All Carbon steel pipe such as Casing pipe and Tubing pipe made to API specifications uses seamless or electric-weld supplying processes. There are many Differences between Seamless ERW HFW steel pipeamp; ERW Pipe. The main Difference is that the Seamless Piping is suppliers by hot-working steel or, if necessary, by subsequently cold-finishing the hot-worked product
ERW (Electric Resistance Welded) pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24 OD. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge.
Differences Between ERW and HFW Steel PipeERW steel pipe includes HFW steel pipe ERW is the general term for electric resistance welded steel pipe. It can be divided into two types:alternating current welding (AC) and direct current welding (DC). According to the different frequency, AC welding can be divided into low frequency welding, intermediate frequency welding, ultra high
HFW is required in API 5L PSL2 ERW steel pipe According the API 5L and ISO 3183 specification, for PSL 2 pipes in welded process the HFW welding is a mandatory requirements for ERW steel pipes. As it is an improvement from the inherent problems of hardness, lack of fusion and susceptibility of stress corrosion cracking (SCC).
ERW Steel Pipe HFW Steel Pipe HunapipeHFW welded steel pipes are widely preferred in Oil, Natural Gas, Water and other liquids transportation and distribution lines, heating, cooling, ventilation piping and steel structures for construction and other general purposes by means of precise production tolerances and high capacity manufacturing method.
It can produce spiral welded pipe 100,000 tons annually with diameter 219-3000mm and thickness 5-30mm; HFW welded steel pipe 660,000 tons annually with diameter 33.4-508mm and thickness 3-22mm , the steel grades are Q235B, Q345B, GR.B, H40, J55, K55, X42, X52, X70 , X80, N80 Class1, P235, P265, S235, S275, S355.
ERW Transmission Pipe, HFW Transmission PipeERW/HFW Transmission Pipe ERW/HFW Transmission Pipe:standard:API 5CT,API 5L, ISO 3183, EN 10217-1, Transmission Pipe:Use For conveying gas, water
ERW/HFW Transmission Pipe:standard:API 5CT,API 5L, ISO 3183, EN 10217-1, Transmission Pipe:Use For conveying gas, water and oil either in the oil or natural gas industries ERW Structural Pipe Standard:ASTM A53/A53M, ASTM A252, EN10219-1, AS/NZS 1163, AS/NZS 1074, ASTM A500, Structural Pipe:Uses:for kinds of structural component,parts
ERW/HFW Electric Resistance Welded Steel Pipe/Tube Overview of ERW/HFW Pipes. ERW pipe is the acronym for electrical resistance welded steel pipe, and HFW pipe represents high-frequency welding (HFW) steel pipe ERW HFW steel pipeamp; tube. The pipes are made from steel coil and the weld seam runs parallel to the pipe. And it is one of the most versatile tools in agriculture, industry, and construction activities.
Carbon Steel Electric Resistance Welded/ High Frequency welded pipes (ERW/HFW) 6NPS [168.5 MM] to 18NPS [457.2 MM] 0.125[3.2 MM] to 0.5 [12.7MM] As per ASTM As per API 5L, API5CT As per EN / BS As per IS As per Customers specification
HFW(ERW) Steel Pipe Suppliers and Manufacturers China Among those professional HFW(ERW) steel pipe manufacturers and suppliers in China, it is here waiting for you to buy our cheap and low price ERW carbon steel pipe, straight seam weld pipe, ERW welded tube, ERW welded pipe, rectangular tube in stock. Tel: ERW HFW steel pipe-18931758335 Email:ms.lili ERW HFW steel pipehotmail .
Electric Resistance Welded/High Frequency Welded/High Frequency Induction pipe, ranging from 14 to 26 diameter. We supply ERW/HFW pipe in a variety of grades meeting ASTM/ASME and API5L standards including A/SA53, A500, API5LB, X42, X46, X52, X56, X60, X65, X70, X80 in
Pipes HF-ERW ERW HFW steel pipeamp; Tubes - Nippon SteelNIPPON STEELs ERW pipe mills produce pipe with outside diameters from 4-1/2 inches (114.3 mm) to 24 . inches (609.6 mm). The equipment to produce such pipes reflects NIPPON STEELs intent to meet the great demand for larger and heavier steel pipe. Wall Thickness. To produce pipe with wall thickness up to 0.866 inches
NIPPON STEELs ERW pipe mills produce pipe with outside diameters from 4-1/2 inches (114.3 mm) to 24 . inches (609.6 mm). The equipment to produce such pipes reflects NIPPON STEELs intent to meet the great demand for larger and heavier steel pipe. Wall Thickness. To produce pipe with wall thickness up to 0.866 inches
Structure Steel PipeStructure Pipe,ERW Pipe, High Frequency Weld Pipe, Structural Steel Tube, CS Pipe,structure steel pipe,ERW HFW steel pipe,high frequency weld pipe,circular hollow section,CHS . Size Range. Outside diameter:33mm 660mm; Wall thickness:1.2mm 25mm . Material Steel Grade
It should be noted that HFW pipe is a type of ERW pipe. High frequency welding (HFW) is a solid resistance heat energy. Through high-frequency current welding resistance, the heat generated in the contact objects, so the objected surface are heated to the plastic state, then with or without forging to achieve a combination of steels.
What is a HFW steel pipe? - ugsteelmillThe high frequency welding (HFW) is mainly used in ordinary or thin wall steel pipe. It includes contact welding and induction welding. Direct current welding is generally used for small caliber steel tubes. In general, HFW is one of ERW production methods, it adopts the high frequency welding process. So, ERW steel pipe includes HFW steel pipe.
High-frequency welding (HFW) is a solid resistance heat energy. The use of high-frequency current welding resistance heat generated in the workpiece so that the workpiece is heated to melt the welding area or near the surface of the plastic state, then applied (or not applied) forging force and achieve a combination of metals.
Differences Between ERW Steel Pipe and HFW Steel Pipe ERW steel pipe manufacturing process includes HFW. ERW have low, medium, high frequency welding processes, and HFW is specially for high-frequency electric resistance welding. The differences between ERW and HFW steel pipe, is EFW is a type of ERW process for ordinary and thin-wall thickness steel pipes.