Dimensions and section properties for C9X20
Structural sectional properties for a C9X20 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | C |
| Section Name | Name | C9X20 |
| Cross Sectional Area | A | 5.87 in2 |
| Section Width | b | 2.65 in |
| Section Depth | d | 9 in |
| Flange thickness | tf | 0.413 in |
| Web thickness | tw | 0.448 in |
| Radius of Gyration about X-X | rx | 3.22 in |
| Radius of Gyrations about Y-Y | ry | 0.64 in |
| Moment of Inertia about X-X | Ix | 60.9 in4 |
| Moment of Intertia about Y-Y | Iy | 2.41 in4 |
| Elastic Section Modulus about X-X | Sx | 13.5 in3 |
| Elastic Section Modulus about Y-Y | Sy | 1.17 in3 |
| Plastic Section Modulus about X-X | Zx | 16.9 in3 |
| Plastic Section Modulus about Y-Y | Zy | 2.46 in3 |
| St. Venant Torsional Constant | J | 0.427 in4 |
| Warping Torsion Constant | Cw | 39.4 in6 |
| Self Weight of section | Weight | 20 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | C |
| Section Name | Name | C9X20 |
| Cross Sectional Area | A | 3787 mm2 |
| Section Width | b | 67 mm |
| Section Depth | d | 229 mm |
| Flange thickness | tf | 10.5 mm |
| Web thickness | tw | 11.4 mm |
| Radius of Gyration about X-X | rx | 82 mm |
| Radius of Gyrations about Y-Y | ry | 16 mm |
| Moment of Inertia about X-X | Ix | 25000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 1000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 221000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 19000 mm3 |
| Plastic Section Modulus about X-X | Zx | 277000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 40000 mm3 |
| St. Venant Torsional Constant | J | 178000 mm4 |
| Warping Torsion Constant | Cw | 11000000000 mm6 |
| Self Weight of section | Weight | 30 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A C9X20 steel section is a standard North American steel section in the C - Channel category. The height and width of the section are 9 in (229 mm) and 2.65 in (67 mm) respectively. It weighs 20 lb/ft (30 kg/m) and has a cross sectional area of 5.87 in2 (3787 mm2).
The section has a tensile yield capacity of:
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The section has a flexural plastic moment capacity of:
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The section has a flexural elastic moment capacity of:
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