What is the Difference Between Inconel and Incoloy?

duplex stainless steel

duplex steel also known as duplex 2205 stainless steel is a two-phase, ferritic and austenitic steel with 22% chromium (22cr duplex) 3% molybdenum, 5 to 6% nickel alloyed stainless steel also known as x2crnimon22-5-3 used extensively in applications that require good corrosion resistance & strength. heat treatment of duplex ss 2205 is solution treatment (annealing), between 1020 – 1100°c, followed by rapid cooling. 22 cr duplex stainless steel cannot be hardened by heat treatment. they can however be work hardened.

super duplex stainless steel

super duplex steel also is known as saf 2507 or super duplex 2507 with uns s32750 and uns s32760 (1.4410 / 1.4501 / f53 / f55 / 2507) is a high alloy duplex stainless steel with a pre value of min.40*. super duplex s32750 and super duplex s32760 has 25% chromium (25cr duplex), 4% molybdenum, and 7% nickel also known as x2crnimon25 7 4. this high molybdenum, chromium and nitrogen content causes high resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.

duplex 2205 equivalent

duplex stainless steel equivalent – 1.4462, 22cr duplex, uns s31803 (f51), uns s32205 (f60), alloy 2205, duplex 2205, x2crnimon22-5-3

super duplex 2507 equivalent

super duplex steel equivalent – 25cr duplex, 2507, uns s32750 (f53), uns s32760 (f55), 1.4410, alloy 2507, saf 2507, super duplex s32750, super duplex s32760, x2crnimon25.7.4

applications:  

the excellent yield strength makes it easy to create thinner sections of that offers weight savings. due to this property, duplex stainless steel is used in the pressure vessels and structural applications. this offers excellent stress corrosion cracking resistance that make it suitable for process plants and water tanks. apart from this, duplex stainless steel is used in many industries such as the chemical equipment, heat exchanger, power generation, pharmaceutical and petrochemical etc.

super duplex stainless steel is reliable for diverse industrial sectors such as power plant, chemical industries, heat exchangers, boilers and pressure vessels.