Galvanized steel EMT for wholesale electrical supply
Galvanized steel EMT provides a plain-end conduit route for electrical installations. Our ten trade sizes run from 1/2 to 4 in., supplied in straight lengths with couplings and connectors available as separate order items.
| Material | Low-carbon steel, pre-galvanized finish |
|---|---|
| Product type | Electrical metallic tubing with plain ends |
| Dimensional specification | ANSI C80.3 steel EMT size series |
| Trade sizes | 1/2, 3/4, 1, 1-1/4, 1-1/2, 2, 2-1/2, 3, 3-1/2 and 4 in. |
| Quoted lengths | 3,000 or 3,050 mm. For nominal 10 ft orders, state the required length and tolerance; 10 ft converts to 3,048 mm. |
| Connections | EMT set-screw or compression couplings and connectors |
| Purchase format | Size-by-size bulk orders; tubing and fittings priced separately |
Search a trade size or outside diameter.
| Trade size (in.) | Metric designator | OD (in.) | OD (mm) | Nominal wall (in.) | Nominal wall (mm) |
|---|---|---|---|---|---|
| 1/2 | 16 | 0.706 | 17.93 | 0.042 | 1.07 |
| 3/4 | 21 | 0.922 | 23.42 | 0.049 | 1.24 |
| 1 | 27 | 1.163 | 29.54 | 0.057 | 1.45 |
| 1-1/4 | 35 | 1.510 | 38.35 | 0.065 | 1.65 |
| 1-1/2 | 41 | 1.740 | 44.20 | 0.065 | 1.65 |
| 2 | 53 | 2.197 | 55.80 | 0.065 | 1.65 |
| 2-1/2 | 63 | 2.875 | 73.03 | 0.072 | 1.83 |
| 3 | 78 | 3.500 | 88.90 | 0.072 | 1.83 |
| 3-1/2 | 91 | 4.000 | 101.60 | 0.083 | 2.11 |
| 4 | 103 | 4.500 | 114.30 | 0.083 | 2.11 |
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Nominal dimensions for pre-galvanized steel EMT. Metric length options are 3,000 and 3,050 mm; a nominal 10 ft order has its own specified length and tolerance.
Steel EMT follows the construction and dimensional requirements of ANSI C80.3. The tube is identified by its EMT trade size and nominal wall.
The table is our dimensional EMT catalog. An order specifying UL-listed EMT is offered only with the proposed manufacturer, listing file and covered sizes identified in its submittal. That product-specific record accompanies the offer before order acceptance.
EMT couplings and connectors are selected by trade size and rated installation environment, with their applicable UL 514B product requirements.
Plain, deburred EMT ends fit the selected set-screw or compression coupling. This range is supplied without pipe threads or pressure-pipe bevels.
A set-screw coupling joins two EMT lengths without threading the tube. The fitting grips the tube with its screws; its listing and use conditions determine where it can be installed.
Compression nuts secure the connection around the tube. For wet locations, select a fitting identified for that use; a compression shape by itself is not a wet-location rating.
Connectors terminate EMT at an enclosure or junction box. The conduit side must fit EMT, while the box connection, locknut and any required seal form a separate selection.
Pre-galvanized steel provides the zinc finish in this range. Surface damage and internal obstructions matter because they affect corrosion protection and the path used to pull conductors.
Tubing, couplings and connectors are separate quote items. You can buy tube alone or add the fitting sizes and types needed for the electrical schedule.
EMT is supplied in the trade sizes on the approved branch-circuit schedule. The electrical layout and conductor-fill requirement set those sizes.
Warehouse orders are itemized by trade size, piece length and total footage, with the required couplings and connectors counted separately.
The final connection may require a transition from EMT to flexible conduit. That transition fitting is a separate part, especially where equipment movement or vibration affects the wiring route.
Environmental suitability depends on the tubing protection and the complete fitting system. The project specification and locally adopted electrical code govern the installation.
Outside diameter and ovality affect coupling entry and grip. Dimensional checks compare the finished tube with the selected trade size.
Wall readings are checked with the tube size. Bend evaluation examines flattening, seam opening and coating damage after forming.
The inspection scope includes internal obstructions and sharp edges at the cut ends. These are direct contact points for conductor insulation during pulling.
Trade size, length and batch references connect the bundle label to the packing list. Mixed orders remain separated by size so receiving teams can count each line.
EMT prices are built from the diameter, nominal wall, length and quantity of each line. We return piece and total-length quantities together so different offers can be compared on the same basis.
Thin-wall ends need protection from impact and overtight strapping. Bundles are supported along their length, separated by trade size and kept dry during handling and storage.
The export quote identifies dispatch timing and the named delivery location. Freight transit and import-clearance planning remain separate from production.
| Conduit type | Product standards | Construction | Connections | Selection basis |
|---|---|---|---|---|
| EMT | ANSI C80.3 / UL 797 | Unthreaded, thin-wall | EMT set-screw or compression fittings | Commercial wiring runs; location suitability depends on the specified system |
| IMC | ANSI C80.6 / UL 1242 | Heavier wall than EMT, threaded ends | IMC-compatible threaded or identified threadless fittings | Electrical routes requiring the specified IMC construction |
| RMC (steel) | ANSI C80.1 / UL 6 | Heavy-wall rigid conduit, threaded ends | RMC-compatible threaded or identified threadless fittings | Routes specified for heavier mechanical protection |
The same trade-size name does not make EMT, IMC and RMC interchangeable. This page covers EMT. For water or process piping, use the separate pipe specification.
For the threaded conduit option, compare our IMC steel conduit sizes and accessories.
Galvanized steel pipe specificationsYes. Each trade size has its own quantity, any batch minimum and packing entry. Several sizes can be reviewed together for the same shipment.
Fittings are separate quoted items. The number of joints depends on the layout and cut lengths, so a one-coupling-per-tube assumption can leave connectors or transition fittings missing.
Include the intended trade size and bending requirement in a sample request. We will quote sample supply and delivery separately. Your team can then evaluate the tubing with the bender and fittings intended for the job before arranging bulk supply.
Our published range here is plain-end tubing in 3,000 and 3,050 mm nominal lengths. Longer lengths or integral-coupling products need a separate supply review and are not included in this catalog range.
Use the length basis in the offer. Divide a nominal 10 ft price per length by 10 for its nominal price per foot. Actual 3,000 and 3,050 mm pieces are about 9.843 and 10.007 ft respectively. Compare the same trade size and wall, with fittings and freight on the same basis.
Send a size list or upload your electrical material schedule. We will return the tube and fitting items, minimum batches, packing and delivery basis in one quotation.