Aluminum Alloy 2219

  • Aluminum Alloy 2219

  • General Characteristics

    The 2219 alloy is used in aerospace applications such as space booster and fuel tanks. The alloy is weldable and resistant to stress corrosion cracking . Its useful temperature range is -452° to 600°F. The alloy also has good fracture toughness.

  • Typical Chemical Composition

    Others
    Weight % Si Fe Cu Mn Mg Zn Ti V Zr Each Total Aluminium
    Minimum — — 5.8 0.2 — — 0.02 0.05 0.10 — — Remainder
    Maximum 0.20 0.30 6.8 0.4 0.02 0.25 0.10 0.15 0.25 0.05 0.15

  • Physical Properties

    Characteristics English Metric
    Nominal density

    (68°F/20°C)

    		 0.103 lbs/in3 2.84 mg/m3
    Melting range 1010°F-1190°F 543°C-643°C
    Specific heat

    (212 °F/100°C)

    		 0.206 BTU/lb – °F 864 J/KG- °K
    Coefficient of thermal expansion Linear

    68°F – 212°F

    20°C – 100°C

    		 12.5 micro in/in- °F 22.5 micro in/in- °K
    Volumetric

    68 ºF / 20 ºC

    		 3.62 x 10– 5 in .3/in.3 – ºF 65 x 10-6 m3/m3 – ºK
    T3, T3551 67 BTU/ft- hr – °F 116 W/m – °K
    T8, T851, T8511 75 BTU/ft- hr – °F 130 W/m – °K
    Electrical conductivity

    (68°F/20°C)

    		 Equal Volume T3, T3551 28% IACS
    T8, T851, T8511 30% IACS

  • Mechanical Properties

    Temper Tensile (.500” Dia. Speciman) Hardness Shear Fatigue Modulus
    Ultimate Yield Elongation/ 4D Brinell 500 kg 10 mm Ultimate shearing strength Endurance limit-R.R.Moore type Modulus of elasticity
    KSI MPa KSI MPa KSI MPa KSI MPa KSIx103 Gpa
    T-351 42.1 290 26.1 180 14 100 33.4 230 — — 10.6 73.1
    T-851 58 400 42.1 290 6 130 41.3 285 15 103 10.6 73.1
    T-37 57 393 46 317 11 117 37 255 — — 10.6 73.1
    T-87 69 476 57 393 10 130 40.6 280 15 103 10.6 73.1

  • Specifications

    • ASTM – B210, B221, B241
    • AMS – 4066, 4143, 4144, 4162, 4163
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