ASTM C17300 Bright/Polished BeCu Beryllium Copper Bar For
Electrical Switch and Relay Blades
Physical Property:
Density (g/cm3): 8.36
Density before age hardening (g/cm3): 8.25
Elastic Modulus (kg/mm2 (103)): 13.40
Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C): 17 x 10-6
Thermal Conductivity (cal/(cm-s-°C)): 0.25
Melting Range (°C): 870-980
Chemical Composition:
Be: 1.85-2.10%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Lead: 0.20-0.60%
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.
Typical Applications:
1)Electrical Industry: Switch Parts, Relay parts, Electrical
Connectors, Fuse Clips, Contact Bridges, Electrical Motor
Components, Navigational Instruments, Electrical Switch and Relay
Blades.
2)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.
Mechanical and Electrical Properties:
| Temper(*) | Diameter | Heat Treatment | Tensile Strength ksi | Elogation Percent (Min) | Electrical Conductivity Percent IACS | Hardness Rockwell B or C Scale |
|---|
| A(TB00) | ALL SIZE | / | 400~600 | 30 | 15~19 | B45~85 |
H(TD04) | 5~10 | / | 660~900 | 5 | 15~19 |
＞B88 |
| ＞10~25 | / | 620~860 | 5 | 15~19 |
| ＞25 | / | 590~830 | 5 | 15~19 |
| AT(TF00) | ALL SIZE | 3 hr 320°C | 1100~1380 | 2 | 22~28 | C35~42 |
| HT(TH04) | 5~10 | 2 hr 320°C | 1200~1550 | 1 | 22~28 | C37~45 |
| ＞10~25 | 1150~1520 | 1 | 22~28 | C36~44 |
| ＞25 | 1120~1480 | 1 | 22~28 | C35~44 |
Detailed Specifications:
| Bar/Rod | Diameter:1.0-200mm Length:1000-6000mm |
| Sheet/Plate | Thickness:0.2-100mm Width:100-1000mm Length:1000-2000mm |
| Strip/Tape | Thickness:0.01-2.0mm Width:4-1000mm |
| Pipe/Tube | Thickness:0.1-100mm OD:1-600mm |
Lead Time:
| Quantity(kilograms) | 1 - 50 | 51 - 100 | >100 |
| Est. Time(days) | 7 | 15 | To be negotiated |
Product Photos:
Alloy M25 can be supplied in the form of bar or wire based on
different design needs. Also there are different supply states for
customers to choose according to different needs. C17300 also has
good welding performance, wear resistance and adhesion resistance.
It can be forged into parts of various shapes. Beryllium copper
c17300 has better strength and wear resistance than chromium
zirconium copper alloy.
FAQ:
Q1:What’s the advantages the Beryllium Copper of CUBERYLLIUM®?
A1: 1: The Biggest Coil weight could be reach 1200kg/Coil
2:We are the only one who melting by Vacuum semi-Continuous
Furnace.
3:Surface further polishing for top clients.
Q2: Why you melting by Vacuum semi-Continuous Furnace?
A2:Could be get the Cast ingot without gas,smaller segregation,
Grain Refinement.
Q3:Could you produce Beryllium Copper strip by Mill Hardened
process?
A3:Yes, we could produce AM(TM00), 1/2HM(TM01).HM(TM04) XHM(TM06)
XHMS(TM08).,we are the only factory could do harden strip in China.
Q4: What's the payment terms?
A4: We accept T/T, L/C, Paypal etc. It can be negotiated when the
amount is different.
