Sell 500 kcmil Wire in Houston

01Identify 500 kcmil Wire From Tags and Jacket Print

Start with the reel tag and the printing on the insulation or cable jacket. Look for the conductor size, copper or aluminum designation, insulation type, manufacturer and date code. Photograph the full tag and a readable section of jacket print so we can compare the identification with the material shown.

500 MCM is an older designation for 500 kcmil; both describe the same conductor area. This size uses circular-mil notation rather than an aught designation. A listing that says only “large feeder wire” does not give us enough information to evaluate it accurately.

For the supplied Class B construction, the conductor has 37 strands and an approximate diameter of 0.813 inch. Approximate THHN outside diameter is 0.949 inch, but insulation and cable construction affect finished diameter. Use dimensions as a cross-check, not as the sole identification method. If markings are missing, send clear photos of the conductor end and any remaining labels. Keep differently marked reels separate.

02What the 500 kcmil Specifications Mean

The 500 kcmil designation describes conductor area, equivalent to 253 mm². It does not identify the insulation, voltage rating or complete cable construction. Those details matter when deciding whether material can be reused and which buyers may need it.

Under NEC 310.16 at 30°C ambient, before required adjustments, copper ampacities are 320 amps in the 60°C column, 380 amps in the 75°C column and 430 amps in the 90°C column. Aluminum values are 260, 310 and 350 amps in those respective columns. These are reference values, not approval for a particular installation.

Terminal temperature ratings, installation conditions and applicable adjustment or correction factors can limit usable ampacity. A 90°C insulation marking does not automatically allow a circuit to use the 90°C ampacity. See our wire ampacity reference for context, and have a licensed electrician or engineer determine suitability. For selling purposes, send the actual markings rather than relying on the size alone.

03Common Uses in Houston Construction and Plants

Surplus 500 kcmil cable can come from large electrical services, plant feeder work and utility-related projects across Greater Houston. Common applications include parallel sets for 800- to 4,000-amp switchgear services, copper feeders evaluated at the 380-amp reference value, medium-voltage feeders and utility tie-ins. Bare 500 kcmil copper also appears in ground-grid work.

These applications do not make different cable constructions interchangeable. Building wire, medium-voltage cable and bare grounding conductors require separate evaluation. We need the actual type and condition to assess the material, even when each item carries the same conductor-size designation.

For leftover parallel sets, label each cut length separately and note whether lengths are documented or estimated. Matching, usable lengths can be easier to evaluate than a mixed pile with unknown footage. On Houston construction and plant sites, keep project records or reel labels with the surplus when available. They help explain what was purchased and what remains after the job.

04500 kcmil Wire and Cable Types We Buy

We review copper and aluminum surplus in this size, including building wire, industrial cable, utility cable and bare copper. Identification matters because insulation, assembly construction and current demand affect the offer—not just the amount of conductor metal.

Common types we buy include:

• THHN/THWN-2 building wire and XHHW-2 wire.
• USE-2/RHW-2 wire and URD cable.
• MC cable, plus MC-HL and Teck cable.
• Medium-voltage cable, tray cable and VFD cable.
• Bare copper and PV wire.

For cable assemblies, show the complete jacket designation rather than describing the assembly only as “500 copper.” Include any available information about conductor metal, construction and footage. Photographs should show both the identification and overall condition, including exposed ends or visible damage.

We focus on reusable material. Short pieces, burned insulation, heavily damaged cable or unusable cuts may be better suited to scrap. We will tell you what appears reusable rather than treating every item as resale stock.

05How Footage, Weight and Packaging Affect Value

500 kcmil copper wire value depends on more than gross reel weight. We consider conductor metal markets, cable type and demand, size, footage, manufacturer, date code, packaging condition, quantity and pickup logistics. Reusable wire is usually worth more than its scrap or melt value.

Weight can help estimate footage when the construction is known. Finished copper THHN/THWN-2 weighs approximately 1683 pounds per 1,000 feet. Dividing a net wire weight of 1683 pounds by that reference weight gives an estimated 1,000 feet. This example excludes the reel, pallet and other packaging; gross shipping weight cannot be used directly.

Bare stranded copper weighs approximately 1545 pounds per 1,000 feet, while bare aluminum weighs approximately 470 pounds per 1,000 feet. Do not apply those bare-conductor figures to insulated cable assemblies.

Common put-ups include 1,000-foot reels, 2,500-foot master reels and cut lengths for parallel sets. Sound reels, readable labels and documented footage make evaluation clearer. Tell us whether a reel is full, partially used or carrying an estimated balance.

06How to Sell 500 kcmil Wire in Houston

Send photos of reel tags or jacket print, footage or weight, and the material's location to Houston Wire Buyers. Call or text 951-403-5738, or email industrial832@gmail.com. You can also request a written offer with those details.

We review the information, provide a written offer, then schedule pickup or drop-off. At the appointment, we verify the material on site and make payment per the written offer. Note any damaged reels, inaccessible storage areas or uncertain footage before scheduling.

Large reels require handling plans. Tell us about loading access, available handling equipment and the condition of reel flanges. Do not assume a heavy reel can be moved safely by hand; discuss site conditions before attempting to move it.

We serve Greater Houston only: Harris, Fort Bend, Montgomery, Brazoria, Galveston, Chambers and Waller counties. Drop-off is by appointment at 6402 McGrew St, Houston, TX 77087, in the southeast Houston Mayfair area near I-45 and I-610. Call first before bringing material.