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Need a specific size?

  • We can cut to meet your projections specifications.
  • On-site delivery is available.

Call us today at 608-754-1000 for available stock or visit us in Janesville.

Products

American Industrial Steel & Supply (AISS) provides structural steel products to various municipalities, industrial markets, construction crews, farms, and individuals.

Our wide range of products include, but are not limited to: Carbon, Stainless, Aluminum, Galvanized, and Red Metals.

  • Abrasion Resistant Steel
  • Angle
  • Bar Grating
  • Beams
  • Bollards & Covers
  • Channel
  • Diamond Floor Plate
  • Expanded Metals
  • Flat & Round Bars
  • Grip Strut
  • Pipe
  • Plate Steel
  • Rebar
  • Sheets Steel/Aluminum/Stainless/Galvanized
  • Tubing  (DOM/ERW/Round/Square)
  • Threaded Rod
  • Unistrut
  • Wire Mesh
  • We also do special orders!
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Square Steel Tube

Square-Tube
Hollow square tubing in materials like carbon steel, aluminum, or stainless — available in a range of wall thicknesses and square cross-section sizes so you can get exactly the dimensions your project requires. Square tubing is a versatile structural element, ideal for fabrication, framing, support structures, enclosures, racks, furniture, trailers, and general metal-working projects where strength and rigidity are needed while minimizing weight. Cut-to-size service with no minimum order lets contractors, fabricators, hobbyists, and small shops order just what they need — with local pickup or delivery from their Janesville, WI facility.

Stainless Steel Sheet Metal

Sheet-stainless
Cut-to-size stainless steel sheets in gauges ranging from 28 GA up to 11 GA, with widths from 48″ to 72″ and lengths from 96″ to 240″. You can choose common stainless alloys like 304 or 316L to suit your project’s needs — whether you're looking for corrosion resistance, durability, or clean aesthetic finish.These stainless sheets are ideal for a wide range of applications, including fabrication, enclosures, structural components, food-grade equipment, or exterior installations. Flexible sizing and local distribution from Janesville, WI, making it easy for contractors, fabricators, or hobbyists to get the stainless steel sheet metal they need without excess waste or minimum-order constraints.

Aluminum Plate

Plate-aluminum
Leading provider of high-quality aluminum plate, known for its superior strength-to-weight ratio and excellent corrosion resistance. Stock of versatile grades like 6061, 3003, and 5052 in a wide range of sizes, including thicknesses from 3/16" up to 2" and widths up to 72". Aluminum plate can be precision-cut to your project's exact length specifications and conveniently delivered to your job site.

EMT Conduit

EMT-Conduit

Expanded Metal

Expanded-Metal

Industrial Carbon Plates

Plate
High-quality carbon steel plates, offering heavy-duty material for structural, machinery, and industrial fabrication applications. Stocking a comprehensive range of plates with thicknesses from 3/16" up to 2" and widths up to 72", in lengths up to 240". Our inventory includes standard structural grades like A53 and specialized materials like AR400-500 abrasion-resistant plate. Custom cut plate to your required size and deliver it directly to your job site.