Details
C17200 Beryllium Copper

C17200 (CDA 172) Beryllium Copper is the most commonly utilized beryllium copper alloy and is notable for exhibiting the highest strength and hardness compared to commercial copper alloys. Its strength and hardness is similar to that of steel. C17200 ultimate tensile and Rockwell hardness properties in a peak aged condition are in the 200 ksi range and RC 45 respectively (electrical conductivity 22% IACS minimum).

  • C17200 SPEC SHEET - Download information on alloy C17200 Beryllium Copper.
  • Download our brochure containing this information on copper alloys for the Oil & Gas Industry.
  • Download our brochure including this alloy used in RWMA applications.

Available Sizes

ASTM B-196, AMS4533, RWMA CLASS IV
Random Mill Lengths

Rounds (DIA in Inches): 1/2" thru 8"

C17200 Rounds - DIA in Inches and Pounds Per Foot
DIA IN INCHES LBS / FOOT
1/2 0.70
5/8 1.10
3/4 1.58
7/8 2.15
1 2.81
1 1/8 3.55
1 1/4 4.39
1 3/8 5.31
1 1/2 6.32
1 5/8 7.41
1 3/4 8.60
1 7/8 9.87
2 11.23
2 1/8 12.68
2 1/4 14.21
2 1/2 17.54
2 3/4 21.23
3 25.26
3 1/4 29.65
3 1/2 34.39
3 3/4 39.48
4 44.91
4 1/4 50.70
4 1/2 56.84
4 3/4 63.34
5 70.18
5 1/4 77.37
5 1/2 84.92
5 3/4 92.81
6 101.06
6 1/2 118.60
7 137.55
7 1/2 157.90
8 179.66

Typical Uses for C17200 Beryllium Copper

Electrical: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay Parts, Connectors, Spring Connectors, Current Carrying, Contact Bridges, Belleville Washers, Navigational Instruments, Clips

Fasteners: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts

Industrial: Pumps, Springs, Electrochemical, Shafts, Non Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Wear Plates on Heavy Equipment, Bellows

Ordnance: Firing Pins

Other: Tools

Chemical Composition for C17200

(%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 - -

(1) Cu value includes Ag.
(2) Ni + Co, .20% min.: Ni + Fe + Co, .6% max. Ni +
Note: Cu + Sum of Named Elements, 99.5% min.