AMS: AMS , AMS 4530, AMS 4533, AMS 4650, AMS 4651, AMS MIL-H-7199, AMS 4535, AMS 4725
Alloy Description: Copper Beryllium (1.8%)
UK: CuBe2, Alloy 25
EU: (France)Alliage25-CuBe1.9, CuBe2-NFL14721

The “King” of all high-strength Copper Alloys, this non-magnetic alloy offers the best of all worlds when it comes to engineering requirements. Strength, conductivity, ductility, corrosion resistance, machinability, and formability—all rival most any other alloy, Copper or otherwise.

Beryllium Copper Alloys, which get their strength from precipitation heat treating, is used in Aerospace, Oil & Gas, Marine, Electronics, Performance Racing, and Plastic Mold tooling—as well as any market where rigorous performance is required. Applications include large aircraft bearings and bushings, down hole drilling components, valve components, air bag sensors, fire suppression, welding equipment, computer connectors, shielding, springs, gears, plastic mold tooling and electrical switch relays.

Alloy C17200 Properties & Benefits:

  • Moderate electrical and thermal conductivity
  • Excellent for galling resistance
  • Excellent machinability
  • Low friction properties
  • Excellent corrosion and erosion resistance
  • Non-magnetic
  • Multiple tempers
  • Able to anneal and re-age


Specifications: AMS 4650, AMS 4530, AMS 4651, AMS 4533, AMS4535, AMS 4534, ASTM-B-196, QQ-C-530, ASNA 3417, ASNA6110, NF L-14709