Copper Beryllium 25

Key Features
  • Ultra-High Tensile Strength
  • High fatigue strength
  • Wear resistant
  • Corrosion resistant
  • Galling resistant, and stress relaxation
  • Electrical conductivity of 22% IACS
  • Excellent machinability due to the inclusion of lead
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Key Features
  • Ultra-High Tensile Strength
  • High fatigue strength
  • Wear resistant
  • Corrosion resistant
  • Galling resistant, and stress relaxation
  • Electrical conductivity of 22% IACS
  • Excellent machinability due to the inclusion of lead

Overview

Copper Beryllium 25 is an ultra-high strength Copper Alloy heat treated to 1140 MPA.

Copper Beryllium 25 rod and bar from Kormax provides the highest strength of any copper alloy, with electrical and thermal conductivity considerably greater than other high strength copper alloys. This alloy features high fatigue strength and resistance to wear, corrosion, galling, and stress relaxation.

Chemical Composition

ElementSymbolRange %
BerylliumBe1.80-2.00
NickelNi0.20-0.60
CobaltCo0.20-0.60
IronFe0.60 maximum
CopperCuBalance

Physical Properties

MaterialUnitCopper Beryllium
Tensile Strength MinN/mm21140
Yield Strength MinN/mm2900
Elongation Min%3%
Hardness MinBHN148

Comparative Specifications

C17300, ASTM B-196, AMS 4533, AMS 4534, AMS 4650, AMS 4651, SAE J 461, SAE J 463, JIS H3270, EN 1654, EN 12163, EN 12165, EN 12167, GB5233, GB4431, BMS 7-353 Type 2, MIL-C-21657

Alternative Tempers available.

Health and Safety

Processing beryllium-containing alloys poses a health risk if safe practices are not followed. Inhalation of airborne beryllium can cause serious lung diseases in some individuals. Occupational safety and health regulatory agencies worldwide have set mandatory limits on occupational respiratory exposures. Read and follow the guidance in the Safety Data Sheet (SDS) before working with this material. Additional important beryllium health and safety information and guidance can be found at berylliumsafety.com & berylliumsafety.eu.