Hangzhou Cuberyllium Metal Technology Co.,Ltd.
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UNS. C17500 Beryllium Copper Round Bars With High Electrical And Thermal Conductivity
Product Description:
Name: Beryllium Copper Round Bars
Grade: UNS. C17500
End Product Form: Rod/ Bar
Standard: ASTM B441
Processing: Seamless / Welding
Feature: With high electrical and thermal conductivity
Package: Pack in coil+waterproofing winding film+Drier+Wooden Case
Specification: All sizes
CUBERYLLIUM® manufactures copper beryllium in several distinct compositions. These fall into two categories: alloys selected for high strength (Alloys 172,173,170) and alloys selected for high conductivity (Alloys 751,750,741). And Gost standard QBe2,QBe1.9Ti for Russia Market. Also Supply Master alloy : CuBeryllium-200; CuBeryllium-275);CuBeryllium-350 and Cuberyllium-400 to global factory.
Introduction of C17500 Alloy:
Alloy c17500 bars has a Chemical Formula of BeCu. Beryllium copper goes by various names and these are beryllium bronze, copper beryllium (CuBe) and spring copper. C17500 has moderate strength and its conductivity is around 50% IACS. Copper that is of the c17500 beryllium variety, is used in a wide variety of industrial processes in resistance welding equipment, switch parts, spring connectors, fasteners, fuse clips, die–casting plunger tips, springs, resistance and spot welding tips, connectors, seam welding dies, relay parts, tooling for plastic moulds, washers, etc. It is available in sheets, round tubes, rectangular bars, flat bars, round wires, coils, square bars, plates, round bars, hexagon bars and various custom made shapes.
Chemical Composition of UNS. C17500 Beryllium Copper Alloys:
| CUBERYLLIUM® Brand | UNS-Number | Beryllium | Cobalt | Nickel | Cobalt+Nickel | Lead | Copper |
| Cuberyllium-C750 | C17500 | 0.40-0.70 | 2.4～2.7 | - | - | - | Balance |
Related material specifications of UNS. C17500 Beryllium Copper Alloys:
Rods/Bars/Tubes: ASTM B441, SAE J461, 463; RWMA Class 3
Strips: ASTM B534
Sheets: ASTM B534
Wires: ASTM B441
Plates: ASTM B534, SAE J461, RWMA Class 3
European Standards: CuCo2Be, CuCoBe, UNS. C17500, Alloy 10, DIN 2.1285, CW104C to EN
Note:
ASTM: American Society for Testing and Materials
SAE: Society of Automotive Engineers
AMS: Aerospace Materials Specification(Published by SEA)
RWMA: Resistance Welder Manufacturers' Association
Note: Unless otherwise specified, material will be produced by ASTM.
Typical Physical Properties of UNS. C17500 Beryllium Copper Alloys:
| Density | 8.83 | g/cm3 |
| Density before age hardening | 8.75 | g/cm3 |
| Melting Range | 1000~1070 | ℃ |
| Elastic Modulus | 14.1 | (kg/mm2 (103) |
| Thermal Expansion Coefficient | 18 x 10 -6 | 20 °C to 200 °C m/m/°C |
| Thermal Conductivity | 0.48 | cal/(cm-s-°C) |
Mechanical and Electrical Properties of UNS. C17500(CUBERYLLIUM®-750) Beryllium Copper Round Bars:
| Temper(*) | Diameter | Heat Treatment | Tensile Strength Mpa | Elongation Percent (Min) | Electrical Conductivity Percent IACS | Hardness Rockwell B Scale |
|---|---|---|---|---|---|---|
| A(TB00) | ALL SIZE | / | 240~380 | 20~40 | 20~35 | B20~50 |
| H(TD04) | ALL SIZE | / | 440~550 | 10~20 | 20~35 | B20~30 |
| AT(TF00) | ALL SIZE | 3 hr 480℃ | 680~900 | 10~30 | 45~60 | B92~100 |
| HT(TH04 | ALL SIZE | 2 hr 480 ℃ | 750~960 | 5~30 | 48~60 | B95~102 |
Product Photo:
Weldability
Soldering, brazing, gas shielded arc welding, coated metal arc welding, spot welding, seam welding and butt welding are all recommended
Hot & Cold Workability
Good hot working properties. Excellent cold working properties.
Key Technology of Beryllium Copper(Heat treatment)
Age Hardening
Age hardening significantly enhances the material’s strength. This reaction is generally carried out at temperatures between 260°C and 540°C depending on alloy and desired characteristics. This cycle causes the dissolved beryllium to precipitate as a beryllium rich (gamma) phase in the matrix and at the grain boundaries. It is the formation of this precipitate which causes the large increase in material strength. The level of mechanical properties attained is determined by the temperature and time at temperature. It should be recognized that beryllium copper has no room temperature aging characteristics.
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: How about your payment terms?
A2: Generally, 30% as deposit by T/T, then 70% should be paid before the delivery.
Q3: Why you melting by Vacuum semi-Continuous Furnace?
A3:Could be get the Cast ingot without gas,smaller segregation, Grain Refinement
Q4: What's the payment terms?
A4: We accept T/T, L/C, Paypal etc. It can be negotiated when the amount is different.