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Becu Bar / C17200 Beryllium Copper Strip / Sheet/Rob/Foil
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Meorient Import & Export Co.LTD
China - Hangzhou
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Hangzhou,Shanghai
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5-10人
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USD,CNY
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45 Day(s)
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--Product Description
Becu Bar / C17200 Beryllium Copper Strip / Sheet/Rob/Foil
Cube2--C17200 (CDA 172) Beryllium Copper is the most commonly utilized Copper Beryllium alloy
and is notable for its highest strength and hardness compared to commercial copper alloys. C17200
alloy contains appr. 2% of beryllium and achieves its ultimate tensile strength can exceed 200 ksi,
while the hardness approaches Rockwell C45. Meanwhile, the electrical conductivity is a minimum of
22% IACS in the fully aged condition.C17200 also exhibits exceptional resistance to stress relaxation
at elevated temperatures.Typical Application for C17200 Beryllium Copper Alloys:
Electrical Industry: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay parts,
Connectors, Spring Connectors, 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
Available Sizes:
Custom Diameter & Sizes, Random Mill lengths
Available Products (forms):
Round bars, Round strips, Round wires, Round tube,
Flat bars, Square bars, Rectangular bars, Hexagon bars, Plates, Sheets, Coils
Custom shapes are available upon request.
Chemical Composition:Be: 1.85-2.10%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.
| ASTM | Cu | Ni | Co | Be |
| C17200 | Balance | Ni+Co≥0.2,Ni+Co+Fe≤0.6 | 1.80-2.10 | |
| C17000 | Balance | Ni+Co≥0.2,Ni+Co+Fe≤0.6 | 1.60-1.85 | |
| C17300 | Balance | Ni+Co≥0.2,Ni+Co+Fe≤0.6 | 1.85-2.10 | |
| ASTM | Cu | Ni | Co | Be |
| C17500 | Balance | - | 2.4-2.7 | 0.4-0.7 |
| C17510 | Balance | 1.4-2.2 | 0.3 | 0.2-0.6 |
Typical Physical Properties:
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
Mechanical property:(before heat treatment)
| status | Tensile strength (N/mm2) | Hardness (HV) | Conductivity ( IACS%) | Elongation (%) |
| 0 | 410-540 | 90-160 | ≥17 | 35-70 |
| 1/4H | 510-620 | 145-220 | ≥16 | 10-35 |
| 1/2H | 590-695 | 180-240 | ≥15 | 5-25 |
| H | 685-835 | 210-270 | ≥15 | 2-8 |
Mechanical property:(after heat treatment)
| status | Tensile strength (N/mm2) | Hardness (HV) | Conductivity (IACS%) | Elongation (%) |
| 0T | 1100-1380 | 325-400 | ≥22 | 3-11 |
| 1/4HT | 1180-1400 | 350-430 | ≥22 | 2-8 |
| 1/2HT | 1240-1440 | 360-440 | ≥22 | 2-7 |
| HT | 1270-1480 | 380-450 | ≥22 | 1-5 |
Special Processing
| State | Tensile strength (N/mm2) | Hardness (HV) | Conductivity (IACS%) | Elongation (%) |
| OM | 685-885 | 220-270 | ≥17 | ≥18 |
| 1/4HM | 735-930 | 235-285 | ≥17 | ≥10 |
| 1/2HM | 815-1010 | 260-310 | ≥17 | ≥8 |
| HM | 910-1110 | 295-345 | ≥17 | ≥6 |
| XHM | 1100-1290 | 340-390 | ≥17 | ≥2 |
| XHMS | 1210-1400 | 360-410 | ≥17 | ≥2 |
Features
1. High thermal conductivity
2. High corrosion resistance, especially suitable for polyoxyethylene (PVC) products mold.
3. High hardness, wear resistance and toughness, as inserts used with mould steel and aluminium
can make the mold play a highly efficient, prolong the service life.
4. Polishing performance is good, can achieve high mirror surface precision and complicated shape design.
5. Good tackiness resistance, easy to welding with other metal, easy to machining, there is no
need additional heat treatment.
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