PROGRÈS
Q235 / Q345 welded round tube with thick zinc coating, engineered for fence, scaffold, green house and structural framing where corrosion resistance matters.
Hot-dipped galvanized round pipe is a welded carbon steel tube coated with zinc after fabrication (post-galvanized), providing sacrificial corrosion protection for outdoor and underground use. QIDAMT supplies a full range of ERW GI round pipe in BS EN / ASTM standard.
Avantages clés
Composition chimique (Base Steel Q235B)
| Élément | C | Et | Mn | P. | S |
|---|---|---|---|---|---|
| Contenu % | ≤ 0.20 | ≤ 0.35 | 0.30 – 0.70 | ≤ 0.045 | ≤ 0.045 |
Propriétés mécaniques
- Résistance à la traction (σb): 375 – 460 MPa
- Limite d'élasticité (σs): ≥ 235 MPa (for thickness ≤ 16 mm)
- Élongation (d5): ≥ 26 %
- Zinc coating weight: 30 – 275 g/m² (double side, nominal)
Tailles standards
| Paramètre | Gamme |
|---|---|
| Diamètre extérieur | 21.3 – 219 mm (1/2″ – 8″ NB) |
| Épaisseur de paroi | 1.8 – 6.0 mm |
| Longueur | 5.8 m / 6 m / 12 m (coupé à longueur) |
| Se termine | Plain ends, beveled or threaded on request |
| Standard | BS EN 10255 / ASTMA53 / GB/T 3091 |
Applications
GI round pipe is widely used in fencing, échafaudage, cadres de serre, green house tubing, mains courantes, curtain wall supports, drainage and irrigation. For hollow section framing see our galvanized square tube; for structural hot rolled pipe see 20# tuyau sans soudure.
Traitement & Emballage
Coupe, filetage, slotting and painting available. Pipes are bundled with steel strips and protected by end caps on wooden pallets for ocean shipment.
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