Wholesale Tubing Supplier in Philadelphia, PA

Setting You Up For SuccessTube Supplying Services in Philadelphia, PA

At McKnight Steel & Tube Co., we distribute a wide selection of tubing in the metals, shapes, grades, and specifications you require. Our dedicated sales team has years of experience buying and selling tubular products. We’re confident that we can quote you a competitive price on the quality tubing you require. With our vast assortment of products and extensive industry contacts, we’re confident that we have or can get what you need.

Whether for commercial or large-scale industrial projects, we stock:

  • Metals: In a wide variety of alloys such as carbon, stainless, aluminum, and nickel
  • Shapes: round, square, rectangular
  • Manufacturers: Our products are purchased from domestic or foreign quality certified manufacturers
  • Government Standards: We carry DFAR (Defense Federal Acquisition Regulation) compliant material
  • Specialty Tubing: Chromoly Tubing, Sanitary Tubing, Honed ID Tubing, Driveline Tubing, Carbon and Stainless Hydraulic Fluid Line and Boiler Tubing, Ornamental and other Finishes

Product Insights

Size & Shape

Tube dimensions include the outside diameter, inside diameter, wall thickness, and length. Nominal sizes for metal tubes are typically based on the outside diameter. Standards organizations such as ASTM and ASME specify tolerances and other requirements in conjunction with material dimensions, outlining the permissible measurement variation allowed to meet specific standards. Tubing shapes include circular, oval, rectangular, and square, with custom shapes also available.


  • Bright Finish – The tube undergoes secondary finishing processes such as polishing or pickling, resulting in a bright surface.
  • Galvanized – A zinc coating is added to the tube to enhance corrosion resistance.
  • Painted – The tube is either painted or powder-coated to resist corrosion or for identification purposes.

Specialty Tubing

  • Chromoly Tubing – Known for its strength and durability, chromoly tubing is used in applications where strength-to-weight ratio is important, such as in the motorsports and aerospace industries.
  • Sanitary Tubing – Designed for applications requiring high cleanliness and corrosion resistance, sanitary tubing is ideal for industries like pharmaceuticals, food processing, and biotechnology.
  • Honed ID Tubing – Honed ID tubing has a smooth interior surface and precise inside diameter dimensions. It is used in hydraulic and pneumatic cylinder applications where precise tolerances and a polished finish are required.
  • Driveline Tubing – With a tighter straightness tolerance and engineered for automotive and heavy-duty equipment, driveline tubing provides robust support in the transmission of power between components for efficiency and reliability.
  • Carbon and Stainless Hydraulic Fluid Line – Hydraulic fluid line tubing, available in carbon and stainless steel, is designed to withstand high-pressure applications, making it a staple in hydraulic systems across various industries.
  • Boiler Tubing – Boiler tubing is engineered to withstand high temperatures and pressures, making it a crucial component in boilers and heat exchangers, ensuring efficient heat transfer in industrial processes.

Our Standards

Our tubular products are supplied by domestic and foreign quality certified tubing manufacturers to ASTM standards and with accompanying material test reports. We carry Defense Federal Acquisition Regulation (DFAR) compliant materials to adhere to government standards.

Choose McKnight Steel & Tube Co.

If you are looking for metal tubing sales, give us a try. We are a family-owned business dedicated to providing high-quality metals for decades. Contact us and we would be happy to quote your tubing product needs. We look forward to hearing from you.

Our sales team is here to respond to your questions. No product is too specialized. Our sales staff is always up for a challenge, so please reach out to us today!

Metals Service Center Institute Logo

The Metal Experience

  • In Business Since 1954
  • Family Owned and Operated
  • Material Test Reports Available
  • Domestic and DFAR Compliant Material Available
  • Company Trucks Deliver within a 120 mile radius of our Philadelphia location
  • Delivery by Common Carrier Across the United States
  • Close Working Relationships with an Assortment of Industry Professionals

How can we help you?