Beryllium Copper Alloy C17300

  • Beryllium Copper Alloy C17300

  • General Characteristics

    C17300 Combines superior machinability with the good fabrication characteristics of C17200. This alloy is manufactured to provide a combination of high strength and hardness properties coupled with superior thermal properties. This range of properties makes C17300 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 — 0.20 Bal —
    maximum 2.00 — 0.60 0.60 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
    Ultimate Yield Elongation in

    50 mm (2 in.)
    KSI MPa KSI MPa %
    TB00 – Solution Heat Treated 60-78 415-

    540

    		 28-55 195-

    380

    		 35-60
    TD01 – Solution Heat Treated and

    Cold Worked: 1⁄4 Hard

    		 75-88 515-

    605

    		 60-88 415-

    605

    		 10-36
    TD02 – Solution Heat Treated and

    Cold Worked: 1⁄2 Hard

    		 85-100 585-

    690

    		 75-95 515-

    655

    		 5-25
    TD04 – Solution Heat Treated and

    Cold Worked: Hard (H)

    		 100-120 690-

    825

    		 90-

    112

    		 620-

    770

    		 2-8
    TF00 – Precipitation Hardened (AT)

    Aged 3 h at 330 °C

    		 165-190 1140-

    1310

    		 140-

    175

    		 965-

    1205

    		 4-10
    TH01 – 1⁄4 Hard and Precipitation

    Heat Treated Cold rolled and aged 2 h at 315 °C

    		 175-200 1205-

    1380

    		 150-

    185

    		 1035-

    1275

    		 3-6
    TH02 – 1⁄2 Hard and Precipitation

    Heat Treated Cold rolled and aged 2 h at 315 °C

    		 185-210 1275-

    1450

    		 160-

    195

    		 1105-

    1345

    		 2-5
    TH04 – Hard and Precipitation

    Heat Treated (HT) Aged 1 h at 330 °C

    Cold rolled and aged 2 h at 315 °C

    		 190-215 1310-

    1480

    		 165-

    205

    		 1140-

    1415

    		 1-4
    TM00 – AM Mill treated 100-110 690-

    760

    		 75-

    90

    		 515-

    620

    		 18-23
    TM01 – 1/4 HM 110-120 760-

    825

    		 90-

    110

    		 620-

    760

    		 15-20
    TM02 – 1/2 HM 120-135 825-

    930

    		 100-

    125

    		 690-

    860

    		 12-18
    TM04 – 3/4 HM 135-150 930-

    1035

    		 115-

    135

    		 795-

    930

    		 9-15
    TM06 – XHM 160-175 1105-

    1205

    		 145-

    170

    		 1000-

    1170

    		 4-10

  • Specifications

    • AMS – 4530, 4532, QQ-C-533
    • ASTM – B194
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