Products Description
Our Advantages
1. Excellent Stability
- The Hexagonal tube exhibits high-strength mechanical properties and load stability, making them suitable for use in mechanical and industrial systems subjected to continuous vibration or cyclic loading.
- The tubes undergo flattening tests, bending tests, and hydrostatic pressure tests to ensure they remain free from deformation or cracking under long-term vibration conditions.
2. Weld Quality
- We utilize high-frequency resistance welding (ERW), followed by solution treatment. The welds are uniform and have strength comparable to the base material. The welds are precisely finished and leveled to ensure smooth inner and outer surfaces without protrusions.
- The tubes undergo non-destructive ultrasonic testing of the welds to ensure the absence of cracks, lack of fusion, or internal defects, guaranteeing structural reliability.
3. Machinability
- The Hexagonal tube offers excellent machinability and secondary processing capabilities, supporting cutting, drilling, milling, and tapping.
- The tubes undergo pickling and passivation treatment, resulting in high cleanliness and facilitating subsequent polishing, drawing, and mirror finishing.
4. Customization Services
- We offer customized services for dimensions, materials, surface treatment, and deep processing. We can manufacture tubes according to customer requirements and drawings.
- We support customized packaging and logo services, including customized packaging labels and shipping marks, suitable for sea and air transport, preventing damage to the tubes.
application areas
- Mechanical transmission systems: drive shaft bushings, couplings, gearbox components
- Industrial machinery parts: shafts, gaskets, bushings, and structural components for general machinery, automation equipment, and tool systems.
- Automotive and motorcycle parts: brackets, support parts, and structural connectors
- Construction and hardware systems: anchors, fastening systems, and structural connectors for buildings, bridges, and infrastructure projects.
- Marine engineering: offshore platform supports, desalination equipment.
Chemical Composition
| Element | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) |
|---|---|---|---|---|---|---|---|
| SUS304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.00–20.00 | 8.00–10.50 |
| SUS405 | ≤0.08 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 11.50–14.50 | - |
| SUS410 | ≤0.15 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 11.50–13.50 | ≤0.60 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) | Hardness (HB) |
| SUS304 | ≥520 | ≥205 | ≥40 | ≤187 |
| SUS405 | ≥415 | ≥205 | ≥22 | ≤183 |
| SUS410 | ≥450 | ≥205 | ≥20 | ≤217 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| SUS316 / SUS316L | Suitable for applications requiring high corrosion resistance, especially in chloride-containing or marine environments, commonly used in chemical equipment and coastal facilities. |
| SUS430 | High cost-effectiveness, suitable for mildly corrosive environments, commonly used in decorative or structural components where high strength is not required. |
| SUS201 / SUS202 | Economical austenitic stainless steel, suitable for moderately corrosive environments, commonly used in applications where cost control is a priority and exposure conditions are not too harsh. |
Products Show
Testing Equipment
Factory Equipment
Pickling equipment
Products Package
FAQ
Q: What dimensional tolerances can you achieve?
A: Our tubing is manufactured strictly according to international standards such as ASTM A554 and JIS G3446, with an outer diameter tolerance of ±0.03mm.
Q: How does the strength of the welded seam compare to that of seamless tubing?
A: Our welds utilize advanced ERW welding technology, achieving full penetration and strict process control. After forming and sizing, the mechanical strength and ductility of the weld are comparable to the base material, making it suitable for load-bearing and structural applications.
Q: What surface finishes are available?
A: Standard surface finishes include pickling and passivation, and a 2B finish. Optional surface finishes such as BA, polished, mirror finish, or electropolishing are available upon request, depending on the application and appearance requirements.
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