Iron can be found in a multitude of forms and sources. The primary forms of iron today are Hematite and Magnetite. While iron can be found throughout the world, only the deposits in the order of millions of tonnes are processed for industrial purposes. Iron can be found in a multitude of forms and sources. The primary forms of iron today are Hematite and Magnetite. While iron can be found throughout the world, only the deposits in the order of millions of tonnes are processed for industrial purposes. In today’s rapidly evolving construction industry, the materials we choose can significantly impact both the performance and longevity of a project. OUR COMPANYLeading in Production the iron&steel is a leading manufacturer, distributor and exporter of steel tube and we offers a wide range of quality materials, surface finishes and metric sizes. We are a professional supplier for the chemical manufacturing, manufacturing, mining, refinery, public services, transportation, and other industries. We offer and export a range of carbon steel pipes and according with and other national and international standards. alloy steel tube is used in heating surface pipe with low and medium pressure boilers (operating pressure is generally not greater than 5.88mpa and operating temperature is below 450℃. The addition of Nickel and Chromium makes steel tube with high mechanical performance and corrosion resistance, which is used for heating surface pipes, coal economizers, superheaters, reheaters and so on in high pressure boilers (working pressure is generally above 9.8Mpa and working temperature is between 450℃ and 650℃.