Round Beryllium Copper Rod

Alloy 25 (UNS C17200) is the most commonly specified beryllium copper and is available in several wrought forms. In its age-hardened condition, Alloy 25 attains the highest strength and hardness of any commercial copper base alloy. The ultimate tensile strength can exceed 200 ksi, while the hardness approaches Rockwell C45. Also, in the fully aged condition, the electrical conductivity is a minimum of 22% IACS (International Annealed Copper Standard). Alloy 25 also exhibits exceptional resistance to stress relaxation at elevated temperatures.

12' Random Lengths
Condition H (Hardened)
Specifications:CDA 172 ASTM B196
AMS 4650 UNS 17200
Nominal Composition:
Copper: 98.1% Beryllium: 1.9%
Also available in condition A (annealed).

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Items	RBCRA-25-0938 Round Beryllium Copper Rod - Alloy 25	RBCRA-25-125 Round Beryllium Copper Rod - Alloy 25	RBCRA-25-1875 Round Beryllium Copper Rod - Alloy 25	RBCRA-25-250 Round Beryllium Copper Rod - Alloy 25	RBCRA-25-4375 Round Beryllium Copper Rod - Alloy 25
Material	N/A Beryllium Copper
Shapeform	N/A Round Rod
Condition	N/A A (Annealed) H (Hardened)
Type	N/A Alloy 25
Diameter	N/A 3/32 inches	N/A 1/8 inches	N/A 3/16 inches	N/A 1/4 inches	N/A 7/16 inches
Diameter	N/A 0.0938 inches2.38252 mm	N/A 0.125 inches3.175 mm	N/A 0.1875 inches4.7625 mm	N/A 0.25 inches6.35 mm	N/A 0.4375 inches11.1125 mm
Weight	N/A 0.0247 lbs/ft0.03675854 kg/m	N/A 0.0439 lbs/ft0.06533198 kg/m	N/A 0.0987 lbs/ft0.14688534 kg/m	N/A 0.1755 lbs/ft0.2611791 kg/m	N/A 0.5376 lbs/ft0.80005632 kg/m
Weight per 12' Length	N/A 0.297 lbs0.1346895 kg	N/A 0.527 lbs0.2389945 kg	N/A 1.185 lbs0.5373975 kg	N/A 2.106 lbs0.955071 kg	N/A 6.451 lbs2.9255285 kg
Nominal Composition	N/A 0.20% Min. Cobalt + Nickel 0.6% Max. Cobalt + Nickel + Iron 1.9% Beryllium 98.1% Copper
ASTM Specification	N/A AMS 4650 ASTM B196 CDA 172 UNS 17200
Random Lengths	N/A 12 ft
Density	N/A 0.302 lbs/in³
Elastic Modulus	N/A 19 x 10⁶ psi
Coefficient of Thermal Expansion (70ºF to 400ºF)	N/A 9.7 x 10⁴ in/in/ºF
Thermal Conductivity	N/A 60 Btu/(ft.hr.ºF)
Melting Temperature Range	N/A 1600 to 1800 ºF
Approvals	N/A AMS 4650 AMS 4651 ASTM B196 ASTM B251 ASTM B643 RWMA Class 4 SAE J461 SAE J463

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