Z350 Z80 Galvanized Pipe
Product
- Stainless Steel
- Stainless Steel Sheet/Plate Stainless Steel Coil Stainless Steel Tube/Pipe Stainless Steel Bar Stainless Steel Wire
- Carbon Steel
- Carbon Steel Sheet/Plate Carbon Steel Tube/Pipe Carbon Steel Coil Carbon Steel Bar Bulb Flat Bar Weathering Steel Wear Plate Silicon Steel Coil
- Galvanized Steel
- Galvanized Steel Sheet/Plate Galvanized Steel Coil Galvanized Steel Tube/Pipe Galvanized Steel Wire PPGI Coil
- Aluminum
- Aluminum Coil/Strip Aluminum Sheet/Plate Aluminum Tube/Pipe Aluminum Bar/Rod Aluminum Circle/Wafer Aluminum Wire Aluminum Profile
Galvanized Steel Tube/Pipe
DX53D DX55D Galvanized Pipe
Product Introduction
| Basic Classification & Identification | |
| Parameter | Description / Options |
| Product Name | Galvanized Steel Pipe / GI Pipe |
| Product Forms | Round Pipe / Square Pipe / Rectangular Pipe / Oval Pipe |
| Manufacturing Processes | Hot-Dip Galvanized (HDG) / Pre-Galvanized (Pre-painted) |
| End Finish | Plain End (PE) / Beveled End (BE) / Threaded & Coupled (T&C) |
| Joining Methods | Threaded joints with GI sockets / Flanged connections / Grooved couplings |
| Delivery Condition | Single random length (5.8–6.1m) / Double random length (10.9–12.2m) / Fixed length |
| Common Steel Grades for GI Pipes | ||
| Grade | Equivalent | Typical Applications |
| ASTM A53 Grade A | Low carbon | General plumbing, low-pressure applications |
| ASTM A53 Grade B | Medium carbon | High-temperature service, structural applications |
| S235JR | EN 10025 | General structural purposes |
| S275JR | EN 10025 | Higher strength structural applications |
| STK400 / STK500 | JIS G3444 | Structural pipe applications |
| Q195 / Q235 / Q345 | GB/T 3091 | Low-pressure fluid transportation |
| Dimensional Ranges by Pipe Shape | |||
| Parameter | Round Pipe | Square Pipe | Rectangular Pipe |
| Outer Diameter / Size | 15 mm – 1,420 mm | 10 × 10 mm – 700 × 700 mm | 10 × 20 mm – 400 × 600 mm |
| Wall Thickness | 0.6 mm – 25 mm | 0.6 mm – 25 mm | 0.6 mm – 25 mm |
| Standard Length | 6 m / 12 m | 6 m / 12 m | 6 m / 12 m |
| Dimensional Tolerances (General) | |||
| Parameter | Tolerance | ||
| Outside Diameter (OD ≤ 50.8 mm) | ±0.4 mm | ||
| Outside Diameter (OD > 50.8 mm) | ±1% of specified OD | ||
| Wall Thickness | ±12.5% of nominal | ||
| Length (Fixed Length) | ±3 mm to +6 mm | ||
| Straightness | 0.2% of total length | ||
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