Zinc-Aluminum-Magnesium Tube
Zinc-aluminum-magnesium (Zn-Al-Mg) coated square/rectangular hollow section — corrosion resistance up to 3–10× hot-dip galvanized, with self-healing cut edges and maintenance-free, coating-free service. Ideal for solar mounting, steel structures, highway guardrails and greenhouse frames.
| Category | Pipes & Tubes |
|---|---|
| Standards | GB, ASTM, EN, JIS, AS/NZS, GOST |
| Material / grades | S350GD, S420GD, DX51D+ZM, Q235B |
| Common sizes | 20×20×0.8 – 200×200×5.0, rect. 20×40 – 100×200 |
| Length | 6m / 9m / 12m (custom) |
| Surface | ZAM ZM120, ZAM ZM180, ZAM ZM275, ZAM ZM310 |
| Lead time | Stock orders dispatched same day; processed orders 3–5 days; custom orders scheduled on confirmation |
| Trade terms | EXW, FOB, CFR, CIF, DDP |
Detail Information
1. Zinc-Aluminum-Magnesium Tube — Overview
Zinc-aluminum-magnesium (Zn-Al-Mg) coated square/rectangular hollow section — corrosion resistance up to 3–10× hot-dip galvanized, with self-healing cut edges and maintenance-free, coating-free service. Ideal for solar mounting, steel structures, highway guardrails and greenhouse frames.
2. Specifications
| Length | 6m / 9m / 12m, customizable (cut to length) |
|---|---|
| Coating | Zinc-aluminum-magnesium alloy (Zn-Al-Mg) |
| Process | HF welded & cold-formed, inner & outer deburring |
| Standard | GB/T 34201, EN 10346 |
| Substrate | S350GD / S420GD / DX51D+ZM |
| Size range | Square 20×20–200×200mm, rectangular 20×40–100×200mm, wall 0.8–5.0mm |
| Coating weight | ZM120 / ZM180 / ZM275 / ZM310 |
3. Material Grades & Standards
We supply this product in the following grades. Other grades and standards can be sourced on request.
- S350GD
- S420GD
- DX51D+ZM
- Q235B
- GB
- ASTM
- EN
- JIS
- AS/NZS
- GOST
4. Applications
- Building & construction
- Infrastructure
- Manufacturing
5. Product Photos
6. Why Order From Shanghai Banzhijia Steel
- 20,000+ tons of ready stock across every product category
- Cutting, slitting, levelling and processing to your size
- Mill Test Certificates and export documents with each order
- Ocean freight or China–Europe rail to more than 20 countries
- Order-specific specification confirmation
- Inspection documents coordinated according to order requirements
7. Packing & Shipping
We coordinate ocean freight or China–Europe rail to the agreed destination, and prepare commercial invoices, packing lists, certificates of origin, bills of lading and Mill Test Certificates for each order.
Send an Inquiry for Zinc-Aluminum-Magnesium Tube
Related Products
Square Tube
Seamless or welded square/rectangular hollow section with uniform wall, square corners and smooth welds — light, strong and versatile for steel structures, curtain-wall columns, machinery, guardrails and decoration.
Welded Steel Pipe
High-frequency welded pipe, cost-efficient and full-range — fluid transport, structures and conduit.
Seamless Steel Pipe
No weld seam, high pressure capacity — oil, chemical, power, boiler and high-temperature service.