Origin of Metals in Lubricants
Element | Abbr. | Possible Origin |
Aluminium | Al | pistons, bearings, dirt, lubricating grease |
Barium | Ba | additives, lubricating grease, water |
Boron | B | cooling fluid, additives, sea water |
Calcium | Ca | additives, lubricating grease, water |
Chromium | Cr | cylinder, rings, crank shaft, gear box |
Iron | Fe | cylinder, crank shaft, gear box, rust, water |
Potassium | K | cooling fluid, additives |
Copper | Cu | bearings, radiator, bronze |
Lithium | Li | lubricating grease |
Magnesium | Mg | bearings, additives, sea water |
Molybdenum | Mo | rings, additives |
Sodium | Na | additives, cooling fluids, sea water, lubricating grease |
Nickel | Ni | axle, gear box, rings, turbine alloy |
Phosphorus | P | additives, cooling fluid, gear box |
Silver | Ag | bearings |
Silicon | Si | dirt, anti-foaming agent, synthetic oils |
Titanium | Ti | springs, valves, turbine alloy, dust |
Zinc | Zn | bearings, additives, coatings |
Stannous | Sn | bearings, soldering agent, radiator |
