Ferritic Stainless Steel Seamless Pipe and Tube is a kind of seamless pipe that we have common and widely used, so what kind of performance does it have?

The pure ferrite structure has good plasticity and toughness, but the strength and hardness are very low; cold work hardening is slow, and it can withstand large reduction rates, but the tensile strength of the finished steel wire is difficult to exceed 1200MPa. Due to the low carbon content of ferrite, its performance is similar to that of pure iron, with good plasticity and toughness, and elongation δ=45%-50%. The strength and hardness are low, σb≈250MPa, and HBS=80.

Pure iron has a body-centered cubic lattice below 912°C. The interstitial solid solution in which carbon is dissolved in α-Fe is called ferrite, which is represented by the symbol F. Since α-Fe has a body-centered cubic lattice structure, its lattice gap is very small, so the ability to dissolve carbon is extremely poor. The maximum amount of carbon dissolved at 727°C, up to 0.0218%, and the amount of dissolved carbon gradually decreases with the temperature Decrease, the amount of dissolved carbon at 600℃ is about 0.0057%, and the amount of dissolved carbon at room temperature is about 0.0008%. Therefore, its performance is almost the same as that of pure iron.

Similarly, the performance of Austenitic Stainless Steel Seamless Tube is also very good.