Fabrica de tuburi din oțel inoxidabil Foshan Xinliheng
201 / 304 Stainless Steel Seamless Square Tube
Seamless Strength. Dual Material Choice. Engineered for Performance.
🔲 No Weld Seam. Maximum Integrity. Choose: Cost-Effective 201 or Premium 304.
Introducing 201 / 304 Stainless Steel Seamless Square Tubes —
precision-engineered seamless structural profiles designed for high-pressure, de înaltă rezistență, and critical applications where uniformity, durability, and reliability are non-negotiable.
Unlike welded tubes, our seamless square tubes are formed in a single extrusion process — eliminating weak points along the weld line. This results in:
- ✅ Higher burst pressure resistance
- ✅ Superior structural integrity
- ✅ Uniform wall thickness & dimensional accuracy
- ✅ Ideal for load-bearing, hydraulic, and precision machinery use
Disponibil în SUS201 (economical) sau SUS304 (rezistență premium la coroziune), these tubes offer the perfect balance of performance, cost, si longevitate for industrial, mechanical, and architectural projects worldwide.
✅ Why Choose Our 201/304 Seamless Square Tubes?
1. True Seamless Construction – No Weak Points
- Manufactured via hot extrusion + cold drawing – no weld seam
- No risk of weld cracking, leakage, or uneven stress distribution
- Perfect for high-pressure systems, structural frames, and dynamic loads
- Smooth internal surface – ideal for fluid/gas transport or cable routing
2. Dual Material Options – Optimize Cost & Performance
| Nota | Cel mai bun pentru | Rezistenta la coroziune | Eficiența costurilor |
|---|---|---|---|
| SUS201 | Utilizare industrială în interior, medii uscate, cost-sensitive projects | Moderat | ✅✅✅ (Cel mai economic) |
| SUS304 | Expunerea în aer liber, humid conditions, food/pharma equipment | Ridicat | ✅✅ (Durabilitate premium) |
💡 Choose 201 for budget-friendly structural needs. Choose 304 for long-term corrosion resistance and broader application range.
3. Precision Dimensions & Tight Tolerances
- Gama de dimensiuni: 10×10mm – 100×100mm (outer dimensions)
- Wall Thickness: 1.0mm – 6.0mm
- Lungime: 1m, 2m, 3m, 4m, 5.8m, 6m (custom cut-to-length available)
- Toleranţă:
- Dimension: ±0,1 mm
- Wall Thickness: ±0,08 mm
- Straightness: < 0.5mm/m
- Proces: Hot Extruded → Cold Drawn (CD) for enhanced strength and finish
4. Available Surface Finishes
- Murat & Annealed (2B) – standard industrial finish, smooth and clean
- Coacet strălucitor (BA) – reflective, low roughness, used in precision equipment
- Polished (Mirror 8K or Hairline HL) – decorative-grade finish for visible applications
- Oiled or Dry – anti-rust protection options
5. Rigorous Quality Control & Certificari
- Standard Compliance: ASTM A554, ASTM A312, JIS G3463, ISO 1127
- Testing Included:
- Testare cu curenți turbionari (ECT)
- Hydrostatic Test (opțional)
- Tensile Test
- Flattening Test
- Intergranular Corrosion Test (for 304)
- Certificari: ISO 9001, SGS, RoHS
- MTR (Raport de testare al morii) provided with every batch
- Ambalare: Hârtie antirugină + folie de plastic + steel-banded wooden pallet (sigur pentru export)
🏭 Premium Applications
| Industry | Use Cases |
|---|---|
| Industrial Machinery | Machine frames, brațe robotizate, linear guides, jigs & fixtures |
| Hydraulic & Pneumatic Systems | Fluid conveyance, cylinder components, high-pressure lines |
| Automobile & Transportation | Chassis parts, roll cages, interior support structures |
| Construction & Architecture | Load-bearing columns, structural supports, contravantuirea seismica |
| Energy & Utilities | Solar mounting systems, battery enclosures, pump frames |
| Mâncare & Pharma Equipment | Processing racks, conveyor frames, hygienic structures (304 only) |
🔧 Product Specifications
| Parametru | Detalii |
|---|---|
| Material | SUS201 sau SUS304 (1.4301 / 06Cr19Ni10) |
| Shape | Square Tube – Seamless |
| Outer Size (mm) | 10×10 – 100×100 |
| Wall Thickness | 1.0mm – 6.0mm |
| Lungime | 1m, 2m, 3m, 4m, 5.8m, 6m (custom) |
| Proces | Seamless (Hot Extruded + Tras la rece) |
| Finisaj de suprafață | 2B (Murat), BA (Bright), 8K Mirror, Hairline HL |
| Toleranţă | ±0,1 mm (size), ±0,08 mm (perete) |
| Standards | ASTM A312, ASTM A554, JIS G3463, ISO 1127 |
| Opțional | MTR, test hidro, marcaj cu laser, OEM packaging |
💬 Feedback-ul clienților
“We switched from welded to seamless 304 square tubes for our machine frames — zero failures after 18 months. Worth the investment.”
— Robert, Mechanical Engineer, Germany
“Used SUS201 seamless tubes for indoor equipment. Strong, straight, and 20% cheaper than 304. Perfect for our budget.”
— Anita, Procurement Lead, India
📞 Solicitați o mostră gratuită & Citat azi!
✅ Tell us your size, material, and finish – vom oferi un fast, accurate quote
✅ Probă gratuită (100-200 mm) for quality & fit testing
✅ MOQ scăzut: 50 pcs per size (negociabil pentru ordinele de probă)
✅ OEM/ODM acceptat – marcă privată, custom lengths, gravare logo
👉 Contactați-ne acum sau E-mail: sales@xlhsteel.com
📞 +86 133 6030 1537 | 🌐 www.xlhsteel.com
🌐 Why Choose Our 201/304 Seamless Square Tubes?
- ✅ No Weld Seam = Higher Strength & Reliability
- ✅ Dual Material Choice – Save with 201 or Upgrade to 304
- ✅ Precision Tolerances – Ideal for Engineering & Mașini
- ✅ Global Standards Compliant – Trusted Quality Worldwide
Strength without compromise. Precision without seams.
