Usine de tubes en acier inoxydable Foshan Xinliheng
201 / 304 Tube carré sans soudure en acier inoxydable
Seamless Strength. Dual Material Choice. Engineered for Performance.
🔲 No Weld Seam. Maximum Integrity. Choose: Cost-Effective 201 or Premium 304.
Présentation 201 / 304 Stainless Steel Seamless Square Tubes —
precision-engineered seamless structural profiles conçu pour high-pressure, high-strength, and critical applications où 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
Disponible en SUS201 (economical) ou SUS304 (résistance à la corrosion supérieure), these tubes offer the perfect balance of performance, cost, and longevity 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
| Grade | Idéal pour | Résistance à la corrosion | Rentabilité |
|---|---|---|---|
| SUS201 | Utilisation industrielle intérieure, environnements secs, cost-sensitive projects | Modéré | ✅✅✅ (Le plus économique) |
| SUS304 | Exposition extérieure, humid conditions, food/pharma equipment | Haut | ✅✅ (Durabilité supérieure) |
💡 Choose 201 for budget-friendly structural needs. Choose 304 for long-term corrosion resistance and broader application range.
3. Dimensions de précision & Tight Tolerances
- Gamme de tailles: 10×10mm – 100×100mm (outer dimensions)
- Épaisseur de paroi: 1.0mm – 6.0mm
- Longueur: 1m, 2m, 3m, 4m, 5.8m, 6m (custom cut-to-length available)
- Tolérance:
- Dimension: ±0,1mm
- Épaisseur de paroi: ±0,08 mm
- Straightness: < 0.5mm/m
- Processus: Hot Extruded → Cold Drawn (CD) for enhanced strength and finish
4. Available Surface Finishes
- mariné & Annealed (2B) – standard industrial finish, smooth and clean
- Recuit brillant (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 & Certifications
- Standard Compliance: ASTMA554, ASTMA312, JIS G3463, OIN 1127
- Testing Included:
- Tests par courants de Foucault (ECT)
- Hydrostatic Test (facultatif)
- Tensile Test
- Flattening Test
- Intergranular Corrosion Test (for 304)
- Certifications: OIN 9001, GV, RoHS
- MTR (Rapport d'essai du moulin) provided with every batch
- Conditionnement: Papier antirouille + film plastique + steel-banded wooden pallet (sécurité à l'exportation)
🏭 Premium Applications
| Industrie | Cas d'utilisation |
|---|---|
| Industrial Machinery | Machine frames, bras robotiques, linear guides, jigs & fixtures |
| Hydraulic & Pneumatic Systems | Fluid conveyance, cylinder components, high-pressure lines |
| Automobile & Transport | Chassis parts, roll cages, interior support structures |
| Construction & Architecture | Load-bearing columns, structural supports, contreventement sismique |
| Energy & Utilities | Solar mounting systems, battery enclosures, pump frames |
| Food & Pharma Equipment | Processing racks, conveyor frames, hygienic structures (304 only) |
🔧 Spécifications du produit
| Paramètre | Détails |
|---|---|
| Matériel | SUS201 ou SUS304 (1.4301 / 06Cr19Ni10) |
| Forme | Square Tube – Seamless |
| Outer Size (mm) | 10×10 – 100×100 |
| Épaisseur de paroi | 1.0mm – 6.0mm |
| Longueur | 1m, 2m, 3m, 4m, 5.8m, 6m (custom) |
| Processus | Seamless (Hot Extruded + Étiré à froid) |
| Finition de surface | 2B (mariné), BA (Bright), 8K Mirror, Hairline HL |
| Tolérance | ±0,1mm (taille), ±0,08 mm (mur) |
| Standards | ASTMA312, ASTMA554, JIS G3463, OIN 1127 |
| Facultatif | MTR, essai hydroélectrique, marquage laser, OEM packaging |
💬 Commentaires des clients
“We switched from welded to seamless 304 square tubes for our machine frames — zero failures after 18 months. Worth the investment.”
— Robert, Mechanical Engineer, Allemagne
“Used SUS201 seamless tubes for indoor equipment. Fort, straight, et 20% cheaper than 304. Perfect for our budget.”
— Anita, Procurement Lead, India
📞 Demandez un échantillon gratuit & Citer aujourd'hui!
✅ Tell us your size, material, and finish – nous vous fournirons un fast, accurate quote
✅ Échantillon gratuit (100–200mm) for quality & fit testing
✅ Faible quantité de commande: 50 pièces par taille (négociable pour les commandes à l'essai)
✅ OEM/ODM pris en charge – marque privée, custom lengths, gravure de logo
👉 Contactez-nous maintenant ou 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 & Machinerie
- ✅ Global Standards Compliant – Trusted Quality Worldwide
Strength without compromise. Precision without seams.
