Products Description
Product Specifications
| Standards | ASTM A554 |
| Steel Grades | 301,302,304,304L,305,309S,309S-Cb,310S,316,316L,317,321,330,347,429,430,430-Ti, etc. |
| Equivalent Standards | EN 10296-2, DIN 17455, JIS G3446,etc. |
| Outer Diameter (OD) | 10 mm – 200 mm (custom available) |
| Wall Thickness (WT) | 0.5 mm – 6 mm (custom available) |
| Length | 3/6/12 m |
| Surface Treatment | BA / AP |
| Production Process | TIG Welding, ERW Welding, Cold Drawing |
| Tube Shapes | Round, Square, Rectangular, Oval, Elliptical, Custom Profiles |
Compared to carbon steel, Stainless Steel Tube Shapes-utilizing grades such as 304, 316, and 409-offer reduced corrosion risk and superior high-temperature performance; specifically, Grade 409 tubing boasts a heat-oxidation limit approximately 200°C higher than that of aluminized carbon steel.
Manufactured via cold-forming processes, TORICH stainless steel shaped tubing is available in round, square, oval, D-shaped, and various custom cross-sections, allowing it to perfectly conform to underbody contours and fit within compact assembly spaces.
Customized Services
- TORICH supports the customization of non-standard tubing, including elliptical, flat-oval, asymmetrical rectangular, D-shaped, arc-shaped, and various irregular profiles.
- We offer a range of surface treatments, including bright annealing, mirror polishing, electropolishing, and brushed finishes.
- We provide one-stop processing services, including bending, punching, slotting, end forming (swaging/expanding/facing), welded assembly, and precision finishing (deburring).
Chemical Composition
| Element | C (%) | Mn (%) | Si (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|---|
| 304 | ≤0.08 | ≤2.00 | ≤1.00 | ≤0.045 | ≤0.030 | 18.0–20.0 | 8.0–11.0 | - |
| 316 | ≤0.08 | ≤2.00 | ≤1.00 | ≤0.045 | ≤0.030 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 |
| 409 | ≤0.08 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.030 | 10.5–11.7 | ≤0.75 | - |
| 430 | ≤0.12 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.0–18.0 | ≤0.75 | - |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
| 304 | ≥515 | ≥205 | ≥35 |
| 316 | ≥515 | ≥205 | ≥35 |
| 409 | ≥380 | ≥170 | ≥20 |
| 430 | ≥450 | ≥205 | ≥22 |
Possible Alternative Grades
- For automotive exhaust systems requiring superior corrosion and high-temperature resistance, 439 stainless steel is a suitable choice, offering enhanced resistance to condensate corrosion and high-temperature oxidation.
- For automotive structural components involving extensive welding, 304L low-carbon stainless steel is an appropriate option; it offers mechanical and anti-corrosion properties comparable to standard 304 stainless steel, with a negligible difference in cost.
- For applications demanding exceptional corrosion resistance-such as specialized vehicles operating in coastal areas or heavy-duty engineering vehicles-310S stainless steel can be selected; it delivers superior performance and withstands high temperatures of up to 1,100°C.
application areas
- Automotive exhaust systems: exhaust pipes, muffler pipes, catalytic converter housings, tailpipe assemblies, exhaust brackets
- Vehicle suspension systems: hollow stabilizer bars, anti-roll bars, suspension reinforcement tubes
- Automotive chassis and structural components: subframes, crossmembers, reinforcement tubes, impact protection structures
- Automotive seat structures: seat frames, support tubes, adjustment mechanism assemblies
Products Show
Testing Equipment
Factory Equipment
Pickling equipment
Products Package
FAQ
Q: Can Bright Annealed (BA) material be used directly for visible decorative parts?
A: BA surfaces feature a uniform silvery-white luster and are suitable for direct use on some interior trim components. However, for visible parts like exhaust tips-where aesthetic standards are exceptionally high-we recommend additional polishing or electropolishing processes to achieve a consistent mirror-like finish and enhance rust resistance.
Q: Are the weld seams of shaped tubes prone to cracking under long-term automotive vibration?
A: We utilize a process combining precision laser welding, weld seam leveling, and stress-relief annealing, ensuring the weld seam strength matches that of the base material. Professional vibration fatigue testing confirms that the tubes remain free of cracks and deformation under long-term in-vehicle vibration conditions.
Q: Can you bend shaped tubes without causing collapse or excessive wrinkling?
A: Yes. We employ mandrel and ball-mandrel bending technologies combined with lubrication systems to maintain profile tolerances after bending. Cross-sectional deformation is typically controlled to within 3%, though the specific result depends on the bending radius and shape.
Hot Tags: stainless steel tube shapes, China, suppliers, manufacturers, factory, customized, wholesale, price, OEM, mill, producer, for sale, stainless steel tube for photographic equipment, stainless steel tube for engineering projects, stainless steel tube for event management, stainless steel tube for hoisting equipment, stainless steel tube for ships, stainless steel tube for power tools
