1. How does the gnawing of straight seam steel pipe happen? What is the effect on welded pipes?The gnawing edge of the straight seam steel pipe usually occurs on the slitting coil. The gnawing edge of the straight seam steel pipe is the appearance of jagged and uneven edges of the steel belt. The st

Project Location: Canada.Product: oil casing.Specifications:84*3*6000mm.Application: oil project construction.Arrival time: 07.12.2022.The steel pipes have arrived in Canada and were put into project use. Many cooperations have given the customer full confidence in THREEWAY STEEL.

1. Straight seam steel pipes should be submitted for acceptance in batches, and the batching rules should comply with the provisions of the corresponding product standards.2. The inspection items, sampling quantities, sampling locations, and test methods of straight seam steel pipes shall be by the

The annealing of straight seam steel pipe is to heat the steel pipe to a temperature and keep it warm at this temperature and then slowly cool it to room temperature. There are several types of annealing, such as annealing, spheroidizing annealing, and stress relief annealing.1. Heating the steel pi

1. Organize relevant operators, be familiar with construction drawings and regulations, formulate welding procedures, and compile welding operation instructions.2. Welders should be trained in corresponding projects and have operation qualification certificates for corresponding projects.3. Check wh

Thick-walled welded pipe is a kind of precipitation-strengthened nickel-based superalloy that is difficult to deform. It is similar in composition to the former Soviet Union's ЭИ929 alloy. The solid solution strengthening of alloy elements and the precipitation strengthening of γ' phase are very hig

Project Location: South Africa.Product: seamless steel pipe.Specifications: 4''*10m*SCH80.Application: oil drilling.Arrival time: 07.01.2022.The pipes have arrived in South Africa and were put into project use. Many cooperations have given the customer full confidence in THREEWAY STEEL.

Forming method of submerged arc steel pipe:Submerged arc steel pipe forming methods include continuous twist forming (HME), row roll forming method (CFE), UingOingExpanding forming method (UOE), roll bending forming method (RBE), JingCingOingExpanding forming method (JCOE), etc., but the most widely

1.316 stainless steel is a molybdenum-containing stainless steel. Due to the molybdenum in the steel, the overall performance of this steel is better than that of 310 and 304 stainless steel. Under high temperature conditions, when the concentration of sulfuric acid is lower than 15% and higher than

1. IPN8710 anti-corrosionWhen there are many types of corrosive media in the steel pipe, such as acid, alkali, salt, oxidant, and water vapor, the coating must be chemically inert and resistant to acid, alkali, and salt corrosion. The coating film should have a dense structure, good waterproof perme