ERW Pipe
ERW pipe meanselectric resistance welded pipe, and it is a resistance welding by 10-500 kHz of high-frequency current.
The raw material of the erw welded steel pipe is hot rolled steel coil made of steel billet, and the usual material is Q195, Q215, Q235, Q355 in China ERW pipe grade, which are same material with S195, S235, S355 in Europe, and SS400 in Japan. ERW steel pipe suppliers will cut the steel coil into strips first, the strip width is according to the perimeter of the pipes and then shaped by mold, welding, cutting, straightening, inspecting, end smoothing, packing, and final storage or dispatch.
The pipes are used widely in construction and infrastructure, such as scaffolding, water and gas delivery, fire control system, oil and heat delivery, and other low-pressure liquid delivery. Generally, the length of pipes produced by the erw steel pipes manufacturers is 6m, which can be determined according to the requirements of the buyer.
Electric Resistance Welded Steel Pipe Flow Chart
Unwinding - Leveling - Shear Butt Welding - Piston Storage - Second Leveling - Rough Forming (Finishing) - High Frequency Welding - Cooling - Sizing - Eddy Current Testing - Fixed Length Sawing - Straightening - Milling Head - Water Pressure Test-check sorting-packaging-storage
Specifications of ERW Pipe
Standard: BS 1387-1985, ASTM A53, ASTM A513, ASTM A252-98, JIS G3444-2004 STK400/500
G3452-2004, EN 10219, EN 10255-1996, DIN 2440, GB/T13793-2008
Material: Q195, Q235, Q275, Q345
Specification: 1/2”-8” (OD: 21.3mm-219.1mm)
Thickness: 1.8mm-6.0mm, +/-5% tolerance.
Surface treatment: Galvanized, oil coating,
Pipe end: Plain, groove, threaded with plastic caps or sockets.
Packing: Bare packing/bundle packing/crate packing/wooden protection at both sides of tubes
Transportation: By 20/40FT containers or by bulk vessels as per condition
ERW Steel Pipe's Advantages:
ERW pipe means "high-frequency resistance welded steel pipe", which is different from ordinary welded pipe welding process. The weld is formed by melting the base material of the steel strip body, and its mechanical strength is better than that of general welded pipe.
ERW electric welded pipe has the characteristics of high production efficiency, low cost, material saving, and easy automation. Therefore, it is widely used in aviation, aerospace, energy, electronics, automobile, light industry and other industrial sectors, and it is one of the important welding processes.
As one of the mostprofessional china steel pipe suppliers, we provide galvanized well pipe,low pressure pipe,electric welded pipe, and etc.Want to know erw pipe price or more? Contact us.
Send product request
Other supplier products
 |
Washers | Washers are cushioned between the connecting piece and the nut. Generally, there are two basic types of washers which arechina flat washersand spri... |
 |
Galvanized Guardrail | Among the famous steel pipe manufacturers in china, Hebei Tianchuang Pipe Co., Ltdis definitely one worthy of your trust. The company has successfu... |
 |
Steel-plastic Composite Pipe | Brief Introduction of SteelPlastic Composite Pipe As one of the mostprofessional road guard rails suppliers, we provide galvanized well pipe,low... |
 |
S355JR steel pipe | What is S355JR? S355JR pipe is a kind of useful structural grade steel with a minimum yield strength of 355 N/mm². S355JR pipe is widely use... |
 |
HDG Galvanized Steel Pipe For Sale | Among the famous steel pipe manufacturers in china, Hebei Tianchuang Pipe Co., Ltdis definitely one worthy of your trust. The company has successfu... |
Same products
 |
Beeswax used for candle processing | Seller: Syntop chemical Co.,Ltd. | The advantages of beeswax candles are quite notable: Natural ingredients: Beeswax is a natural s... |
 |
Greentech GR220 Electric Star Feeder | Rotary Airlock Valve Seals for Pneumatic Conveying Systems 6 Months Warranty 310kg | Seller: Greentech International (Zhangqiu) Co., Ltd | Customized Support: Tailored solutions for industrial machinery needs. High-Quality Electric P... |
 |
Bottle Cap Mold | Seller: Taizhou Qihong Mold Co., Ltd. | Bottle Cap Mold is designed for precise and consistent plastic cap production, supporting differe... |
 |
High quality beeswax used in craft production | Seller: Syntop chemical Co.,Ltd. | Beeswax has a wide range of uses in handicrafts, appearing in everything from traditional candles... |
 |
FT wax used for EVA-based hot melt adhesive | Seller: Syntop chemical Co.,Ltd. | Fischer-Tropsch wax is a commonly used performance modifier in hot melt adhesives, especially for... |
