F6NM 430 – UNS S41500 – CA-6NM – ASTM A-182 – ASTM A-487 – AFNOR Z6CN13-04 – BS 425C11 – JIS SUSF6NM – SIS 2384 – J91540 – GOST:03X13H4M – Grade QT650 – QT780 – QT900 – Bohler N400
1.4313 – X3CrNiMo13-4, also known as ASTM A-182 F6NM, is a corrosion resistant, martensitic chrome-nickel steel with added molybdenum. It has excellent strength and toughness properties and is commonly used in the petrochemical and gas & generation industry due to it’s corrosion resistance for applications such as flanges, valves, valve bodies, pumps etc. It has limited weldability due to it’s low carbon content.
1.4313 is available in conditions QT650, QT780 and QT900 by altering the quenching & tempering cycle. QT780 is commonly used, the QT650 grade has a lower yield-strength but is softer allowing for even better corrosion resistance, while the QT900 grade has a higher yield-strength but is also harder.
