ПРОГРЕСС
Q235B U-channel hot-dip galvanized for structural frames, purlins, supports and heavy racking.
Hot-dip galvanized channel steel is Q235B U-section channel immersed in a molten zinc bath. The thick zinc coating protects the flanges, web and inner corner against corrosion, giving excellent durability in humid, coastal and industrial atmospheres. It is widely used where a strong, corrosion-resistant structural section is required.
Key Advantages
Химический состав (Q235B Base)
| Элемент | С | Мин. | И | п | С | Фе |
|---|---|---|---|---|---|---|
| Содержание % | 0.12 – 0.20 | 0.30 – 0.70 | ≤ 0.30 | ≤ 0.045 | ≤ 0.045 | Balance |
Механические свойства
- Yield strength: ≥ 235 МПа
- Tensile strength: 370 – 500 МПа
- Удлинение (δ): ≥ 26 %
- Zinc coating: 45 – 85 μm (≥ 275 g/m²)
- Плотность: 7.85 g/cm³
Standard Sizes
| Параметр | Диапазон |
|---|---|
| Channel size (h×b) | 50×37 – 300×90 mm |
| Web / flange thickness | 4.5 – 12.5 мм |
| Длина | 6 m / 12 m, cut to order |
| Zinc layer | 45 – 85 μm (Z275 or higher) |
| Стандартный | ГБ/Т 706 / В 10279 / АСТМ А36 / ИСО 1461 |
Приложения
Galvanized channel steel is used for roof purlins and girts, structural framing, heavy-duty racking and shelving, trailer and truck frames, cable tray supports, machine bases, billboard structures, agricultural buildings and general steel construction. For L-section profiles see our hot-dip galvanized angle steel.
Processing & Упаковка
Cutting, бурение, punching and bending available. Channels are bundled with steel straps on wooden dunnage, wrapped for sea transport.
Send channel size, толщина, length, zinc layer and quantity — we confirm price within 24 hours.
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