High strength S690QL alloy sheet steel coil

Gas cylinder steel plate is used to manufacture the material which can be used repeatedly to manufacture liquefied petroleum gas cylinders with working temperature of 40-60 ℃, S690QL alloy sheet test pressure of 2.36 MPa, water volume of 23.5L, 35.5L, 118L.

We are world class steel S690QL alloy sheet materials supplier. We are engaed in providing raw steel materials such as steel plates / steel coils / steel sheets / steel pipes, deep processing and a series project design and solutions to clients. We guarantee to return goods for free for S690QL alloy sheet quality problem during its lifetime. Your satisfactory is our permanent pursue. We always welcome advise from clients to make self-improvement continously. And sincerely to build long-term cooperation with you.

Normalizing is to heat the steel parts to 30~80℃above the critical temperature for a period of time. Then the parts are taken out of the furnace and cooled in air. Since the cooling rate of normalizing is faster than that of annealing, the strength and hardness of normalized S690QL alloy sheet are higher than that of annealed S690QL alloy sheet, but the elimination of internal stress is not as good as annealing. The normalizing operation of S690QL alloy sheet is simple, the cost is low, the productivity is high, and it is widely used in actual production.

S690QL alloy sheet, Stainless steel relies on a very thin, solid, fine and stable chromium rich oxide film (protective film) formed on its surface to prevent oxygen atoms from continuing to infiltrate and oxidize, so as to obtain the ability of corrosion resistance. Once the film is damaged for some reason, the oxygen atoms in the air or liquid will continuously penetrate or the iron atoms in the metal will continuously separate, forming loose iron oxide, and the metal surface will be continuously rusted.

The company formulates clear service process and service standard. To do a good job in after-sales service, first of all, clear service process and service standards should be formulated to let employees know which procedures to perform and which service standards to abide by.

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