steel S690QL for sale with stable stock

Welded steel pipe refers to the steel pipe with a joint on the surface which is welded after the steel strip or steel plate is bent and deformed into circular, square and other expected shapes. According to different welding methods, it can be divided into arc welded pipe, high frequency or low frequency resistance welded pipe, gas welded pipe, furnace welded pipe, Bondi pipe, steel S690QL, etc. According to the weld shape, it can be divided into straight welded pipe and spiral welded pipe. Electric welded steel pipes are mainly used in oil drilling and production, machinery manufacturing, etc.; furnace welded pipes can be used as water gas pipes, large-diameter straight seam welded pipes for high-pressure oil-gas transmission, etc.; spiral welded pipes are used for oil-gas transmission, pipe piles, piers, etc. Welded steel pipe has lower cost and higher production efficiency than seamless steel pipe.

A572 Gr50 steel plate is American standard low alloy high strength plate, which belongs to high strength low alloy Nb + V structural steel plate. steel S690QL, A572 Gr50 steel is widely used in mining machinery, construction machinery, trucks, bridges and pressure vessels, especially in the construction and machinery parts with high requirements of weldability and toughness.

Our company attaches great importance to technical support and after-sales service, and has established a customer service center to provide unified technical support and service for steel S690QL various engineering projects. Customer service center has a strong technical force of technical service team, composed of a customer service center manager, several steel S690QL after-sales service personnel, responsible for unified acceptance and processing of local after-sales service needs.

The production method of seamless steel pipe can be roughly divided into cross rolling method (menesmann method) and extrusion method. The cross rolling method (menesmann method) is to pierce the tube blank with the cross roll first, and then extend it with the rolling mill. This method is fast in production, but requires high machinability of tube blank. It is mainly suitable for producing carbon steel and low alloy steel tube, steel S690QL tube.