25 Mn Manganese. See more Manganese products. Manganese (atomic symbol: Mn, atomic number: 25) is a Block D, Group 7, Period 4 element with an atomic weight of 54.938045. The number of electrons in each of Manganese's shells is [2, 8, 13, 2] and its electron configuration is [Ar] 3d 5 4s 2.is a distributor ouding rings, circles, bushings, bearings, castings, & machined products & copper-based alloys from stock in the form of bars, plates, rods & tubes. ... Copper Nickel C706, C715 to/4" diameter Nickel Copper N04400, N05500 Monel 400/K500 EQUIV Beryllium Copper C172 ...Manganese Bronzes. These alloys are carefullypounded yellow brasses with measured quantities of iron, manganese, and aluminum. The metal should be melted and heated to the flare temperatoxide vapor can be detected. ... Copper-Nickel Alloys. These alloys (90Cu-10Ni, UNS C96200 and 70Cu-30Ni, UNS C96400) must ...An alloy containing a minimum of 12% chromium sometimes with nickel, manganese or molybdenum as additional alloying element. Stainless steel Any of group of low carbon steels containing less than 2% allow in a chemicalpositieased strength, ductility and resistance to corrosion .