We are one of the well-known stainless steel round seamless pipe suppliers. We will provide these after all the experienced and knowledgeable engineers have checked all the quality parameters. 

STAINLESS STEEL PIPE CHEMICAL COMPOSITION

FAQ

What is the heat resistance of stainless steel round seamless pipe?

Heat resistance refers to the ability of stainless steel to maintain its excellent physical and mechanical properties at high temperatures.

Influence of carbon: Carbon is an element that strongly forms and stabilizes austenite and expands the austenite region in austenitic stainless steel. The ability of carbon to form austenite is about 30 times that of nickel. Carbon is an interstitial element and can significantly increase the strength of austenitic stainless steel through solid solution strengthening. Carbon can also improve the stress and corrosion resistance of austenitic stainless steel in high-concentration chloride (such as 42% MgCl2 boiling solution).

However, in austenitic stainless steel, carbon is often regarded as a harmful element. This is mainly due to the fact that under some conditions in the corrosion resistance of stainless steel (such as welding or heating at 450~850℃), carbon can be Chromium forms a high-chromium Cr23C6 type carbon compound, which leads to local chromium depletion, which reduces the corrosion resistance of steel, especially the intergranular corrosion resistance. therefore. Since the 1960s, most of the newly developed chromium-nickel austenitic stainless steels are ultra-low carbon type with a carbon content of less than 0.03% or 0.02%. It can be known that as the carbon content decreases, the intergranular corrosion sensitivity of steel decreases. When the carbon content is lower than 0.02% has the most obvious effect. Some experiments have also pointed out that carbon will increase the pitting corrosion tendency of chromium austenitic stainless steel. Due to the harmful effects of carbon, not only should the carbon content be controlled as low as possible in the austenitic stainless steel smelting process, but also in the subsequent heating, cold working and heat treatment processes, the surface of the stainless steel is also prevented from increasing carbon, and chromium carbides should be avoided. Precipitate out.

Our stainless steel round seamless pipe has good performance and superior quality.

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