Stainless Steel Round Tube
Key Types of Stainless Steel Round Tube
- Welded Tubing:
Made by rolling a flat strip of stainless steel into a cylindrical shape and welding the seam.It is cost-effective,offers excellent surface finish,and is ideal for structural or ornamental applications. - Seamless Tubing:
Produced by piercing a solid steel billet,resulting in a tube with no welded seams.It can withstand much higher pressures and extreme temperatures,making it the choice for demanding industrial environments.
Key Advantages
Unlike carbon steel tube,stainless steel tube contains chromium,which forms an invisible,self-healing protective layer of chromium oxide on the surface.This prevents rust and oxidation,allowing the round tubes to withstand harsh environments,humidity,chemicals,and saltwater without degrading.
Stainless steel round tubes offer a remarkable strength-to-weight ratio.They maintain high tensile strength even under extreme temperatures (both cryogenic and red-hot conditions) and resist mechanical damage,ensuring long-term structural integrity and a lifespan that can span decades.
- Uniform Pressure Resistance:
It distributes internal fluid pressure and external loads equally in all directions,reducing the risk of bursting or buckling. - Excellent Torsional Strength:
Round tubes resist twisting and bending forces much better than square or rectangular profiles,making them highly reliable under structural stress.
The smooth,non-porous surface of stainless steel round tubes prevents the accumulation of dirt,debris,and bacteria.It is highly resistant to aggressive chemical cleaners and sanitizers,making it exceptionally easy to clean.This is why it is the gold standard for medical,food,and pharmaceutical applications.
With finishes ranging from a sleek matte to a mirror-like polish,stainless steel round tubes offer a modern,premium look that enhances architectural and consumer product designs.Additionally,stainless steel is 100% recyclable without any loss in quality,making it an eco-friendly and sustainable material choice.
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Materials of Stainless Steel Tube
| Material | Grade |
|---|---|
| Stainless Steel | TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 347, 347H, 321, 321H, 904L, S31254 (mat.1.4301, 1.4307, 1.4948, 1.4401, 1.4404, 1.4571, 1.4438, 1.4833, 1.4841, 1.4845, 1.4845, 1.4450, 1.4541,1.4878, 1.4539 , 1.4547/254 SMO) etc. |
| Duplex & Super Duplex Steel | UNS S31803 , S32205, S32750，S32760,S32304 (Mat.1.4462,1.4410,1.4501,1.4362)etc. |
| Nickel Alloy | Monel 400, Inconel 600, Inconel 625, Incoloy 800, Incoloy 800H, Incoloy 825, Hastelloy B2, Hastelloy C-22, Hastelloy C-276, 15-5PH, 17-7PH, Cu/Ni 70/30(C71500/B30), Cu/Ni 90/10(C70600/B10) etc. |
(*If your required is not found here, please make a special inquiry immediately.)
Stainless Steel Tube Dimensions
| Materials | Dimension/OD | Dimension/Wall thickness |
| Stainless Steel TP304L, 316L, 310S, 317L, 321, 347H etc. | 6mm ~ 204mm | 0.4mm ~ 16mm |
| Super Stainless Steel 904L, 254 SMO | 6mm ~ 204mm | 1.2mm ~ 16mm |
| Duplex 2205, 2507 | 6mm ~ 204mm | 1.2mm ~ 16mm |
| Nickel-based Alloy | 6mm ~ 204mm | 1.2mm ~ 16mm |
Notes:
*The stainless steel tubing dimension is for seamless tubing only, please click here if you have any requirement for stainless steel welded tubings.
**The dimension is for currently equipment. We may update the equipment and extend the supplying range without notice. Please contact us if you couldn’t find your specification here.
International Standards
- ASTM A554
- ASTM A269
- ASTM A270
- ASTM A213
- ASTM A249
- EN 10296-2
- EN 10217-7
- EN 10216-5
- EN 10357
- JIS G3459
- JIS G3463
- JIS G3448
- JIS G3446
- GB/T 14976
- GB/T 12771
- GB/T 3639
Our Manufacturing Abilities of Stainless Steel Tube
Advanced Welding & Seamless Extrusion
- Welded Tubes:
We utilize state-of-the-art laser and TIG welding technologies.Our online precision control system ensures that the weld strength matches that of the base material 100%. - Seamless Tubes:
Equipped with high-tonnage hot extrusion presses and cold drawing/cold rolling equipment,we are capable of manufacturing seamless,monolithic round tubes.
Premium Surface Finishing
- Mechanical Polishing:
We consistently provide 180-grit,320-grit,and 400-grit satin/brushed finishes,as well as 600-grit to 800-grit mirror finishes. - Electrochemical Polishing (EP):
We provide electrolytic polishing services specifically for tubes used in ultra-high-purity industries,thoroughly eliminating microscopic imperfections on the inner tube walls to prevent bacterial growth.
Precision Deep Processing & Bending
- Multi-axis CNC Pipe Bending:
Enables complex 3D multi-angle bending while maintaining uniform wall thickness and preventing collapse. - Precision Intersecting Line Cutting:
Utilizing fully automatic fiber laser pipe cutting machines,we achieve high-precision cutting of bevels,holes,slots,and fish-mouth joints,ensuring that components can be assembled and welded seamlessly upon delivery.
Strict QA & Diverse Material Grades
- Comprehensive Testing Assurance:
Equipped with ET, UT, hydrostatic testing,and spectrometer-based material composition analysis,we ensure that every round tube leaving our factory meets international standards 100%. - Full Range of Materials:
In addition to standard 304/L and 316/L grades,we have extensive manufacturing experience in processing duplex 2205/2507, superalloys,and high-strength wear-resistant tubes.
Applications
- Architectural Handrails and Balustrades
- Food, Beverage, and Dairy Processing
- Medical Equipment and Surgical Tools
- Automotive Exhaust Systems
- Marine Hardware and Rigging
- Chemical and Petrochemical Piping
- Modern Furniture and Interior Design
- Heat Exchangers and Condensers
- Aerospace and Motorsport Roll Cages
- Water Supply and Desalination Systems
FAQs About Stainless Steel Round Tube
- 304 Stainless Steel Round Tube:
Offers excellent value for money,with outstanding workability and corrosion resistance.Suitable for most indoor and standard outdoor applications. - 316 Stainless Steel Round Tube:
The addition of molybdenum to its composition provides exceptional resistance to chloride (salt) corrosion.Suitable for marine environments,coastal construction,swimming pool facilities,and chemical piping systems exposed to strong acids and alkalis.
Yes,but it can be prevented.Stainless steel is not completely “rust-proof,” but rather “rust-resistant.” If the wrong grade is chosen,dirt accumulates on the surface over time,or it comes into contact with iron filings and undergoes “electrochemical corrosion,” the surface may still turn yellow or develop rust spots.
For outdoor use,we recommend using 316-grade stainless steel and cleaning the surface regularly;performing a passivation treatment after processing can significantly enhance its rust resistance.
Light-duty/Decorative (20 to 16 Gauge / approx. 0.9mm – 1.6mm):
Suitable for furniture,interior handrails,display racks,automotive exhaust pipes, etc.;easy to bend and weld.
Heavy-duty/structural (14 gauge and above / approx. 2.0 mm and above):
Suitable for applications requiring the ability to withstand significant external forces, such as load-bearing columns in construction,large machinery frames,and high-pressure fluid conveyance systems.
Stainless steel round tubes offer superior pressure and twist resistance,ideal for fluids,while stainless steel square tubes provide better bending strength and flat surfaces,making them easier to cut,weld,and frame.
Contact Us
- RM901 No.22 Tangjiaqiao Road Wenzhou China
- +86 577 8551 1171
- [email protected]
- https://www.kaysuns.com/
