C17200 Copper (CDA 172)

C17200 is also known as Alloy 25 and is the 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 copper's 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).
Product Description

Typical Uses for C17200 Beryllium Copper:

ELECTRICAL:
Electrical Switch / Relay BladesFuse ClipsSwitch Parts
Relay PartsConnectorsSpring Connectors
Current CarryingContact BridgesBelleville Washers
Navigational InstrumentsClips
FASTENERS:
WashersFastenersLock Washers
Retaining RingsRoll PinsScrews
Bolts

INDUSTRIAL:
PumpsSpringsElectrochemical
ShaftsNon Sparking Safety ToolsFlexible Metal Hose
Housings for InstrumentsBearingsBushings
Valve SeatsValve StemsDiaphragms
SpringsWelding EquipmentRolling Mill Parts
Spline ShaftsPump PartsValves
Bourdon TubesWear Plates on Heavy EquipmentBellows
ORDINANCE:
Firing Pins

OTHER:
Tools

Sizes Available From JMH

SOLID BAR: 1/4" . 6" diameter

RECTANGLES: 3/8" x 1/2" . 1" x 3" thickness x width

SQUARES: 3/8" . 3" square

PLATES: 2" . 5" thickness

DISCS & RINGS: orged to size

HONED TUBES: up to 4" OD

Specifications

End ProductSpecification
BarAMS 4650, 4651, 4533, ASTM B194, B196, MILITARY MIL-C-21657, SAE J463, J461
ExtrusionsASTM B570
ForgingsAMS 4650, ASTM B570
PlateASTM B194
RodAMS 4650, 4534, 4533, 4651, ASTM B196, MILITARY MIL-C-21657, SAE J463, J461
Rod, ForgingAMS 4650
SheetASTM B194
StripASTM B194, SAE J463, J461
Tube, SeamlessAMS 4535, ASTM B643
WireAMS 4725, ASTM B197, SAE J463, J461


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