Super austenitic stainless steel tubes super austenitic. Likewise, 302 gave way to the lowercarbon 304, for which the even lowercarbon 304l is commonly substituted and dually certi. With low nickel content and reasonable molybdenum content, super ferritic stainless steels are now proving to be the most cost effective. A typical example is a super austenitic stainless steel containing 6% molybdenum and 7% molybdenum. Superaustenitic stainless steel alloys are characterized by their high nickel and molybdenum contents plus nitrogen. Welding of duplex and super duplex stainless steels duplex and super duplex stainless steels were developed to combine the best properties of austenitic and ferritic steels. While low carbon prevents sensitization, stabilized grades may still be preferred for special applica. They have higher yield strength, 65 ksi 450 n mm2, and higher tensile strength, 100 ksi 69 n mm2, compared to 300 series stainless steels. With its high level of chromium, super duplex steel provides outstanding resistance to acids, acid chlorides, caustic solutions and other environments in the chemicalpetrochemical, pulp and paper industries, often replacing 300 series stainless steel, high nickel super austenitic steels and nickelbased alloys.
However, with world demand growing, prices of these materials have increased dramatically, and lead times can exceed more than one year. Properties of stainless super austenitic pm material made. The austenite stainless steel alloy has been developed further to be super austenitic stainless steel sass by increasing the percentage of the alloying elements to form the half or more than the. Product bulletin high alloy stainless steels september. Superferritic stainless steels the cost effective answer. Superaustenitic steels are amagnetic and present a good weldability and excellent formability. Todays super austenitic prices are more than twice the value of late 2003. These steel grades have been developed for industries with harsh conditions such as petrochemical, chemical, paper and offshore systems. The concept of super austenitic stainless steel comes with super ferritic stainless steel and super duplex stainless steel. Cn3mn j94651 super austenitic stainless steel chemical composition, mechanical properties, and specifications. This paper presents tool wear study when a machinability test was applied using milling on super austenitic stainless steel al6xn alloy. The most common of the alloys are 904l, al6xn, 254 smo, 256mo and 1925 hmo. Its corrosion resistance is higher than the duplex grades because its alloy content is higher. These steels approach the performance of highly corrosion resistant nickel based alloys at a significant lower cost.1408 982 152 181 532 647 770 449 188 427 1165 1284 633 503 696 1325 660 1000 373 183 298 897 221 777 1048 963 404 567 928 1019 1317 603 320 891 699 561 1109 1430 861 1336 836 533 943 1491