I was doing this research myself and figured it’d be worth sharing with y’all as well. Pricing out 6’ (72", 1.8m) sections. Online Metals price includes their 15% discount.
1/2" (12.7mm) x 0.035" (0.9mm)
- McMaster-Carr $36.84
- Aircraft Spruce $28.80
- Online Metals $46.08
- Wicks Aircraft $30.96
5/8" (15.9mm) x 0.035" (0.9mm)
- McMaster-Carr $37.16
- Aircraft Spruce $29.70
- Online Metals $48.53
- Wicks Aircraft $31.14
3/4" (15.9mm) x 0.035" (0.9mm)
- McMaster-Carr $38.35
- Aircraft Spruce $45.00
- Online Metals $40.05
- Wicks Aircraft $52.32
S&H for 1 of each size (to Pittsburgh)
- McMaster-Carr $31.38
- Aircraft Spruce $42.94
- Online Metals $36.46
- Wicks Aircraft $36.38
Any other spots that are worth investigating? I’m getting quotes from some more local sources as well, but not hopeful that they’ll have much in the thin wall thickness.