Columbia-MBF aluminum rigid conduit partners light weight and corrosion resistance to deliver a complete-line of easy to install, limited maintenance conduit whenever specifications call for aluminum.
Columbia-MBF provides a diverse assortment of couplings, nipples and elbows for Aluminum Rigid Conduit. Rigid Aluminum Conduit and Fittings are manufactured of 6063 alloy in temper designation T-1.
Columbia-MBF, a leading supplier of steel conduit and tubing, now offers a broad line of rigid aluminum conduit, elbows, nipples and couplings. When your specifications call for the properties of aluminum, Columbia-MBF delivers.
Features
- Light Weight – Approximately one-third the weight of steel
- Corrosion Resistant – Aluminum resists most corrosive atmospheres in industrial environments
- Easy to Install – Can be easily cut, bent and threaded without special tools
- Low Maintenance – Doesn’t leave discoloring streaks or stains.
Specification Data
Alloy: Columbia-MBF Rigid Aluminum Conduits and Fittings are all manufactured of 6063 alloy in temper designation T-1 to ensure maximum performance in electrical installations.
Standards: Columbia-MBF Rigid Aluminum Conduit is CSA certified to CSA C22.2 No. 45, “Standard for Electrical Rigid Metal Conduit Aluminum, Red Brass and Stainless Steel”, and is manufactured in accordance with ANSI C80.5.
Thread Protectors: Color coded end caps keep threads clean and sharp and help provide trade size recognition. Even sizes are blue; 1/2 trade sizes are black; and 1/4 trade sizes are red.
Certified to Canadian Standards Association Safety Standard CSA C22.2 No.45.2
Manufactured in accordance with ANSI C80.5
Aluminum Rigid Conduit (ARC)
| Trade Size | Metric Designator | Outside Diameter1 | Nominal Wall Thickness2 | Approximate Weight per 100 Ft. (30.5M) | Bundle Quantity | ||||
|---|---|---|---|---|---|---|---|---|---|
| in | mm | in | mm | lb | kg | ft | m | ||
| 1/2 | 16 | 0.84 | 21.34 | 0.104 | 2.64 | 28 | 12.7 | 1000 | 304.8 |
| 3/4 | 21 | 1.05 | 26.67 | 0.107 | 2.72 | 37 | 17 | 1000 | 304.8 |
| 1 | 27 | 1.315 | 33.4 | 0.126 | 3.2 | 55 | 24.7 | 500 | 152.4 |
| 1.25 | 35 | 1.66 | 42.16 | 0.133 | 3.38 | 72 | 32.5 | 250 | 76.2 |
| 1.5 | 41 | 1.9 | 48.26 | 0.138 | 3.51 | 89 | 40.2 | 250 | 76.2 |
| 2 | 53 | 2.375 | 60.33 | 0.146 | 3.71 | 119 | 53.8 | 200 | 61 |
| 2.5 | 63 | 2.875 | 73.03 | 0.193 | 4.9 | 188 | 85 | 100 | 30.5 |
| 3 | 78 | 3.5 | 88.9 | 0.205 | 5.21 | 246 | 111.7 | 100 | 30.5 |
| 3.5 | 91 | 4 | 101.6 | 0.215 | 5.46 | 296 | 134.1 | 100 | 30.5 |
| 4 | 103 | 4.5 | 114.3 | 0.225 | 5.72 | 350 | 158.9 | 100 | 30.5 |
| 5 | 129 | 5.563 | 141.3 | 0.245 | 6.22 | 479 | 217.2 | 60 | 18.3 |
| 6 | 155 | 6.625 | 168.28 | 0.266 | 6.76 | 635 | 287.8 | 60 | 18.3 |
| NOTE: 1Tolerances: Size 1/2 (16) to 1 1/2 (41) +/- 0.015 (0.38mm); 2 (53) to 6 (155) +/- 1% 2For information only. Not a requirement of the CSA Standard. Each length of conduit with coupling attached will be nominally 10 (3.05m) |
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Cutting: A hacksaw is recommended to cut trade sizes 1-1/4 and smaller. Larger trade sizes can be cut with power cut-off equipment.
Bending: Standard EMT benders, one size larger than the size of the conduit, should be used on conduit trade sizes 1 and smaller. For sizes over trade size 1, conventional equipment is recommended.
Threading: Sharp dies and conventional cutting oil should be used for aluminum conduit. A general purpose emulsifiable oil can provide excellent results.
Fittings: Aluminum fittings are recommended; however, cadmium plated or galvanized fittings are satisfactory for most installations.
Fishing and Wire Pulling
Small Conduit: In trade sizes up to 1-1/2 and on shorter runs (up to 100 feet), polyethylene fish tapes can be used effectively. Also recommended are round, flexible, speedometer-type steel cables. Use of flat steel tapes should be avoided since they tend to jam in the bends, or if not used carefully, scrape and cut conduit walls.
Large Conduit: For pulling large conductors through larger conduit or longer runs, polypropylene rope is recommended. Steel pulling cables, especially when old or frayed, can damage steel or aluminum conduit.
In Soil or Concrete: The Canadian Electrical Code states that aluminum conduit and tubing shall not be embedded in concrete containing reinforcing steel unless the concrete contains no chloride additives or the conduit/tubing has been treated with supplementary corrosion protection.