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Welded Steel Pipes ASTM A53 Schedule 40 Carbon galvanized Steel Pipe
Galvanized steel pipe is a welded steel pipe with a hot-dip galvanized or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of steel pipes and prolong the service life. Galvanized pipes have a wide range of uses. In addition to being used as pipeline pipes for general low-pressure fluids such as water, gas, etc., they are also used as oil well pipes and oil pipes in the petroleum industry, especially in offshore oil fields, oil heaters in chemical coking equipment, and condensation cooling. Pipes for septic tank, coal distillation washing oil exchanger, trestle pipe piles, supporting frame pipes for mine tunnels, etc.
Galvanized Steel Pipe Specification;
|
Size | outside saimeter: 20mm – 508mm wall thickness: 1.2mm x 12mm length: <=12m. as required |
| Standard | API 5L;ASTM A523,ASTM A252;GB/T8711;BS 6363 etc |
| Material | Q195, Q235, Q345; A53 ;ST35,ST42, 16Mn,etc. |
| Fabrication | Plain ends, cutting, threading, etc. |
| Surface Treatment | 1. PVC,black and color painting |
| 2. Transparent oil,anti-rust oil | |
| 3. According to clients requirement | |
| Package | Bundle;Bulk;Plastic bags ,etc |
Others | We can do special orders as customer’s requirement. |
| We also can provide all kinds of steel hollow pipes. | |
| All the production process are made under the ISO9001:2008 strictly |
| Regular Sizes of Galvanized Steel Pipe | |||||
| DN | NB | OD (mm) | WT (mm) | Pcs/Bundle | Regular Length: 5.7m, 5.8m, 6.0m, 6.4. |
| 15 | 1/2" | 19mm-21.3mm | 1.5mm-3.0mm | 217 | |
| 20 | 3/4" | 25mm-26.9mm | 1.5mm-3.0mm | 169 | |
| 25 | 1" | 32mm-33.7mm | 1.5mm-3.0mm | 127 | |
| 32 | 1.1/4" | 40mm-42.4mm | 1.5mm-4.0mm | 91 | |
| 40 | 1.1/2" | 47mm-48.3mm | 1.5mm-4.0mm | 91 | |
| 50 | 2" | 58mm-60.3mm | 1.5mm-4.0mm | 61 | |
| 65 | 2.1/2" | 73mm-76.1mm | 1.5mm-4.0mm | 37 | |
| 80 | 3" | 87mm-88.9mm | 1.5mm-9.5mm | 37 | |
| 100 | 4" | 113mm-114.3mm | 2.0mm-9.5mm | 19 | |
| 125 | 5" | 140mm-141.3mm | 3.0mm-9.5mm | 19 | |
| 150 | 6" | 165mm-168.3mm | 3.0mm-12.0mm | 19 | |
| 200 | 8" | 219.1 | 3.2mm-12.0mm | 7 | |
Galvanized steel pipe has the following production steps:
Black parts inspection→hanging→degreasing→rinsing→pickling→cleaning→dipping flux→hot air drying→hot-dip galvanizing→cooling→passivation and rinsing→unloading→inspection, trimming→packaging, storage, transportation .
Galvanized Steel Pipe Features:
1. Corrosion resistance: Galvanizing is an economic and effective rust prevention method that is often used. About half of the world's zinc output is used in this process. Not only does zinc form a dense protective layer on the steel surface, but it also has a cathodic protection effect. When the zinc coating is damaged, it can still prevent the corrosion of the iron base material by cathodic protection.
2. Good cold bending and welding performance: mainly used low carbon steel grade, the requirements have good cold bending and welding performance, as well as a certain stamping performance
3. Reflectivity: It has high reflectivity, making it a barrier against heat
4, the coating toughness is strong, galvanized layer forms a special metallurgical structure, this structure can withstand mechanical damage in transport and use.
Galvanized Steel Pipe Packing :
bundles tied with steel trips; In bulk ; With waterproof
