JIAXING H&G BOND TRADING CO.,LTD
JIAXING H&G BOND TRADING CO.,LTD
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Grade:NGHDG-20
Product:Excellent corrosion resistance Zn(0) Hot DIP Galvanized Conduit
Decriptions
Hot-dip galvanizing (HDG), as referenced is the process of dipping fabricated steel into a kettle or vat of molten zinc.
Hot-dip galvanizing (HDG) is the process of coating iron, steel or ferrous materials with a layer of zinc. This done by passing the metal through molten zinc at a temperature of 860°F (460°C) to form zinc carbonate (ZNC03). Zinc carbonate is a strong material that protects steel and can prevent corrosion in many circumstances. Hot-dip galvanizing can be carried out cheaply and in large batches.
Physical Properties
| Inner Diameter | External Diameter | Steel pipe thickness | Pipe Length | Remark | |
| mm | in | mm | mm | mm | |
| 15 | 1/2 | 21.3 | 2.8 | 6000 | |
| 20 | 3/4 | 26.9 | 2.8 | 6000 | |
| 25 | 1 | 33.7 | 3.2 | 6000 | |
| 32 | 11/4 | 42.4 | 3.5 | 6000 | |
| 40 | 11/2 | 48.3 | 3.5 | 6000 | |
| 50 | 2 | 60.3 | 3.8 | 6000 | |
| 65 | 21/2 | 76.1 | 4.0 | 6000 | |
| 80 | 3 | 88.9 | 4.0 | 6000 | |
| 100 | 4 | 114.3 | 4.0 | 6000 | |
| 125 | 5 | 139.7 | 4.0 | 6000 | |
| 150 | 6 | 165.1 | 4.5 | 6000 | |
Application
It is widely used in conduits for installations in telecommunication, electrical and others fields.
Advantages
a. Lower cost than stainless steel
b. Lowest long-term cost
c. Reliable performance
d. Excellent resistance to mechanical damage
Steel Standard: BS4568 or GB/T4823.1
production process
Material Inspection(Steel Pipe) --- De-greasing --- Rinsing --- Pickling --- Washing --- Dipping Fluxing --- Hot Air Drying Inside and Outside Hot-dipped Galvanizing Blow --- Cooling --- Passivation and Rising --- Unloading --- Inspection and Trimming --- Type Identification Packaging and Storing and Transportation