Typical Analysis in Weight Percent:

              Si                         0.4 - 0.8                      Mn                      0.15

              Fe                        0.7                              Mg                      0.8 - 1.2

              Cu                        0.15 - 0.4                     Cr                     0.04 - 0.35

              Zn                        0.25                             Ti                       0.15

              Other                    0.15

Typical Physical Properties:

Density: .098 lbs/in³ (2.71 g/cc)

Average Coefficient of Thermal Expansion (68 - 212 ^oF): 13.1 x 10^-6/ ^oF

Melting Range (Approximate): 1080 - 1205 ^oF

Temper: T651 - Stress relieved by stretching.

Thermal Conductivity (at 77 ^oF): 1160 btu/in ft² hr ^oF

Electrical Conductivity (at 68 ^oF, % of Int’l Annealed Copper Standard):

              Equal Volume:    43

              Equal Weight:    142

Electrical Resistivity (at 68 ^oF): 24 ohms-cir mil/foot

Typical Mechanical Properties:

Tensile Strength:

           Ultimate:           45 ksi

                Yield:            40 ksi

Elongation (% in 2"):

              1/16" thick specimen:      12

                1/2" thick specimen:      17

Brinell Hardness (500 kg load - 10mm ball): 95

Ultimate Shearing Strength: 30 ksi

Endurance Limit: 14 ksi

Modulus of Elasticity: 10.0 ksi x 10³