LEAD |
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TECHNICAL FEATURES |
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Found as Bars, Plates and Ingots. |
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Blae colored. Low hardness. Soft lead takes all kinds of form easily. |
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PHYSICAL FEATURES |
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COMPOSITION % |
Pb:99.9 |
SPECIFIC WEIGHT (Kg/dm³) |
11,35 |
FUSION TEMPERATURE (˚C) |
326 |
HEAT CONDUCTIVITY AT 25˚C AS ANNEALED (Kcal/Hr/Cm/˚C) |
29.2 |
COEFFICIENT OF EXPANSION (20-200 ˚C)(˚C) X 10-6 |
29,5 |
HEATING TEMPERATURE (20 ˚C),(Kcal/Kg/˚C) |
0.031 |
MECHANIC FEATURES |
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ELASTIC MODULE IN STRESS (Kg/cm²)x10³ |
140 |
TENSILE STRENGTH AT 24˚C (Kg/cm²) |
|
170 |
|
YIELDING STRENGTH AT 24˚C (Kg/cm²) |
|
115 |
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STRETCHING (5 cm) % |
|
57 |
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STRENGTH LIMIT (10 HZ) (Kg/cm²) |
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50 |
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SLIDING STRENGTH (0,1% EVERY YEAR) (Kg/cm²) |
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21 |
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PROCESSING FEAUTRES |
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CASTING TEMPERATURE (˚C) |
420-455 |
CORROSION FEATURES |
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In open air, resistant to fresh and salty water, sulphuric, sulfurous, phosphoric and chromic acids. Affected by acetic formic and nitric acids. |
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AVAILABILITY |
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Ingot, bar, pipe, marble, plate. |
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AREAS OF USE |
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Chemical devices, accumulators, cable armor, cartridge bullet, alloying, coating, fluid bath for heat treatment, jagging. |