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Now In: Wrought Alloys → C17200 Beryllium Copper
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    C17200 Beryllium Copper 
    ASTM B196, AMS 4533, RWMA CLASS IV

    Most commonly utilized beryllium copper alloy and is notable for exhibiting the highest strength and hardness compared to commercial copper alloys. Its strength and hardness is similar to that of steel. C17200 ultimate tensile and Rockwell hardness properties in a peak aged condition are in the 200 ksi range and RC 45 respectively (electrical conductivity 22% IACS minimum).

    TYPICAL USES FOR C17200 BERYLLIUM COPPER

    • ELECTRICAL: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay Parts, Connectors, Spring Connectors, Current Carrying, Contact Bridges, Belleville Washers, Navigational Instruments, Clips
    • FASTENERS: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts
    • INDUSTRIAL: Pumps, Springs, Electrochemical, Shafts, Non Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Wear Plates on Heavy Equipment, Bellows
    • ORDINANCE: Firing Pins
    • OTHER: Tools

     Click Here to Download C17200 SPEC SHEET


    <<< SEE SIZES & SPECS BELOW >>



      
    CHEMICAL COMPOSITION


    		 Al Be Co Cu Si
    Min/Max 0.2 1.8 - 2.0 0.20 min Rem 0.2
    Nominals - 1.9000 - 98.1000 -
    TEMPER

    Product Type Temper Type
    Bar AMS 4650, 4651, 4533, ASTM B194, B196, MILITARY MIL-C-21657, SAE J463, J461
    Extrusions ASTM B570
    Forgings AMS 4650, ASTM B570
    Plate ASTM B194
    Rod AMS 4650, 4534, 4533, 4651, ASTM B196, MILITARY MIL-C-21657, SAE J463, J461
    Rod, Forging AMS 4650
    Sheet ASTM B194
    Strip ASTM B194, SAE J463, J461
    Tube, Seamless AMS 4535, ASTM B643
    Wire AMS 4725, ASTM B197, SAE J463, J461
    MECHANICAL PROPERTIES

    Temper Sect. Size Cold Work Type Min Temp Tensile Strength YS
    0.05% UL     		YS
    0.02% Offset     		YS
    0.005% Offset     		Elong. RH
    B     		RH
    C     		RH
    F     		RH
    30T     		VH
    500     		BH
    500     		BH
    3000     		Shear
    Strgth     		Fatigue
    Strgth     		Izod
    Impact
    Strgth
    - in. % - F ksi ksi ksi ksi % B C F 30T 500 500 3000 ksi ksi ft-lb
    - mm. - - C MPa MPa MPa MPa - - - - - - - - MPa MPa J
    FLAT PRODUCTS
    TM05 0 68 149 - 125 - - - - - - - - - - -
    TM05 0 0 MIN 20 1030 - 860 - 9 - 31 - - - - - - - 0
    TM08 0.19 68 182 - 160 - - - - - - - - - - -
    TM08 4.78 0 TYP 20 1255 - 1103 - 6 - - - - - - - - - 0
    TD02 0.19 68 92 - 82 - - - - - - - - - - -
    TD02 4.78 0 TYP 20 634 - 565 - 15 92 - - 77 - - - - - 0
    TF00 0.19 68 175 - 155 - - - - - - - - - - 36
    TF00 4.78 0 TYP 20 1207 - 1069 - 6 - 38 - - - - - - 248 0
    TM06 0.19 68 168 - 148 - - - - - - - - - - -
    TM06 4.75 0 TYP 20 1158 - 1020 - 7 - 37 - - - - - - - 0
    TH04 0.19 68 200 - 180 - - - - - - - - - - 45
    TH04 4.78 0 TYP 20 1379 - 1241 - 2 - 42 - - - - - - 307 0
    TM02 0.19 68 128 - 105 - - - - - - - - - - -
    TM02 4.78 0 TYP 20 883 - 724 - 15 - 27 - - - - - - - 0
    TM00 0.19 68 105 - 82 - - - - - - - - - - -
    TM00 4.78 0 TYP 20 724 - 565 - 20 - 27 - - - - - - - 0
    TB00 0 68 70 - 32 - - - - - - - - - - -
    TB00 0 0 TYP 20 483 - 221 - 45 60 - - 58 - - - - - 0
    TH02 0.19 68 195 - 175 - - - - - - - - - - 44
    TH02 4.78 0 TYP 20 1344 - 1207 - 3 - 41 - - - - - - 303 0
    TM04 0.19 68 142 - 122 - - - - - - - - - - -
    TM04 4.78 0 TYP 20 979 - 841 - 12 - 32 - - - - - - - 0
    TD04 0.19 68 110 - 104 - - - - - - - - - - -
    TD04 4.78 0 TYP 20 756 - 717 - 5 99 - 81 - - - - - - 0
    TM01 0.19 68 115 - 89 - - - - - - - - - - -
    TM01 4.78 0 TYP 20 793 - 614 - 17 - 23 - - - - - - - 0
    TH01 0.19 68 185 - 165 - - - - - - - - - - 40
    TH01 4.78 0 TYP 20 1276 - 1138 - 4 - 40 - - - - - - 276 0
    TD01 0.19 68 80 - 70 - - - - - - - - - - -
    TD01 4.78 0 TYP 20 552 - 483 - 25 80 - - 70 - - - - - 0
    ROD
    TB00 0 68 72 - 20 - - - - - - - - - - -
    TB00 0 0 TYP 20 496 - 138 - 20 65 - - - - - - - - 0
    TD04 3 68 103 - 75 - - - - - - - - - - -
    TD04 76.2 0 TYP 20 710 - 517 - 8 94 - - - - - - - - 0
    TF00 3 68 182 - 130 - - - - - - - - - - -
    TF00 76.2 0 TYP 20 1255 - 896 - 3 - 39 - - - - - - - 0
    TH04 0.38 68 405 - 315 - - - - - - - - - - -
    TH04 9.53 0 TYP 20 2792 - 2172 - 4 - 83 - - - - - - - 0
    TD04 0.38 68 110 - 75 - - - - - - - - - - -
    TD04 9.53 0 TYP 20 758 - 517 - 8 95 - - - - - - - - 0
    TD04 1 68 108 - 75 - - - - - - - - - - -
    TD04 25.4 0 TYP 20 745 - 517 - 8 95 - - - - - - - - 0
    TF00 0 68 182 - 145 - - - - - - - - - - -
    TF00 0 0 TYP 20 1255 - 1000 - 4 - 39 - - - - - - - 0
    TH04 3 68 195 - 145 - - - - - - - - - - -
    TH04 76.2 0 TYP 20 1344 - 1000 - 4 - 41 - - - - - - - 0
    WIRE
    TF00 0 68 178 - 160 - - - - - - - - - - -
    TF00 0 0 TYP 20 1227 - 1103 - 3 - - - - - - - - - 0
    TD04 0 68 152 - 125 - - - - - - - - - - -
    TD04 0 0 TYP 20 1048 - 862 - 1 - - - - - - - - - 0
    TD02 0 68 122 - 100 - - - - - - - - - - -
    TD02 0 0 TYP 20 841 - 689 - 5 - - - - - - - - - 0
    TH03 0 68 210 - 190 - - - - - - - - - - -
    TH03 0 0 TYP 20 1448 - 1310 - 1 - - - - - - - - - 0
    TH04 0 68 212 - 195 - - - - - - - - - - -
    TH04 0 0 TYP 20 1462 - 1344 - 1 - - - - - - - - - 0
    TH02 0 68 200 - 185 - - - - - - - - - - -
    TH02 0 0 TYP 20 1379 - 1276 - 1 - - - - - - - - - 0
    TB00 0 68 68 - 28 - - - - - - - - - - -
    TB00 0 0 TYP 20 469 - 193 - 35 - - - - - - - - - 0
    TD03 0 68 142 - 120 - - - - - - - - - - -
    TD03 0 0 TYP 20 979 - 827 - 2 - - - - - - - - - 0
    TH01 0 68 190 - 175 - - - - - - - - - - -
    TH01 0 0 TYP 20 1310 - 1207 - 2 - - - - - - - - - 0
    TD01 0 68 102 - 82 - - - - - - - - - - -
    TD01 0 0 TYP 20 703 - 565 - 10 - - - - - - - - - 0
    PHYSICAL PROPERTIES

    Product Property US Customary Metric
    Coefficient of Thermal Expansion 9.9 ·10-6 per ˚F (68-572 F) 17.8 ∙ 10 6ֿ per ˚C (20-300 C)
    Density 0.298 lb/in3 @ 68 F 8.25 gm/cm3 @ 20 C
    Electrical Conductivity 22 %IACS @ 68 F 0.129 MegaSiemens/cm @ 20 C
    Electrical Resistivity 46.2 ohms-cmil/ft @ 68 F 7.68 microhm-cm @ 20 C
    Melting Point Liquid US 1800 F 982 C
    Melting Point Solid US 1590 F 866 C
    Modulas of Elasticity in Tension 18500 ksi 128000 MPa
    Modulas of Rigidity 7300 ksi 50330 MPa
    Specific Gravity 8.26 8.26
    Specific Heat Capacity 0.1 Btu/lb/˚F @ 68 F 419.0 J/kg ∙ ˚K at 293 K
    Thermal Conductivity 62.0 Btu ∙ ft/(hr ∙ ft2 ∙˚F) @ 68 F 107.3 W/m ∙ ˚K at 20 C
    FABRICATION

    Joining Technique Suitability
    Brazing Good
    Butt Weld Fair
    Capacity for Being Cold Worked Good
    Capacity for Being Hot Formed Excellent
    Coated Metal Arc Welding Good
    Forgeability Rating 40
    Gas Sheilded Arc Welding Good
    Machinability rating 20
    Oxyacetylene Welding Not Recommended
    Seam Weld Fair
    Soldering Good
    Spot Weld Good
    SPECIFICATIONS

    End Product Specification
    Bar AMS 4650, 4651, 4533, ASTM B194, B196, MILITARY MIL-C-21657, SAE J463, J461
    Extrusions ASTM B570
    Forgings AMS 4650, ASTM B570
    Plate ASTM B194
    Rod AMS 4650, 4534, 4533, 4651, ASTM B196, MILITARY MIL-C-21657, SAE J463, J461
    Rod, Forging AMS 4650
    Sheet ASTM B194
    Strip ASTM B194, SAE J463, J461
    Tube, Seamless AMS 4535, ASTM B643
    Wire AMS 4725, ASTM B197, SAE J463, J461