进步
Q235B U-channel hot-dip galvanized for structural frames, 檩条, 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.
主要优势
化学成分 (Q235B底座)
| 元素 | C | 锰 | 和 | 磷 | S | 铁 |
|---|---|---|---|---|---|---|
| 内容 % | 0.12 – 0.20 | 0.30 – 0.70 | ≤ 0.30 | ≤ 0.045 | ≤ 0.045 | 平衡 |
机械性能
- 屈服强度: ≥ 235 兆帕
- 抗拉强度: 370 – 500 兆帕
- 伸长 (d): ≥ 26 %
- 镀锌层: 45 – 85 μm (≥ 275 克/平方米)
- 密度: 7.85 g/cm³
标准尺寸
| 范围 | 范围 |
|---|---|
| Channel size (h×b) | 50×37 – 300×90 mm |
| Web / flange thickness | 4.5 – 12.5 毫米 |
| 长度 | 6 米 / 12 米, cut to order |
| Zinc layer | 45 – 85 μm (Z275 or higher) |
| 标准 | 国标/T 706 / 在 10279 / ASTM A36 / 国际标准化组织 1461 |
应用领域
Galvanized channel steel is used for roof purlins and girts, structural framing, heavy-duty racking and shelving, trailer and truck frames, cable tray supports, 机器底座, billboard structures, agricultural buildings and general steel construction. For L-section profiles see our hot-dip galvanized angle steel.
加工 & 包装
切割, 钻孔, punching and bending available. Channels are bundled with steel straps on wooden dunnage, wrapped for sea transport.
Send channel size, 厚度, 长度, zinc layer and quantity — we confirm price within 24 小时.
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