StructureCalcsL12X12X1-1/8
Angle · AISC Shapes Database v15.0 · United States
L12X12X1-1/8 is a single angle with 305 × 305 mm legs, 28.7 mm thick, weighing 129.8 kg/m. The dimensions below are the published AISC Shapes Database v15.0 values; the drawing is generated from them.
Single angles serve as braces, cleats and connection material. An angle bends about tilted principal axes, so the derived principal values below carry their angle.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Leg length, d | 305 mm | 12.00 in |
| Thickness, t | 28.7 mm | 1.130 in |
| Mass per metre | 129.8 kg/m | 87.2 lb/ft |
| Area, A | 16,645 mm² | 25.80 in² |
| Second moment, Ix | 145,680,999 mm⁴ | 350.0 in⁴ |
| Second moment, Iy | 145,680,999 mm⁴ | 350.0 in⁴ |
Derived section properties
Integrated from a square-cornered outline — the fillet radii this family really has are not drawn, so the computed values differ slightly from published. For L12X12X1-1/8 the computed area is 0.16% from published and Ix 1.25%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Sx | 676,590 mm³ |
| Elastic modulus, Sy | 676,590 mm³ |
| Plastic modulus, Zx | 1,218,892 mm³ |
| Plastic modulus, Zy | 1,218,892 mm³ |
| Radius of gyration, rx | 94.1 mm |
| Radius of gyration, ry | 94.1 mm |
| Principal maximum, Imax (derived) | 234,981,455 mm⁴ |
| Principal minimum, Imin (derived) | 60,031,731 mm⁴ |
| Principal axis angle, θp | 45.0° |
S is the elastic modulus and Z the plastic modulus, following AISC 360. Australian and British practice reverse the letters.
Neighbouring sizes
Where these numbers come from
Published AISC Shapes Database v15.0 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API