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6063-T4
T4 temper 6063 has an ultimate tensile strength of at least 19,000 psi (131 MPa) in thicknesses up to 0.5-inch (13 mm), and 18,000 psi (124 MPa) from 0.5 to 1.0-
inch (25 mm) thick, and yield strength of at least 10,000 psi (69 MPa) up to 0.5-inch (13 mm) and 9,000 psi (62 MPa) from 0.5 to 1.0-inch (25 mm). It has
elongation of 14%.




6063-T5
T5 temper 6063 has an ultimate tensile strength of at least 22,000 psi (152 MPa) in thicknesses up to 0.5-inch (13 mm), and 21,000 psi (145 MPa) from 0.5 to 1.0-
inch (25 mm) thick, and yield strength of at least 16,000 psi (110 MPa) up to 0.5-inch (13 mm) and 15,000 psi (103 MPa) (from 0.5 to 1.0-inch (25 mm). It has
elongation of 8%.

Chemical composition
The alloy composition of 6063 is: [1]


            Silicon minimum 0.2%, maximum 0.6% by weight

            Iron no minimum, maximum 0.35%


            Copper no minimum, maximum 0.10%


            Manganese no minimum, maximum 0.10%


            Magnesium minimum 0.45%, maximum 0.9%


            Chromium no minimum, maximum 0.10%


            Zinc no minimum, maximum 0.10%


            Titanium no minimum, maximum 0.10%


            Other elements no more than 0.05% each, 0.15% total


            Remainder Aluminium




As per AWS D1.2/D1.2M:2003 page no. 22 Table 3.2 shows

6063-T4,T5,T52,T6,T62,T83,T831,T832 all extruded material having same material number i.e.23 up to
25mm Thickness their weld strength can be check up to 115MPA. Also IS733 manual at page no. 14 & 15
you can able to find 63400,64423,64430 grade is equivalent as per their available forms & typical uses.

Its might be equivalent to each other .



Manish C.Samson

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6063specification

  • 1. 6063-T4 T4 temper 6063 has an ultimate tensile strength of at least 19,000 psi (131 MPa) in thicknesses up to 0.5-inch (13 mm), and 18,000 psi (124 MPa) from 0.5 to 1.0- inch (25 mm) thick, and yield strength of at least 10,000 psi (69 MPa) up to 0.5-inch (13 mm) and 9,000 psi (62 MPa) from 0.5 to 1.0-inch (25 mm). It has elongation of 14%. 6063-T5 T5 temper 6063 has an ultimate tensile strength of at least 22,000 psi (152 MPa) in thicknesses up to 0.5-inch (13 mm), and 21,000 psi (145 MPa) from 0.5 to 1.0- inch (25 mm) thick, and yield strength of at least 16,000 psi (110 MPa) up to 0.5-inch (13 mm) and 15,000 psi (103 MPa) (from 0.5 to 1.0-inch (25 mm). It has elongation of 8%. Chemical composition The alloy composition of 6063 is: [1] Silicon minimum 0.2%, maximum 0.6% by weight Iron no minimum, maximum 0.35% Copper no minimum, maximum 0.10% Manganese no minimum, maximum 0.10% Magnesium minimum 0.45%, maximum 0.9% Chromium no minimum, maximum 0.10% Zinc no minimum, maximum 0.10% Titanium no minimum, maximum 0.10% Other elements no more than 0.05% each, 0.15% total Remainder Aluminium As per AWS D1.2/D1.2M:2003 page no. 22 Table 3.2 shows 6063-T4,T5,T52,T6,T62,T83,T831,T832 all extruded material having same material number i.e.23 up to 25mm Thickness their weld strength can be check up to 115MPA. Also IS733 manual at page no. 14 & 15 you can able to find 63400,64423,64430 grade is equivalent as per their available forms & typical uses. Its might be equivalent to each other . Manish C.Samson