تقدم
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
التركيب الكيميائي (Base Steel Q235B)
| عنصر | ج | و | مينيسوتا | ص | س |
|---|---|---|---|---|---|
| محتوى % | ≤ 0.20 | ≤ 0.35 | 0.30 - 0.70 | ≤ 0.045 | ≤ 0.045 |
الخصائص الميكانيكية
- Tensile strength (σb): 375 - 460 الآلام والكروب الذهنية
- Yield strength (σs): ≥ 235 الآلام والكروب الذهنية (for thickness ≤ 16 مم)
- استطالة (δ5): ≥ 26 %
- Zinc coating weight: 30 - 275 g/m² (double side, nominal)
Standard Sizes
| Parameter | Range |
|---|---|
| Outside diameter | 21.3 - 219 مم (1/2″ – 8″ NB) |
| Wall thickness | 1.8 - 6.0 مم |
| طول | 5.8 م / 6 م / 12 م (cut to length) |
| Ends | Plain ends, beveled or threaded on request |
| معيار | بكالوريوس إن 10255 / ASTM A53 / جيجابايت/ت 3091 |
التطبيقات
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 & التعبئة والتغليف
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 ساعات.
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