UNS C17200 Beryllium Copper Alloy Wire

Beryllium Copper wire has good to excellent corrosion resistance as well as excellent cold workability and good hot formability.

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UNS C17200 Beryllium Copper Alloy Flat, Shaped and Round Wire

Applications of Beryllium Copper Alloy Wire

  • Electrical/electronic applications where higher strength levels are required while maintaining good electrical conductivity
  • Heating elements
  • Cable shielding
  • Spring
  • Electrical contact
  • Semiconductor lead frames
  • Spring pins
  • Wave washers
  • flexible metal hose
  • Bourdon tubing
  • bellows
  • clips
  • washers
  • retaining rings

Description

Beryllium Copper wire has good to excellent corrosion resistance as well as excellent cold workability and good hot formability. These alloys are commonly fabricated by blanking, forming and bending, turning, drilling, and tapping. UNS C17200 exhibits good to excellent corrosion resistance with medium to high thermal and electrical conductivity. They offer higher strength levels than pure copper alloys and some are heat treatable.

Chemistry Typical

UNS# COPPER* IRON NAMED BERYLLIUM OTHER

C16200 Balance 0.02 max 07 - 1.2 Cd n/a n/a

C17200 Balance n/a n/a 1.80 - 2.0 0.20AI, 0.20 Co, 0.20 Si

C17500 Balance 0.10 max 2.4 - 2.7 Co 0.4 - 0.7 0.20AI,

0.2 Si

C18200 Balance 0.10 max 0.6 0 1.5 Cr n/a 0.05 Pb,

0.10 Si

C19400 97.0 min 2.1 - 2.6 0.015-0.15 P n/a 0.05 - 0.20 Zn, 0.03 Pb

C19500 96.0 min 1.0 - 2.0 0.10 0- 1.0 Sn n/a 0.01 - .35 P, 0.30 -1.3 Co

C19700 Balance 0.30 -1.2 0.20-0.40 P n/a 0.20 Sn,

0.20 Si,
0.05 Pb

* Contact Ulbrich Wire for request regarding the availability of other copper alloys.
* Contact Ulbrich Technical Department for limits for additional trace elements and impurity levels.
* Copper Values include Silver.

Physical Properties

Typical Density: 0.322 lbs/in3, 8.92 g/cm3

Electrical Conductivity: (% IACS at 68°F 20°C, annealed): 20-90%

Mean Coefficient of Thermal Expansion: µin/in-°F (µm/m-°C)
68 - 572 °F: 9.6 - 9.7

Thermal Conductivity: BTU-in/hr-ft2-°F
68 °F: 60 - 185

Modulus of Elasticity: KSI

17 - 18.5 x 103 in tension

Forms


Profile, Round, Flat, Square


Mechanical Properties at Room Temperature

Properties: Annealed Typical

Ultimate Tensile Strength: 35 - 85 KSI (241 - 586 MPa)

Yield Strength: 11 - 25 KSI (71 - 172 MPa)

Elongation: 20% min

Properties: Tempered

High performance copper alloys can be cold worked to various tempers.

*Actual physical and mechanical properties are alloy dependent. Contact Ulbrich Technical Service for alloy specific properties.

Additional Properties

Corrosion Resistance

Contact Ulbrich Wire for specific information.

Wire Finishes

XC - Extra clean. Annealed or annealed and cold rolled. Contact Ulbrich Wire with special finish requests.

Heat Treatment

Alloys 162, 172 and 175 are hardenable by heat treatment.

Welding

Contact Ulbrich Wire for specific information.

Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.

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