ASTM A554 Tubes
ASTM A554 Tubes
ASTM A554 stainless steel tubes are welded mechanical tubes made to American ASTM standards. They are designed for structural and decorative use. We offer a full range of tube shapes, including round tubes, square tubes, rectangular tubes, and shaped tubes such as oval tubes and slot tubes. These products are suitable for many different engineering and design projects.
A554 stainless steel tubes are known for their precise dimensions, excellent surface quality, and strong corrosion resistance. They are widely used in building railings and handrails, indoor and outdoor decorative structures, furniture and display racks, industrial equipment frames, and automotive parts. They are a great choice when both strength and appearance matter.
Applications
Stainless Steel Tube for Balcony Railings
Stainless Steel Tube for Staircase Handrails
Stainless Steel Round Tube for Indoor Glass Railings
Stainless Steel Tubes for Fence and Barrier Systems
Stainless Steel Rectangular Tube for Shelf
Stainless Steel Square Tube for Modern Furniture Frames
Stainless Steel Round Tube for Towel Bars
Stainless Steel Welded Tubes for Automotive Exhaust Systems
SS Tube for Fabrication and Welding Workshops
Materials and Grades
We offer a wide range of stainless steel grades, covering both austenitic and ferritic types. These grades are suitable for different environments and applications.
| Grade | Type | Main Elements | Key Features |
|---|---|---|---|
| 201 | Austenitic | 17% Cr, 5% Ni, High Mn | Uses manganese instead of nickel. Lower cost with moderate corrosion resistance. |
| 304 | Austenitic | 18% Cr, 8% Ni | Good corrosion resistance. Easy to process. Best value for most applications. |
| 304L | Austenitic | Low-carbon 304 | Better weldability. Stable corrosion resistance after welding. |
| 316 | Austenitic | 18% Cr, 10% Ni, 2% Mo | Strong resistance to chloride corrosion. Performs well in harsh environments. |
| 316L | Austenitic | Low-carbon 316 | Excellent corrosion resistance after welding. Very stable performance. |
| 430 | Ferritic | 17% Cr, Nickel-free | Magnetic. Lower cost with moderate corrosion resistance. |
Surface Finish
We offer a range of surface finish options to meet the needs of architectural decoration, furniture manufacturing, and industrial applications.
| Surface Finish | Standard Grit | Features |
|---|---|---|
| Satin Finish | 240# / 320# | Fine, uniform directional grain. Low reflectivity with a soft and clean appearance. |
| Polished Finish | 400# / 500# / 600# / 8K | Smooth surface with increasing reflectivity as the grit number increases. 8K provides a clear mirror-like appearance. |
| Hairline Finish | HL | Long, continuous and even grain lines. Natural texture with good scratch resistance. |
| Custom Finish | Anti-fingerprint / Embossed / Colored | Custom treatments are available based on standard finishes. Suitable for special design and branding needs. |
Quality Advantages
② Reliable Weld Quality
Smooth, uniform welds without cracks, pinholes, or structural defects.
① Excellent Corrosion Resistance
Resists rust and corrosion in humid, chemical, and outdoor environments.
③ High-Quality Surface Finish
Various surface finishes to meet strict appearance and performance needs.
Stainless Steel Round Tube
The round tube is the most common shape in the A554 range. It has an even load distribution and a high-quality surface finish. It is widely used in building railings, handrails, furniture frames, and industrial structures. The round shape provides good structural strength. It also gives products a clean and smooth look. This makes it a popular choice when both function and appearance are important.
Our stainless steel round tubes are available in outer diameters from 9.5 mm to 215 mm. Wall thickness ranges from 0.8 mm to 5.0 mm. They are available in grades such as 304 and 316, and can be supplied in various surface finishes including satin, hairline, and mirror. Custom cut lengths and non-standard sizes are also available.
Stainless Steel Square Tube
Stainless steel square tubes have a symmetrical cross-section and clean, straight lines. They are widely used in furniture frames, storage racks, building structures, and industrial equipment supports.
Our stainless steel square tubes are available in sizes from 10×10 mm to 200×200 mm. Wall thickness ranges from 0.8 mm to 8.0 mm. They are available in multiple grades and surface finishes. Custom cut lengths and non-standard sizes are also available.
Stainless Steel Rectangular Tube
Stainless steel rectangular tubes have a flexible width-to-height ratio. This allows them to provide different levels of strength in different directions. They are a great fit for frame structures and building fences.
Our stainless steel rectangular tubes are available in sizes from 10×20 mm to 100×200 mm. Wall thickness ranges from 0.8 mm to 6.0 mm. They are available in grades including 304 and 316L. Surface finishes can be selected based on your needs. We can handle both standard bulk orders and custom size requests.
Stainless Steel Shaped Tubes
Stainless steel shaped tubes are non-standard tubes made for special design and engineering needs. Shaped tubes offer more flexibility in terms of form and fit. They are suitable for custom architectural, furniture, and industrial projects.
We currently offer two main types of shaped tubes. Oval tubes have a smooth, elegant cross-section. They are commonly used in handrails, furniture legs, and decorative structural parts. They offer a refined look and a comfortable feel. Slot tubes have an open slot cross-section. They are lightweight and easy to install into other components. They are widely used in guide rails, frames, and assemblies that need to connect with other parts.
Stainless Steel Tube Fittings
In addition to stainless steel tubes, we also supply a full range of matching fittings. We offer a variety of fitting types, including elbows, couplings, tees, flanges, and railing support brackets, etc.
All fittings are made from the same grade of stainless steel as the tubes. This ensures consistency in material, appearance, and corrosion resistance across the whole project. Contact us for detailed product specifications or to discuss the right fittings for your project.
