Introduction to Basic Manufacturing Processes and ... - always yours

82 Introduction to Basic Manufacturing Processes and Workshop Technology
5.3.1.5 Naval Brass
Navel brass is commonly used for making marine components. It contains
Cu = 59%
Zn = 40%
Sn = 1%
Properties
Properties of naval brass are similar to muntz metal. As 1% zinc is replaced by 1% tin
in Muntz metal to make navel brass, corrosion resistance of this material to sea water is
significantly improved. The percentage elongation of navel brass is 47% and its tensile strength
is 38 kg/mm 2 (approx.).
Applications
Navel brass is commonly utilized for making marine hardware casting, piston rods,
propeller shafts, welding rods etc.
5.3.1.6 Manganese Brass
Manganese brass is sometimes also called manganese bronze. It contains
Cu = 60%
Zn = 38%
Mn = 0.5%
Fe = 1.0%
Sn = 0.5%
Properties
Manganese brass possesses sufficient toughness and good corrosion resistance. It is very
active in reducing the oxides of other metals.
Applications
Manganese brass is utilized for making hydraulic rams, valves and cylinders, tubes,
pump rods, propellers, bolts, nuts etc.
5.3.1.7 Iron Brass or Delta Metal
Iron brass or delta brass contains
Cu = 60%
Zn = 37%
Fe = 3%
Iron brass or delta metal is hard, strong, tough, and having good corrosion resistance.
It can be casted easily.
Applications
If corrosion is to be resisted in mild steel, then some amount of iron brass or delta metal
is added in mild steel.