X70 EN10210 EN10219 S275JR HFI HFW ERW Black Steel Pipe
ERW (Electric Resistance Welded), HFI (High Frequency Induction), HFW (High-Frequency Welding)
The manufacturing process of the steel pipes
The ERW Black Steel Pipes are manufactured by experienced and highly skilled workers. These pipes are developed by the superior quality of raw material which is collected from the reliable market place. All the material collected is tested before use to avoid the poor quality of substances to mix in the manufacturing of the pipes. The manufacturing process is carried out under the strict supervision of the hired expert who has an excellent knowledge about the manufacturing of the pipes.
For their smooth finish and excellent workability, the pipes move through various stages in the production process. These pipes are developed as per the demand of the clients and all the guidelines are followed that are stated by the customers.
During production, online visual inspection is also carried out for surface defects, diameter accuracy, ovality and weld bead shape. Required sample rings as per specification are cut to carry out mechanical testing of weld and body e.g. flattening test, bend test etc. All pipes are then processed in finishing and testing area for pipe end preparation i.e. Facing/Bevelling followed by hydrostatic pressure testing as per
specification.
Individual pipe is then visually inspected for the parameters specified in the specification before offering to the customer's inspection, if any. Data of all tests is re-verified and submitted to the customers.
Quality Standards:
EN10217 Welded steel tubes for pressure purposes. Technical delivery conditions. Non-alloy steel tubes with specified room temperature properties
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.
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
| 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 |
EN10210/EN10219: S235, S235JR, S235J2H, S275, S275JR, S355JRH, S355J2H
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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
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
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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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X70 EN10210 EN10219 S275JR HFI HFW ERW Black Steel Pipe Images
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