Ordnance Factory Muradnagar (आयुध निर्माणी मुरादनगर ) is a unit of the Ordnance Factories Board, under Ministry of Defence, Government of India. OFM is a premium steel casting unit of OFB. It specializes in alloy and steel castings - armoured as well as non-armoured, ammunition hardware, grey iron castings for ammunition hardware and moulds and open die steel forgings for Hot die steel and other tool steel. It supplies castings for aerial bombs, track assembly for T-90 tank, 81mm bomb bodies and general castings required for tanks, 155mm field gun etc. to sister factories.