Product name: ERW steel pipeMaterial: Carbon steelSize: 406.4*12.7*6000mmStandard: API 5L/ASTM A53Quantity: 5000 tonsMany cooperations have given the customer full confidence in THREEWAY STEEL.

At present, there are two standards for 3PE anti-corrosion steel pipes, namely GB/T 23257-2009 and GB/T 23257-2017. GB/T 23257-2017 is a new standard and was implemented in December 2017. The two standards differ mainly in the following aspects:3PE anti-corrosion steel pipe1. The design temperature

Product name: Coated steel pipeMaterial: Carbon steelSize: 42.2*4.85*6000mmStandard: API 5LQuantity: 1000 tonsMany cooperations have given the customer full confidence in THREEWAY STEEL.

The first may be due to the stress of the spiral seam submerged arc welded steel pipe. That is, the residual stress and welding stress after the steel pipe is formed. Secondly due to the presence of hydrogen. If the flux is not dried enough, the preheating temperature is not sufficient or the prehea