C17200 Copper (CDA 172) ASTM B196, AMS 4533, SAE J461, RWMA CLASS IV 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). Typical Uses for C17200 Beryllium Copper: ELECTRICAL: Electrical Switch / Relay Blades Fuse Clips Switch Parts Relay Parts Connectors Spring Connectors Current Carrying Contact Bridges 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 Die ORDINANCE: Firing Pins OTHER: Tools 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 Chemical Composition: Be: 1.85-2.10% Co+Ni: 0.20% Min. Co+Ni+Fe: 0.60% Max. Cu: Balance Note: Copper plus additions equal 99.5% minimum.
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