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.
Key Advantages
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
- Tensile strength (σb): 375 – 460 MPa
- Yield strength (σs): ≥ 235 MPa (for thickness ≤ 16 mm)
- Élongation (δ5): ≥ 26 %
- Zinc coating weight: 30 – 275 g/m² (double side, nominal)
Standard Sizes
| Parameter | Range |
|---|---|
| Outside diameter | 21.3 – 219 mm (1/2″ – 8″ NB) |
| Wall thickness | 1.8 – 6.0 mm |
| Longueur | 5.8 m / 6 m / 12 m (cut to length) |
| Ends | Plain ends, beveled or threaded on request |
| Standard | BS EN 10255 / ASTM A53 / GB/T 3091 |
Applications
GI round pipe is widely used in fencing, scaffolding, greenhouse frames, green house tubing, handrails, curtain wall supports, drainage and irrigation. For hollow section framing see our galvanized square tube; for structural hot rolled pipe see 20# seamless pipe.
Processing & Emballage
Cutting, threading, slotting and painting available. Pipes are bundled with steel strips and protected by end caps on wooden pallets for ocean shipment.
Send OD, WT, length and quantity — we confirm price and stock within 24 heures.
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