sProperty | Value
Mass Density, ρ (g/cm³) | 2.70
Mass per Meter, m (kg/m) | 1.6238
Moment of Inertia, Iₓ / Iᵧ (mm⁴) | 87,118.54
Section Modulus, Zₓ / Zᵧ (mm³) | 4,355.93
Radius of Gyration, rₓ / rᵧ (mm) | 12.04

4040 "SG-Series"2-Slot, 2-Flats

Pros:

• Clean, Flush Outer Finish: Two solid flat walls create a smooth, modern aesthetic that hides internal wiring and eliminates places for dust, chips, or debris to collect.
• Panel & Sheet Mounting: Provides flat, continuous outer faces ideal for direct-mounting side panels, acrylic shields, or sheet metal cladding without gaps.
• Easy Maintenance: Smooth outer surfaces allow for fast wipe-downs in clean environments or workshop settings.

Cons:

• Reduced Bending Rigidity: Spreading mass across thin, flat outer walls yields a lower Second Moment of Inertia (I = 87,118.5356 mm⁴), making it ~11.5% less stiff in beam bending than the S-Series.
• Reduced Mounting Flexibility: With only two open T-slots, mounting options on the flat faces are limited unless panels are drilled directly into the profile.

Typical Applications:

• Cleanroom enclosures, medical equipment stands, and display cabinets.
• Outer perimeter framing where a sleek, professional appearance and dust-free surfaces are required.

Why Choose This Profile? Choose the 2-Slot Flat Wall Section when aesthetics, easy cleaning, and flush side-panel mounting are your top priorities. Its solid outer faces offer a sleek, professional finish for visible exterior frames where 4-side T-slot access is unnecessary.