Stainless Steel Tubing Supplier
Your Supplier for Stainless Steel Tubes in Titanium, Alloy, Stainless, Nickel, and Nitronic
When your project calls for reliable structural performance and corrosion resistance, Stainless Shapes, Inc. is the supplier you can count on. We stock a wide range of stainless steel tubes, including round, rectangular, and square stainless tube profiles, across titanium, alloy, stainless, nickel, and Nitronic materials in the grades and finishes your application demands. If we don’t have it on hand, our team will source it fast. Call us at (800) 748-9811 or contact our team online to request a quote.
What We Supply
We carry stainless steel tubes in all the standard geometries, including cylindrical, square stainless tube, rectangular, oval, hexagonal, triangular, and spiral profiles. Our inventory covers the most commonly requested grades, including:
- Grade 304: Excellent heat and corrosion resistance with strong weldability, suitable for a broad range of general-purpose applications.
- Grade 316: Added molybdenum and chromium for superior corrosion resistance, especially in high-temp or marine environments.
We also supply duplex and specialty alloys in titanium, nickel, and Nitronic when your project demands enhanced mechanical properties or corrosion protection. Whatever the spec calls for, we can get it to your shop.
Finishes Available
We offer a full range of finish options to match both the function and the look your project requires:
- Mill Finish: Standard surface straight off the hot roll line, no additional processing.
- 180 Grit: An architectural finish with uniform, directional grit lines.
- 240 Grit (Dairy/Sanitary): Ridges buffed smooth so bacteria can’t collect in surface crevices, industry standard for food service and pharmaceutical applications.
- 320 Grit: A bright, low-haze finish with a flawless buff, great for visible installations.
- 400 Grit: The highest mechanical grit before hand finishing begins, producing a near-mirror surface.
- Polished Stainless Tube: A very bright, zero-haze shine ideal for architectural and decorative applications.
- Buffed: Maximum brightness with partial mirror reflection.
- Mirror Buffed: Full mirror-quality reflection through the steel surface.
Whether you need a polished stainless tube for an architectural feature, precision stainless tubing for a tight-tolerance build, or a mill-finish square stainless tube for structural framing, we match the finish to the function.
Industries We Serve
Our stainless steel tubes support applications across automotive, aerospace, construction, food handling, medical equipment, furniture, appliance manufacturing, water transport, and structural fabrication. From precision stainless tubing for medical devices to stainless structural tube for construction projects, our team will match the right material, grade, and finish to your application.
Why Choose Stainless Shapes as Your Tube Supplier?
With over 25 years in the business, we’ve built our reputation on getting customers exactly what they need, when they need it. When you work with us, here’s what you get:
- Broad material availability across titanium, alloy, stainless, nickel, and Nitronic tubing
- Full product range including polished stainless tube, precision stainless tubing, and square stainless tube options in all standard geometries
- Competitive pricing backed by strong mill relationships
- Mill certifications and full traceability documentation included with every shipment
- Fast nationwide shipping from sales offices in Illinois and Florida
- A knowledgeable sales team that specializes in sourcing custom and hard-to-find items and sees your order through from quote to delivery
We’re ISO 9001:2015 certified, and our industry affiliations include ASME, AWS, the Association of Steel Distributors, and the FMA Tube & Pipe Association.
Get a Quote Today
Ready to order or need help selecting the right stainless steel tubes for your project? Contact our team at (800) 748-9811 or reach out online. We typically respond within 24 hours. Let us show you why customers keep coming back to Stainless Shapes.
Contact us now!
Whether you need a few feet or full truckloads, StainlessShapes.net delivers quality 304 stainless I beams. Standard and custom sizes available with fast shipping across the U.S. and expert service and quotes in under 24 hours.
Furthermore, for a prompt and accurate quote, call us today.
Frequently Asked Questions
Seamless stainless steel tubes are used in high-pressure hydraulic and instrumentation lines, heat exchangers, boiler tubes, chemical processing, and aerospace applications where no weld seam can be permitted for maximum pressure integrity.
Seamless tube is superior for high-pressure and critical fluid service because there is no weld seam as a potential failure point. Welded tube is adequate for structural and moderate-pressure applications at lower cost. For instrumentation and hydraulic lines, seamless is almost universally specified.
Stainless steel tubing is sized by exact outside diameter (OD) and wall thickness with tight tolerances. Pipe is sized by nominal pipe size (NPS) and schedule. Tubing is preferred for instrumentation and precision fluid handling; pipe is used for larger-diameter process piping systems.
Stainless Shapes distributes stainless steel tubing in Grade 304, 304L, 316, and 316L. For elevated-temperature service above 800°F, Grade 321 (titanium-stabilized) or Grade 347 (niobium-stabilized) prevent weld sensitization.
Welded stainless tube is formed from strip and seam-welded longitudinally -- lower cost and adequate for structural and moderate-pressure uses. Seamless tube is extruded from billet with no weld seam -- higher cost, uniform grain structure, and better pressure ratings. The choice depends on pressure requirements and service criticality.
Sanitary stainless steel tubing meets ASME BPE or 3-A Dairy standards with polished internal surfaces (typically Ra 32 uin or better) to prevent bacterial harboring. It is used in food and beverage processing, dairy, brewing, pharmaceutical manufacturing, and cosmetics wherever hygienic product-contact surfaces are required.
Yes, stainless steel tubing can be bent using a mandrel tube bender to prevent wall collapse. Annealed 304 and 316 tubing bend well with minimum bend radii of approximately 2x the OD for thin-wall material.
Stainless steel tubing is available in wall thicknesses from 0.028" (light gauge instrumentation) through heavy-wall sizes for high-pressure applications. Common instrumentation gauges include 22, 20, 18, 16, and 14 BWG. Contact Stainless Shapes at 800-748-9811 for current stock.
Stainless steel tubing is used in chemical and petrochemical processing, food and dairy, pharmaceutical manufacturing, aerospace, semiconductor fabrication, marine and offshore platforms, heat exchangers, and medical device manufacturing.
Structural stainless tubing meets dimensional tolerances for mechanical and construction applications. Sanitary tubing has a polished interior finish (Ra 32 uin or better) suited for food, beverage, and pharmaceutical use where bacterial harboring must be prevented. Both types are available from Stainless Shapes in 304 and 316 grades with certified mill test reports.