Formula
Weight (kg) = Section Area (cm²) × Length (m) × 0.785
Where:
- Section Area = h×t1 + 2×(b-t1)×t2
- 0.785 is the simplified density coefficient (7.85 g/cm³ ÷ 1000)
Common I-Beam Theoretical Weight Table (GB/T 706-2016, Q235B, Density 7.85 g/cm³)
| Model | Size (mm) H×B×tw |
Weight (kg/m) | 12m Weight (kg) | Note |
|---|---|---|---|---|
| I10 | 100×68×4.5 | 11.26 | 135.1 | Standard |
| I12 | 120×74×5.0 | 13.98 | 167.8 | Standard |
| I16 | 160×88×6.0 | 20.51 | 246.1 | Standard |
| I20a | 200×100×7.0 | 27.93 | 335.2 | Standard |
| I20b | 200×102×9.0 | 31.07 | 372.8 | Wide Flange |
| I25a | 250×116×8.0 | 38.11 | 457.3 | Standard |
| I25b | 250×118×10.0 | 42.03 | 504.4 | Wide Flange |
| I32b | 320×134×11.5 | 61.05 | 732.6 | Standard |
Use Cases
- Structural engineering design and load calculation
- Construction material planning and procurement
- Steel supplier quotes and shipping verification
- Project budgeting and cost accounting
- Equipment manufacturing: platforms, frames, support structures
Use our professional I-beam weight calculator for accurate material planning and cost savings!
