PROGRESSO
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.
Vantaggi principali
Composizione chimica (Base Steel Q235B)
| Elemento | C | E | Mn | P | S |
|---|---|---|---|---|---|
| Contenuto % | ≤ 0.20 | ≤ 0.35 | 0.30 – 0.70 | ≤ 0.045 | ≤ 0.045 |
Proprietà meccaniche
- Resistenza alla trazione (σb): 375 – 460 MPa
- Forza di rendimento (σs): ≥ 235 MPa (for thickness ≤ 16 mm)
- Allungamento (δ5): ≥ 26 %
- Zinc coating weight: 30 – 275 g/m² (double side, nominal)
Dimensioni standard
| Parametro | Allineare |
|---|---|
| Diametro esterno | 21.3 – 219 mm (1/2″ – 8″ NB) |
| Spessore della parete | 1.8 – 6.0 mm |
| Lunghezza | 5.8 M / 6 M / 12 M (tagliato a misura) |
| Finisce | Plain ends, beveled or threaded on request |
| Standard | BSEN 10255 / ASTM A53 / GB/T 3091 |
Applicazioni
GI round pipe is widely used in fencing, impalcature, telai per serre, green house tubing, corrimano, curtain wall supports, drainage and irrigation. For hollow section framing see our galvanized square tube; for structural hot rolled pipe see 20# tubo senza saldatura.
Elaborazione & Confezione
Taglio, filettatura, slotting and painting available. Pipes are bundled with steel strips and protected by end caps on wooden pallets for ocean shipment.
Invia OD, PESO, length and quantity — we confirm price and stock within 24 ore.
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