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