High Frequency Welding GB / T3091 Api 5l Grade B ERW Pipe
High Frequency Welding GB / T3091 Api 5l Grade B ERW Pipe
ERW (Electric Resistance Welded), HFI (High Frequency Induction), HFW (High-Frequency Welding)
The oil and petroleum industries use black steel pipe for moving large quantities of oil through remote areas. Black steel pipe’s strength makes it ideal for transferring water and gas in rural and urban areas and for conduits that protect electrical wiring and for delivering high-pressure steam and air. Additional uses for black steel pipes include gas supply inside and outside homes, water wells high-frequency and sewage systems. This is advantageous since black steel pipe needs very little maintenance. Black steel pipes are never used for transferring drinking water.
ERW steel pipes and tubes are available in various merits, wall thicknesses, finished and diameter, which are majorly used in various industrial purposes, fencing, scaffolding, etc.
The biggest difference between ERW pipe and seamless steel pipe is that ERW pipe has welding line, which is the same as welded steel pipe, but seamless black steel pipe doesn’t have, either does the welded steel pipe. Furthermore, the welding line of ERW pipe is the key to the quality of ERW steel pipe. The more unrecognizable the welding line of ERW pipe is, the higher quality ERW pipe has.
Quality Standards:
GB/T3091 Welded steel pipe for low pressure liquid delivery and construction
Delivery time: 7 day at fastest, based on total quantity or as customers’ requirements
Supply ability: 50,000 Metric Tons/Month
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)
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| End | Plain/square ends (straight cut, saw cut, and torch cut), or Beveled ends, or Threaded ends, or Grooved ends. | |
| Steel grades |
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| Coating Standard |
ISO 21809: Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems AWWA C210: Liquid-Epoxy Coatings and Linings for Steel Water Pipe and Fittings
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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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Have questions about our products or want to discuss a custom order? Our team is ready to help you.