Steel Beam Sizes / Australia / Welded Beams / 1200 WB 278
1200 WB 278 Steel Beam Dimensions and Properties
ASNZS Welded beams · v2019.11
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
1200 WB 278 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 186.81 lb/ft | 278.00 kg/m |
| Depth, d | 46.06 in | 1,170.00 mm |
| Flange width, bf | 13.78 in | 350.00 mm |
| tw | 0.630 in | 16.000 mm |
| tf | 0.984 in | 25.000 mm |
| Area | 54.90 in² | 35,420.00 mm² |
| Ix | 18,283.10 in⁴ | 7,609,999,872 mm⁴ |
| Iy | 430.05 in⁴ | 179,000,000 mm⁴ |
| Sx | 793.83 in³ | 13,008,547 mm³ |
| Sy | 62.42 in³ | 1,022,857 mm³ |
| Zx | 915.36 in³ | 15,000,000 mm³ |
| Zy | 97.64 in³ | 1,600,000 mm³ |
| rx | 18.25 in | 463.52 mm |
| ry | 2.80 in | 71.09 mm |
| J | 12.45 in⁴ | 5,180,000 mm⁴ |
| Cw | 218,592.78 in⁶ | 58,700,001,705,984 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 1200 WB 278.
Lighter in Welded beams
1000 WB 258
- Weight
- 258.0 kg/m (-7.2%)
- Depth
- 1,010.0 mm (-14%)
- Ix
- 5,430,000,128 mm⁴ (-29%)
Heavier in Welded beams
900 WB 282
- Weight
- 282.0 kg/m (+1.4%)
- Depth
- 924.0 mm (-21%)
- Ix
- 5,729,999,872 mm⁴ (-25%)
Closest Iₓ in Welded beams
1000 WB 322
- Weight
- 322.0 kg/m (+16%)
- Depth
- 1,024.0 mm (-12%)
- Ix
- 7,480,000,000 mm⁴ (-1.7%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology