High Frequency Welded Pipe
Carbon Steel High Frequency Welded Pipe Api 5l Grade X70 Psl1 Psl2
Price: Negotiable
MOQ: 50-100 tons
Delivery Time: 25-40 days
High frequency welding (HFW) steel pipe is that ERW pipe produced with a welding current frequency equal to or greater than 70 kHZ. 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. HFW is a solid resistance heat energy. The high frequency current pass through the metal conductor, will produce two peculiar