Beryllium Copper C172 / C17200 / Alloy 25

ASTM B196, AMS 4533, DIN 2.1247, BS 2870 CB101, BS 2871 CB101, BS 2874 CB101, EN CW101C

Farmer’s Copper Ltd. inventories C17200 Beryllium Copper. The principle characteristics of alloy 172 are the excellent response to precipitation-hardening treatments, excellent thermal conductivity, and resistance to stress relaxation.beryllium copper 172 The high strength beryllium coppers C172 can be purchased in the solution annealed or cold worked tempers and can be easily formed or machined. A low temperature heat treatment (600 degrees for 2-3 hours) produces maximum strength and hardness. C17200, also commonly known as Alloy 25, is available in rod, bar, tube, and strip.

Click here to view the table: Mechanical Properties of C172 (measured at room temperature, 68 F (20 C).

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Chemical Composition
(%max., unless shown as range or min.)

 

Cu(1)

Al

Be

Co(2)

Si

Min./Max.

Rem.

.20

1.80-2.00

.20 min

.20

Nominal

98.1

-

1.90

-

-

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