4 Inch ASTM A500 Galvanized ERW Black Welded Steel Pipe
Outer Diameter 114.3mm-610mm ( 4" - 24 " ) ASTM A500 galvanized ERW Black Steel Pipe
We manufacture & export ERW steel pipes that are available in various qualities, wall thicknesses and diameters of the finished pipes. While manufacturing ERW steel pipes only high-quality, continuous-cast, fully killed, control-rolled, fine-grain, low-carbon steel is used. High performance ERW steel pipes and tubing possess high strength corrosion resistance, higer deformability, better strength and toughness.
Characteristics of galvanized steel pipes Black and galvanized steel pipes are both made of steel, but galvanized pipes have a zinc coating while black pipes do not. Therefore, galvanized pipes are more expensive and more durable. How does the galvanization protect steel pipes? The zinc of galvanized steel pipes serves as a sacrificial layer. It will rust before the steel beneath it, allowing the integrity of the pipe to remain intact for much longer time than regular pipes. Moreover, even if the zinc layer is scratched or damaged, it can still protect the steel beneath it. How long will galvanized steel pipes last? The thicker your zinc coating, the longer the pipe lasts. The environment also plays a crucial role in determining the pipe’s life span. If the pipes are placed in highly corrosive conditions, they often last from 50 to 100 years. Applications of black steel pipes and galvanized steel pipes Black steel pipes and galvanized steel pipes are the two most common types of pipes used for transporting liquid and gas.
Quality Standards:
ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
Supply ability: 50,000 Metric Tons/Month
Delivery time: 7 day at fastest, based on total quantity or as customers’ requirements
Loading port: Tianjin(Xingang) Port
Payment Term: T/T, L/C at sight or negotiate
Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.
| Specification | OD | 114.3mm-610mm (4"-24") |
| WT | 3.5mm-22mm |
| Length | 3mtr-18mtr |
| Surface | Lightly oiled, Hot dip galvanized, Electro galvanized, Black painted, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE) |
| End | Plain/square ends (straight cut, saw cut, and torch cut), or Beveled ends, or Threaded ends, or Grooved ends. |
| Steel grades | ASTM A500: GR.A, GR.B, GR.C, GR.D |
| Coating Standard | ISO 21809: Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems
DIN 30670: Polyethylene coatings of steel pipes and fittings AWWA C210: Liquid-Epoxy Coatings and Linings for Steel Water Pipe and Fittings
AWWA C213: Fusion-Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines |
Our Advantage:
Huayang specialized in manufacturing welded carbon steel pipes for 14 years. The annual output is around 1,000,000 tons. Our products have been exported to 40 countries and regions till now, such as Canada, Hong Kong, Vietnam, Bangladesh, The U.A.E, America, Spain, Italy, Netherlands, Kuwait, Saudi Arabia etc. So any inquiry or special demands will get fast and most professional reply.
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4 Inch ASTM A500 Galvanized ERW Black Welded Steel Pipe Images
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