Temper Designation Table
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Temper Designation Table
PHYSICAL PROPERTIES OF ALUMINIUM: | |||||
Specific Gravity - 2.70 | |||||
Electrical Conductivity - 53 to 62% IACS | |||||
Co-efficient of linear expansion - 22 x 10-6 mm/mm/°c | |||||
Thermal conductivty (at 20° c) - 0.53 Cal/Sq.cm/sec./cm/° C | |||||
Electrical Resistivity (at 20° C) - 2.850 micro - ohm (for EC-O) | |||||
Modulus of Elasticity - 7 X 105 Kg/cm² | |||||
TEMPER DESIGNATION TABLE: | |||||
INDIA OR U.K. | U.S.A. OR CANADA | ISO TEMPER | DESCRIPTION OF DESIGNATION. | ||
---|---|---|---|---|---|
O | O | O | ANNEALED | ||
M | F | F | AS FABRICATED, AS MANUFACTURED OR AS CAST | ||
- | T3 | TD | SOLUTION HEAT - TREATED, AND COLD WORKED | ||
W | T4 | TB | SOLUTION HEAT - TREATED, NATURALLY AGED AND | ||
AMENABLE TO ARTIFICIAL AGEING | |||||
P | T5 | TE | ARTIFICALLY AGED OR PRECIPITATION HEAT - TERATED | ||
WP | T6 | TF | SOLUTION HEAT - TREATED & PRECIPITATION HEAT - TREATED | ||
- | H-21 | H-1 | H2A | H1 | STRAIN HARDENED TO SPECIFIED STRENGHT |
- | H-22 | H-32 | H2B | H3B | 1/4 HARD STABILIZED |
- | H-24 | H-34 | H2D | H3D | 1/2 HARD STABILIZED |
- | H-26 | H-36 | H2F | H3F | 3/4 HARD STABILIZED |
- | H-28 | H-38 | H2H | H3H | FULLY HARD, STABILIZED |