Seamless Pipe vs Welded Pipe
1. Different outer surfaces
It can be seen from the outer surface of the seamless steel pipe that there is no gap in the whole body; the welded steel pipe has a welding gap.
2. Different molding pro...
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Special Thread for Oil Casing Pipe
API casing threads are not suitable for the development of high-pressure gas fields, so many manufacturers have developed special joints with their own characteristics. Among them, the gas-sealed spec...
Differences between High Frequency Resistance Welded Pipe and SAW Pipe
1. Comparison of process characteristics and quality performance of several steel pipes:
ERW Pipe is pided into induction welding and contact welding according to different welding methods. Using hot-...
Seam pipe, Seamless pipe, Seamless stainless steel pipe
Seamless steel pipe is a long steel with a hollow section and no joints on the periphery.
Simply put, stainless steel pipes are made of stainless steel. Stainless steel pipes are also pided into seaml...
ASTM A53 Grade B ERW, A53B ERW Pipe, Grade B A53 Welded Pipe
ASTM A53 Pipe, A53 Grade B ERW, A53B ERW Pipe, Grade B A53 Welded Pipe, ERW Steel Pipe Supplier, Exporter
ASTM A53 Grade B ERW Pipe is a carbon steel pipe that comes under the ASTM A53 specificat...
Application and Material of Seamless Steel Pipe
Seamless steel pipes are pided into the following varieties due to their different uses:
1. GB/T8162-1999 (Seamless steel pipe for structure). Mainly used for general structure and mechanical structu...
What is Electric Resistance Welding?
Electric resistance welding (ERW) refers to a method that uses a strong current to pass through the contact point between the electrode and the workpiece, and heat is generated by the contact resistan...
What is ERW steel pipe?
ERW steel pipes are manufactured by low-frequency or high-frequency resistance "resistance". They are round pipes welded from steel plates with longitudinal welds. It is used to transport oil, natural...
What is HFW steel pipe?
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 co...
Differences Between ERW and HFW Steel Pipe
The first is to know the difference between ERW and HFW welding processes.
ERW welding process refers to the heat generated by the resistance of the current flowing through the connecting metal. The...
