CARBON nahtlose Stahlrohre KONFORM API5L Gr.B

This product adopts high-quality coiled plate, after re-examination cut vertically or strip coil to shaping automatically and melting. Get rid of burrs inside and outside the pipe, while the computer controls the best melting temperature. The qualified steel pipe after the non-destructive inspection in the seldom oxidize environment, wholly hot to 850 then take out of the furnace. Get rid of the phosphorus, through tension reduce machine hot-rolling several times, which make metallographic organization grain state size of geometry and mechanical performance average. Our products are widely used in flammable and non-flammable fluid transferring pipe and boiler and steel construction. It has filled the domestic gaps