UNS.C17500 Cobalt Beryllium Copper

It takes an uncommon amount of knowledge and experience to create a thoroughly reliable supply chain for beryllium copper stock. That's why leading manufacturers turn to PTJ for beryllium copper stock that delivers both needed quantities and essential quality without fail.
CuCo2Be—C17500 (CDA 175) Cobalt Beryllium Copper is primarily utilized in the industry applications that require most highly thermal or electrical conductivity, which features a cobalt alloying addition (2.40-2.70%).
C17500 also Offers good strength and hardness characteristics coupled with conductivity in the range of 45-60 percent of copper with ultimate tensile and hardness properties approaching 140 ksi and RB 100 respectively.Alloy 10 is available in wrought product forms and can be supplied fully hardened by our producing mill.

Typical Application for CuCo2Be - C17500 Beryllium Copper Alloys

C17500/C17510 offers a combination of high electrical and thermal conductivity with good strength compared to most copper based alloys. C17500 alloy is the mirror image of alloy C17510 in terms of its properties and characteristics. The beryllium copper differ in that C175 specifies a cobalt alloying addition (2.40-2.70%) and alloy 17510 specifies a nickel alloying addition (1.40-2.20%), but their performance are the same.
  • Electrical Industry: Switch Parts, Relay parts, Electrical Connectors, Fuse Clips, Contact Bridges, Electrical Motor Components, Navigational Instruments, Electrical Switch and Relay Blades. Fasteners: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts
  • Industrial: Bushings, Non-Sparking Safety Tools, Shafts, Pumps, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Bellows, Electrochemical Springs, Flexible Metal Hose
  • Available Sizes: Custom Diameter & Sizes, Random Mill lengths
  • Available Products (forms): Round bars, Round wires, Round tube Flat bars, Square bars, Rectangular bars, Hexagon bars, Plates Custom shapes are available upon request.
Excellent Properties Of Beryllium Copper Alloy
High Flexibility
High Hardness
High Strength
High Conductivity
High Thermal Conductivity
Good Molding Properties
Good Fatigue Performance
Excellent Corrosion Resistance
No Spark Impact

C17500 Chemical Composition

Executive standard:ASTM/GB/T5233-2001/EN12163(%max., unless shown as range or min.)
Numbering
Be
Co+Ni
Cu
Pb
Si
Fe
Al
C17500
0.4-0.7
2.4-2.7
Margin
0.15
0.15
0.15
Mechanical properties and conductivity analysis
(AT/TF00)
Status
Tensile strength/MPa
Rockwell hardness/B
Conductivity/minimum% IACS
A(TB00)
Solution treatment state
240-380
B 50min
20
H(TD04)
Solution heat treatment cold working hard state
450-550
B 60-80
20
After precipitation heat treatment
Status
Tensile strength/MPa
Rockwell hardness/B
Conductivity/minimum% IACS
AT(TF00)
Precipitation heat treatment
690-895
92-100
45
HT(TH04)
Hard and precipitation heat treatment
760-965
95-102
48
Available status
Brush Name
ASTM Name
Description
A
TB00
Solution annealing state (quenched state)
¼H
TD01
Quarter hard
½H
TD02
Half hard (semi-hard)
¾H
TD03
Three-quarters hard
H
TD04
Hard state (full hard)
AT
TF00
Standard aging heat treatment in quenched state
¼HT
TH01
Quarter hard standard aging heat treatment
½HT
TH02
Half-hard standard aging heat treatment
¾HT
TH03
Three-quarters hard standard aging heat treatment
HT
TH04
Hard standard aging heat treatment (a process of comprehensive strengthening of deformation and aging)
Note: In the Brush name:
  • "A" represents the state of solution annealing (annealed, the alloy is in the softest state, easy to be stamped and formed, and needs to be cold worked or strengthened during the direct failure period);
  • "H" stands for cold processing state (hard);
  • "T" means that the material has been aging hardened by standard heat treatment (heat treatment means the state of aging strengthening heat treatment).
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