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High Molybdenum Stainless Steel Chemical Composition, Grade Chart, Tables and Documents

High molybdenum-containing stainless steel alloys are known for their high resistance to corrosion, which makes them perfect for most applications that demand such properties in diverse conditions. Usually these alloys have 6-7% molybdenum and this thing improves their anticorrosion properties in a pretty impressive way in comparison with common stainless steels. Moreover, molybdenum may not be the only constituent, it can take elements as chromium, nickel, and nitrogen as well, to gain even more high mechanical properties and do a great work against any kind of harmful agents. There are several grades, one of which is 316, 316L, and 317 stainless steel of the Austenitic made stainless steel. Detailed chemical composition charts, grade comparisons, and technical documents are an integral part of the tool kit of engineers and manufacturers when it comes to selecting a high molybdenum steel grade that matches the specific requirements of the project perfectly.

High Molybdenum Stainless Steel Chemical Composition Table

High molybdenum stainless steel has been gaining popularity in chemical processing, oil and gas, marine applications, and challenging environment due to its admirable rust resistance and mechnical structures. It is generally regarded as the most versatile and advanced design, having a rather multi-component composition comprising chromium, nickel, and elevated amount of molybdenum, which make its pitting and crevice corrosion resistance higher. Such a milleoy's rare combination offers superior corrosion resistance to the harsh chemicals, acids and chlorine-based environments which enable the long-term and faultless application in critical industrial fields. Consultation with manufacturers is recommended to be accurate on products composition while specific datasheets can as well be consulted.

High Molybdenum Stainless Steel Composition Table
Element Percentage Range ASTM Standard Range
Carbon (C) 0.03% max -
Chromium (Cr) 21.0 - 26.0% 21.0 - 26.0%
Nickel (Ni) 4.5 - 6.5% 4.5 - 6.5%
Molybdenum (Mo) 2.5 - 3.5% 2.0 - 3.0%
Manganese (Mn) 2.0% max -
Silicon (Si) 1.0% max -
Phosphorus (P) 0.03% max -
Sulfur (S) 0.02% max -
Nitrogen (N) 0.08 - 0.2% 0.14 - 0.20%
Copper (Cu) 0.5 - 1.0% -
Iron (Fe) Balance Balance

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