American Stainless Tubing Industries (ASTI)

Products We Offer

ASTI manufactures precision stainless steel tubing in 304, 316, and 316L grades, engineered for superior corrosion resistance, excellent formability and strength, and available in food-grade and marine-grade options. We also offer one of the most extensive ornamental shape catalogs in the U.S., including handrail profiles and custom shapes with exceptional surface finish and weld integrity.

A Stainless Steel Tubing Supplier You Can Rely On

ASTI produces one of the most extensive catalogs of ornamental stainless steel tubing in the United States, with sizes ranging from 1/2" to 5" outer diameter and wall thicknesses from 22 gauge to 11 gauge. Our state-of-the-art tubing mills and finishing equipment allow us to offer premium finishes such as super buff and linear buff while also matching virtually any custom finish you require. Every tube is manufactured with precision to ensure consistent roundness, dimensional accuracy, and weld integrity.

Capabilities That Support Your Vision

We understand that every application comes with its own set of performance demands, visual requirements, and compliance standards. That’s why American Stainless Tubing, Inc. (ASTI) offers a versatile range of capabilities designed to give you exactly what you need, without compromise.

Custom Shapes & Profiles

From sleek hexagons and octagons to specialized profiles like triangle, diamond, trapezoid, and handrail tubing, ASTI can produce ornamental stainless-steel tubing in shapes that bring your design vision to life. These custom profiles allow for creative architectural applications, distinctive product designs, and unique branding opportunities.

Specialized Welding Techniques

We employ TIG-welding with slower weld speeds to ensure maximum surface quality and weld integrity. This process results in a smooth, consistent finish with minimal distortion, perfect for applications where appearance is as important as strength.

Material Expertise 

Our stainless steel is chosen for its superior corrosion resistance, long-term durability, and excellent formability. Through cold working, we can further increase strength while maintaining the workability required for bending, shaping, and fabrication.

Tight Quality Control

Every tube is inspected for consistent outer diameter, wall thickness, internal diameter, weld bead, and straightness. This level of precision ensures superior performance in demanding applications, including those involving intricate bends or structural stress.

Serving Diverse Industries

ASTI’s stainless steel tubing is engineered for industries that require both structural reliability and refined aesthetics. By combining premium materials with precision manufacturing, we create tubing solutions that perform in the most demanding environments.

• Marine – Built to withstand corrosive saltwater conditions, our tubing offers lasting performance for boat railings, marine structures, and other offshore applications where durability is critical.
• Automotive – Our precision-formed tubing enhances the strength, safety, and styling of automotive components, from exhaust systems to decorative trim. Every piece is engineered to meet the exacting standards of vehicle manufacturers and custom builders alike.
• Medical – For medical equipment and devices, our tubing meets strict standards for cleanliness, uniformity, and performance. We provide consistent results for components that demand precision and reliability in healthcare environments.
• Architectural – In architectural projects, appearance matters as much as function. Our decorative stainless steel tubing delivers striking visual appeal, with custom finishes and profiles that help your designs stand out while withstanding the elements.
• Industrial – From manufacturing machinery to heavy-duty frameworks, our industrial tubing provides the toughness and dimensional stability required for high-load, high-use environments. Designed for longevity, it keeps operations running smoothly with minimal maintenance.

Why Choose ASTI Under Triple-S Steel Holdings?

Becoming part of Triple-S Steel Holdings has expanded our distribution capabilities, increased production capacity, and strengthened our ability to serve customers across the country. Yet we’ve retained the specialized focus, responsive service, and quality-first mindset that have defined American Stainless Tubing Industries (ASTI) for decades.

Commitment to Speed, Quality, and Customization

From prototype orders to high-volume runs, ASTI delivers tubing solutions on time and to spec. Our advanced equipment allows for faster turnaround without sacrificing quality, while our finishing capabilities ensure your tubing arrives ready to make an impact.

Learn More About ASTI and Triple-S Steel

Ready to build with confidence? Contact Triple-S Steel® today to discuss your stainless steel needs, request a quote, or explore our full range of structural solutions.