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.
Round or Square Steel Tube & Pipe
Selection of hollow metal tubing and pipe — including round, square, and rectangular tube, as well as seamless or welded pipe — all stocked and ready to ship or cut to your specifications. Whether you need structural tubing for framing, hollow sections for fabrication projects, or pipe for fluid, gas, or mechanical applications. You can order custom-cut pieces with no minimum order requirement and either pick up locally or have on-site delivery from Janesville, WI.With this flexibility, ideal for contractors, fabricators, and shops— whether the job calls for precision tubing, heavy-duty structural pipe, or something in between.
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.
Hollow rectangular steel tubing in carbon steel, aluminum, or stainless — specifying both wall thickness (from 18 gauge up to 5/8") and outside dimensions (width and height from ½″ up to 12″) to match your project requirements. This makes it ideal for structural framing, fabrication, supports, enclosures or custom projects where strength combined with lightweight, hollow construction is needed. Whether you're building frames, racks, or equipment enclosures, you can order exactly the size and quantity you need. Conveniently based in Janesville, WI, enables custom sizing and local pickup/delivery — offering flexibility for contractors, fabricators, hobbyists and small shops alike.
Industrial steel pipe, offering both seamless and welded options to meet various fluid and gas transport or structural applications. We stock pipe in multiple wall thicknesses and pressure ratings, including SCH40, SCH80, and SCH160, with nominal sizes ranging from 1/2" to 12". Whether you require A53 or A500 grades, our 21-foot lengths and in-house pipe threading capabilities ensure you receive the precise, high-quality material required for your most demanding projects.
Hollow cylindrical tubing in carbon steel, available in both DOM and ERW variants, with outer diameters from 1/8″ up to 12″ and standard 20-ft lengths — and cut-to-size upon request. Whether you're building frames, structural supports, railing, machinery components, or fabricating custom parts, these round tubes provide strong, reliable tube stock suited for wide-ranging industrial, or fabrications. Flexible ordering and local availability from Janesville, WI facility, you get both convenience and versatility — from small-scale jobs to larger structural builds.
FAQs
What is the difference between steel tube and steel pipe?
Steel tube is typically specified by its outside dimensions and wall thickness and is commonly used for structural, fabrication, and mechanical applications. Pipe is generally specified by nominal pipe size and schedule and is commonly used to carry liquids or gases, as well as for some structural applications. The right choice depends on how the material will be used.
What types of steel tubing does AISS carry?
AISS carries round, square, and rectangular tubing for fabrication, framing, supports, racks, trailers, machinery, and other applications. Depending on the product, options include carbon steel, aluminum, and stainless steel.
What is the difference between DOM and ERW steel tubing?
ERW, or electric resistance welded tubing, is made by forming steel and welding the seam. It is a cost-effective option for many structural and fabrication projects. DOM, or drawn over mandrel tubing, is processed further to provide tighter dimensional tolerances and a more consistent surface, making it a good choice for precision mechanical and fabrication applications.
What is the difference between seamless and welded steel pipe?
Welded pipe is manufactured by forming steel and welding the seam, while seamless pipe is produced without a welded seam. Both can work well depending on the application, pressure requirements, specifications, and budget. AISS carries both seamless and welded pipe options.
What pipe sizes and schedules does AISS carry?
AISS stocks steel pipe in nominal sizes ranging from 1/2 inch to 12 inches, including Schedule 40, Schedule 80, and Schedule 160 options. Pipe is available in multiple grades and wall thicknesses, with standard lengths up to 21 feet. Contact AISS to confirm the size, schedule, and grade currently available.
Can AISS cut steel tube and pipe to length?
Yes. AISS offers in-house saw cutting and cut-to-length services for tubing and pipe. Custom cutting can reduce material waste and prep time, allowing your team to receive material closer to the dimensions needed for fabrication or installation.
Does AISS offer pipe threading?
Yes. AISS provides in-house pipe threading for carbon and stainless steel pipe up to 4 inches in diameter. This allows customers to order pipe that is cut and threaded before pickup or delivery, reducing additional work at the shop or jobsite.
Can I buy a small quantity of steel tube or pipe?
Yes. AISS has no minimum order requirement. Customers can purchase a single piece, custom-cut material, or larger quantities depending on the project. This makes AISS an option for everyone from individual fabricators and repair shops to contractors and manufacturers.
Contact American Industrial Steel & Supply in Janesville, Wisconsin!
For a quote on our steel products, please fill out the contact form here or reach out to us by phone or email below!
