Johnson Bros. Metal Forming Co. - Berkeley, IL (Serving Wisconsin)
Manufacturer, Custom Manufacturer, Service Company
Manufacturers, stainless steel openseam, lockseam, splitseam, flanged seam, tubing. Prefinished. 2,000ft. min. Strippable PVC available. Inline: holes, cut to length, end fabricating.
www.JohnsonRollForming.com

Roco Steel & Tube Ltd. - Carol Stream, IL (Serving Wisconsin)
Distributor, Custom Manufacturer, Service Company
Distributor of precision & small diameter stainless steel tubing. Round tubing is available in electric welded, drawn over mandrel & hot & cold finished seamless types. Rectangular & square tubing in 1/2 in. to 12 in. sizes are available. Fabrication capabilities include steel & aluminum welding up to 1/2 in. thickness, flame & plasma cutting up to 12 in. thickness, shearing up to 1/2 in. thickness & 12 ft. length, bending & forming. Standard & cut-to-length sizes are also available.
www.rocosteeltube.com/products.htm#roundTub...

Wenthe-Davidson - New Berlin, WI
Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2008 and Six Sigma certified manufacturer of tubular assemblies & fabrications. Includes aircraft, aerospace, architectural, butt seam, chimney, custom, DOM, encapsulation, heavy wall, high pressure, interlocked, large diameter, lock seam, open seam, precision, punch, sleeve, small diameter, swaged, thick wall, thin wall, & welded tubing. Tubes range from 1 in. to 18 in. ID. Materials include hot rolled metals, cold rolled metals, aluminum, extruded aluminum, copper, carbon steel, & stainless steel.
www.wenthe-davidson.com/value-added-service...

TW Metals - Locations
Distributor, Service Company
ISO 9001:2008 & AS 9100:2004 certified worldwide distributor of standard & custom precision stainless steel tubing including small diameter & precision length stainless steel tubing. Available in 303, 316 & 15-5 stainless steel grades. Types of stainless steel tubing include commercial, ornamental, instrumentation, welded, seamless, hydraulic & mechanical stainless steel tubing. Stainless steel tubing is available in round, rectangular & square shapes. Stainless steel instrumentation tubing ranges in ODs from 1/4 to 1/2 & wall thicknesses from 0.035 to 0.065.
www.twmetals.com/products/tubing/4130-tubin...

Enerpipe, Inc. - New London, WI
Manufacturer
Manufacturer and fabricator of specialty pipe and process piping systems including tubing. Featuring close tolerance, sanitary, or high pressure & high temperature piping. Complete piping systems sourcing, fabrication and assembly services. Materials used include stainless steel, carbon steel, aluminum, hastelloy, ASME Certificates of Authorization for the S stamp for power boilers, the PP stamp for power piping, the U stamp for pressure vessels, and the National Board R stamp for repairs to boilers and vessels. Industries serviced include energy related markets including fossil fuel and nuclear power, oil refining & tar sands as well as petrochemical, mining, food and beverage, wastewater treatment, utility, water purification, pollution control and other heavy industries. United Association (UA) Union Label shop, signatory to the National Commercial Pipe Fabrication Shop Agreement.

U.S. Custom Manufacturing - Kimberly, WI
Custom Manufacturer
Custom manufacturer of stainless steel tubing including precision, flexible, smooth bore & thin wall stainless steel tubing. Stainless steel tubing is fabricated in round, oval, rectangular, square & custom shapes. Capabilities include pipe and tube bending, CAD designing, CNC machining, end forming, welding, cutting, notching, punching, coping, drilling, powder coating, anodizing, polishing, CMM inspection & barcode labeling.