ALLOYS ====== Percentage Composition by Mass ------------------------------ Copper Alloys ------------- Name Cu Zn Ni Sn Mn Pb Al AlFeMn Uses --------------------------------------------------------------------------------------------------------- Brass 70 30 0 0 0 0 0 0 Condenser tubes, rifle cartriges Muntz Metal 60 40 0 0 0 0 0 0 Hard brass - Ship`s bottoms Delta Metal 55 40 0 0 0 0 0 5 Ship`s propellors German Silver 50 30 0 0 0 0 0 0 Electroplating base Bronze 92 0 0 8 0 0 0 0 Ball Metal 81-72 0 0 19-28 0 0 0 0 Elastic & sonorous if slow cooled Speculum Metal 60 0 0 33 0 0 0 0 Telescopes & reflectors Phosphor Bronze 93 0 0 6 0 1 0 0 Bearings Gunmetal 85 10 0 5 0 0 0 0 Statuary Bronze 90 4 0 5 0 1 0 0 Aluminium Bronze 90 0 0 0 0 0 10 0 Resistant to atmospheric corrosion Monel Metal 70 0 30 0 0 0 0 0 Turbine blades, chem. apperatus Constantan 60 0 40 0 0 0 0 0 Resistance wire Manganin 84 0 4 0 12 0 0 0 Resistance wire Steels ------ Name Fe C Ni Cr Mn W Uses --------------------------------------------------------------------------------------------------------- 97 1 0 2 0 0 Ball bearings, armour plate Stainless Steel 88-85 1 0 12-15 0 0 Cutlery "Staybrite" 73 1 8 18 0 0 Withstands brine High Speed Tool Hard, even at red heat 90-86 1 0 0 9-14 0 Crushers, "tin" hats Platinite Same rate of thermal expansion as glass Invar 63.7 0.3 36 0 0 0 Neg. coefficiant of expansion at room temp. Cobalt Alloys ------------- Name Co Mo Cr W Uses --------------------------------------------------------------------------------------------------------- Stellite 55 5 15 25 Surgical instruments Nickel Alloys ------------- Name Ni Cr Uses --------------------------------------------------------------------------------------------------------- Nichrome 60 40 Resistive furnace elements Lead Alloys ----------- Name Pb Sn Sb As Te Uses --------------------------------------------------------------------------------------------------------- Hard Lead 85 0 15 0 0 Accumulators & corrosives pumps Type Metal 80 5 15 0 0 Printing plates (MP=240centigrade) Old Pewter 20 80 0 0 0 (Modern Pewter) 0 92.5 7.5 0 0 Common Solder 66 34 0 0 0 Soldering Shot Lead Lead shot Pipe Lead 99 0 0 0 1 Old lead pipes Stannic Alloys -------------- Name Sn Cu Sb Uses --------------------------------------------------------------------------------------------------------- Bearing Metal 90 5 5 Aluminium Alloys ---------------- Name Al Cu Mn Mg Uses --------------------------------------------------------------------------------------------------------- Duralumin 95 4 0.5 0.5 Zeppelin ribs Magnalumin 90 10 0 0 Aircraft (spec. grav.=2) Aluminium Bronze 10 90 0 0 Resistant to atmospheric corrosion Magnesium Alloys ---------------- Name Mg Cu Zn Uses --------------------------------------------------------------------------------------------------------- Electron 95 0.5 4.5 (spec. grav.=1.8) As usual, no guarentees are made as to the accuracy or obsolescence of this information. Use at your own risk.