تقدم
Q235B round steel tube hot-dip galvanized for scaffolding, سياج, greenhouse and structural applications.
Hot-dip galvanized round steel tube is manufactured from Q235B welded pipe and zinc-coated in a hot-dip bath. The thick zinc layer (typically 45–85 μm) protects both the outer surface and the pipe bore, giving decades of service in outdoor and humid environments. It is the preferred tube for scaffolding, railings and structural supports.
المزايا الرئيسية
التركيب الكيميائي (Q235B Base)
| عنصر | ج | مينيسوتا | و | ص | س | Fe |
|---|---|---|---|---|---|---|
| محتوى % | 0.12 - 0.20 | 0.30 - 0.70 | ≤ 0.30 | ≤ 0.045 | ≤ 0.045 | توازن |
الخصائص الميكانيكية
- قوة العائد: ≥ 235 الآلام والكروب الذهنية
- قوة الشد: 370 - 500 الآلام والكروب الذهنية
- استطالة (د): ≥ 26 %
- Zinc coating: 45 - 85 μm (≥ 275 g/m²)
- كثافة: 7.85 جم/سم3
الأحجام القياسية
| المعلمة | يتراوح |
|---|---|
| Outside diameter | 21.3 - 219.1 مم (1/2″ – 8″) |
| سمك الجدار | 1.0 - 6.0 مم |
| طول | 6 m standard, cut to order |
| Zinc layer | 45 - 85 μm (Z275 or higher) |
| معيار | جيجابايت/ت 3091 / في 10255 / ASTM A53 / ISO 1461 |
التطبيقات
Hot-dip galvanized round tube is used for scaffolding and shoring, highway and balcony railings, إطارات الدفيئة, agricultural and livestock fencing, water supply and sprinkler lines, cable conduit, flagpoles, playground equipment and general structural supports. For square and rectangular profiles see our pre-galvanized square & rectangular tube.
يعالج & التعبئة والتغليف
قطع, threading, drilling and bending available. Tubes are bundled with steel straps, capped and packed in wooden crates or pallets.
Send OD, سمك الجدار, طول, zinc layer and quantity — we confirm price within 24 ساعات.
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