Beryllium Copper Alloy C17200

  • Beryllium Copper Alloy C17200

  • General Characteristics

    C17200 is manufactured to provide a combination of high strength and hardness properties coupled with superior thermal properties. This range of properties makes C17200 the premier material for copper alloy molds and a wide range of other applications from oil and gas to aerospace.

  • Typical Chemical Composition

    Weight % Be Ni+Co Ni+Co+Fe Pb Cu Other
    minimum 1.80 0.20 — — Bal —
    maximum 2.00 — 0.60 0.10 0.5

  • Physical Properties

    Characteristics English Metric
    Nominal density

    (68°F/20°C)

    		 0.298 lbs/in3 8.25 g/cm3
    Specific heat

    (212 °F/100°C)

    		 0.10 BTU/lb – °F 420 J/KG- °K
    Melting range 1590-1800 °F 865-980 °C
    Coefficient of thermal

    expansion

    		 68°F – 212°F

    20°C – 100°C

    		 9.3 micro in/in- °F 16.7 micro m/m- °K
    68°F – 392°F

    20°C – 200°C

    		 9.4 micro in/in- °F 17.0 micro m/m- °K
    68°F – 572°F

    20°C – 300°C

    		 9.9 micro in/in- °F 17.8 micro m/m- °K
    Thermal conductivity 20°C   /   68°F 60-75 BTU/ft- hr – °F 105-130 W/m – °K
    200°C / 392°F 75-77 BTU/ft- hr – °F 130-133 W/m – °K
    Electrical resistivity 20°C   /   68°F 57-115 nΩ ∙ m
    Electrical conductivity Volumetric:

    20°C   /   68°F

    		 15-30% IACS

  • Mechanical Properties

    Temper Tensile Electrical Conductivity
    Ultimate Yield Elongation

    in 50 mm

    (2 in.)

    		 %IACS
    KSI MPa KSI MPa % %IACS
    TB00 – Solution Heat Treated All Sizes 57-

    78

    		 400-

    540

    		 20-

    35

    		 140-

    240

    		 35-55 17-19
    TD04 – Solution Heat Treated and

    Cold Worked: Hard (H)

    		 <2 mm

    (0.08 in.)

    		 130-

    155

    		 895-

    1070

    		 110-

    135

    		 760-

    930

    		 2-8 15-17
    2-9.5 mm

    (0.08-0.38 in.)

    		 95-

    130

    		 655-

    900

    		 75-

    105

    		 515-

    725

    		 10-35 15-17
    >9.5 mm

    (0.38 in.)

    		 90-

    120

    		 620-

    825

    		 75-

    105

    		 515-

    725

    		 10-35 15-17
    TF00 – Precipitation Hardened (AT)

    Aged 3 h at 330 °C

    		 All Sizes 165-

    190

    		 1140-1310 145-

    175

    		 1000-

    1210

    		 3-8 22-25
    TH04 – Hard and Precipitation

    Heat Treated (HT)

    Aged 1 h at 330 °C

    		 <2 mm

    (0.08 in.)

    		 190-

    230

    		 1310-1590 180-

    205

    		 1240-

    1410

    		 1-3 22-25
    TH04 – Hard and Precipitation

    Heat Treated (HT)

    Aged 1.5 to 3 h at 330 °C

    		 2-9.5 mm

    (0.08-0.38 in.)

    		 185-

    215

    		 1280-1480 175-

    200

    		 1210-

    1380

    		 2-5 22-25
    >9.5 mm

    (0.38 in.)

    		 180-

    210

    		 1240-1450 165-

    200

    		 1140-

    1380

    		 2-5 22-25

  • Specifications

    • AMS – 4725, QQ-C-533
    • ASTM – B197
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