News
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Surface depression of continous casting slab or billet
Continuous cast slab or billet surface shows irregular pits, which are mostly lateral pits, as well as vertical pits. Depression and more in austenitic stainless steel (Cr18Ni9 type) and a low-carbon steel (carbon 0.10 to 0.15%) of the slab surface. Depression is easy to produce in the lateral su...Read more -
Spiral steel pipe temperature control and installation process
Spiral steel pipe temperature control Spiral steel pipe welding temperature is mainly affected by the high-frequency eddy thermal power, high-frequency eddy current heating power is mainly affected by the frequency, power and thermal eddy current excitation frequency is proportional to the square...Read more -
Seamless steel pipe piercing
Piercing is the first step of hot-rolled seamless steel pipe deformation, and its role is to solid hollow tube billet dressed as capillary. Due to wear a capillary surface defects or eccentric (uneven thickness) is difficult to eliminate or reduce the deformation process, therefore, the quality o...Read more -
How to Protect the Surface of the Welded Steel Pipe
There are various kinds of steel pipes both in domestic and international markets for your selection, like the welded steel pipe. The steel pipe can be used as the long-distance oil and gas pipeline actually which can ensure the energy security actually. However, the surface of the stee pipe shou...Read more -
China Mild steel pipe &Tubing
Mild steel contains carbon alloy of 0.16 to 0.29% and is therefore not ductile. The mild steel pipes are coated with copper and thus resist corrosion however, extra care has to be taken to keep away from rusting. The hardness of the mild steel could be increased through carburizing in which the s...Read more -
Alloy steel pipe
Alloy tube (Alloy pipe) is a kind of seamless steel pipe, its performance is much higher than the general seamless steel pipe, because this steel pipe inside containing Cr, high temperature resistance, low temperature, corrosion-resistant performance of other non-pipe joints not match, so the mor...Read more