L6x6x5/8 — Dimensions, Weight & Section Properties
Steel angle (L-shape) per ASTM A6 / AISC Steel Construction Manual
L6x6x5/8 is a hot-rolled steel angle with equal 6 in (152.4 mm) legs, 0.625 in thick, weighing 24.2 pounds per foot (36 kg/m). All values below are the standard AISC published section properties, with metric equivalents alongside.
Typical uses: bracing, lintels, shelf supports, frames, and connection material. Angles are weak about their minor axis — long unbraced angles need lateral restraint. For a quick check, see the deflection example below or open the beam calculator.
Dimensions
| Long leg | 6 in (152.4 mm) |
| Equal leg | 6 in (152.4 mm) |
| Thickness t | 0.625 in (15.9 mm) |
Weight & Cross-Section
| Weight per foot | 24.2 lb/ft (36 kg/m) |
| 20 ft bar | 484 lb |
| 40 ft bar | 968 lb |
| Area A | 7.13 in² (46 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 24.1 in⁴ (1,003 cm⁴) |
| Section modulus Sx | 5.64 in³ (92 cm³) |
| Radius of gyration rx | 1.84 in |
| Moment of inertia Iy | 24.1 in⁴ (1,003 cm⁴) |
| Section modulus Sy | 5.64 in³ (92 cm³) |
| Radius of gyration ry | 1.84 in |
Compared with the neighbouring sizes
| Shape | legs (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|---|---|---|---|---|---|
| L6x6x1/2 | 6 × 6 | 19.6 | 19.9 | 4.59 | −19 % | −17 % |
| L6x6x5/8 (this page) | 6 × 6 | 24.2 | 24.1 | 5.64 | — | — |
Deflection example
A simply supported L6x6x5/8 spanning 10 ft with a 10 kip point load at midspan deflects 0.52 in (E = 29,000 ksi, Ix = 24.1 in⁴). The L/360 serviceability limit for this span is 0.33 in — the shape does NOT pass this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a L6x6x5/8 angle weigh?
L6x6x5/8 weighs 24.2 pounds per foot (36 kg/m). A 20 ft bar weighs 484 lb and a 40 ft bar 968 lb.
What are the dimensions of a L6x6x5/8?
L6x6x5/8 has two equal 6 in (152.4 mm) legs, both 0.625 in thick. Angle legs are measured outside-to-outside, and both legs share the same thickness.
What are the dimensions of a L6x6x5/8 in mm?
L6x6x5/8 has two equal 152.4 mm legs, 15.9 mm thick. In metric section properties: Ix = 1,003 cm⁴, Sx = 92 cm³.
How much does a L6x6x5/8 weigh in kg?
36 kg per meter. A 6 m bar weighs 216 kg and a 12 m bar 432 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a L6x6x5/8?
About the strong axis, Ix = 24.1 in⁴ (1,003 cm⁴) with section modulus Sx = 5.64 in³. About the weak axis, Iy = 24.1 in⁴ and Sy = 5.64 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
L6x6x5/8 or L6x6x1/2 — what does one size down change?
L6x6x1/2 is about 19% lighter (19.6 vs 24.2 lb/ft) but about 17% less stiff (Ix 19.9 vs 24.1 in⁴). Check deflection before downsizing — stiffness falls much faster than weight.
Values are entered from the governing standard’s published tables and cross-checked programmatically against its mass and section formulas before publication. Spotted an error? Write to advertising@metalabout.net — verified corrections ship within days. About