Steel Section Catalog
ISA 30x20x3
IS — Angle Section
Angle sections (L shapes) are used for bracing, connections, lintels, and built-up members. Available in equal and unequal leg configurations.
Also known as: ISA 30x20x3 (UK)
The ISA 30x20x3 steel profile weighs 1.1 kg/m (0.74 lb/ft), has a depth of 30 mm (1.18 in), flange width 20 mm (0.79 in). Cross-sectional area: 141 mm². Moment of inertia Ix = 1.27 cm⁴, Iy = 0.46 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 30 mm | 1.18 in |
| Width (b) | 20 mm | 0.79 in |
| Thickness (t) | 3 mm | 0.12 in |
| Fillet radius (r) | 3.5 mm | 0.14 in |
| Weight | 1.1 kg/m | 0.74 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 141 mm² | 0.219 in² |
| Moment of inertia (Ix) | 1.27 cm⁴ | 0.03 in⁴ |
| Moment of inertia (Iy) | 0.46 cm⁴ | 0.01 in⁴ |
| Elastic section modulus (Sx) | 0.64 cm³ | 0.039 in³ |
| Elastic section modulus (Sy) | 0.31 cm³ | 0.019 in³ |
| Plastic section modulus (Zx) | 0.96 cm³ | 0.059 in³ |
| Plastic section modulus (Zy) | 0.46 cm³ | 0.028 in³ |
| Radius of gyration (rx) | 0.95 cm | 0.374 in |
| Radius of gyration (ry) | 0.57 cm | 0.224 in |
Beam Calculator— ISA 30x20x3
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISA 30x20x3
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
6643.70 mm
L/1
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
