Hangzhou Cuberyllium Metal Technology Co.,Ltd.
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UNS C17200 Beryllium Copper BeCu Tape TD04 for the manufacture of EMI shielding finger
Product Normal Description:
Product Name: Coil copper
Grade: Cube2/C17200
Standard: ASTM B194, SAE J463, J461
Product Specification: 0.8-2mm Thickness
State: 1/2 H(TD02), H(TD04), A(TB00)
Typical Application: used for EMI shielding finger
Product Brand: CUBERYLLIUM®
CUBERYLLIUM® manufactures copper beryllium in several distinct compositions.
These fall into two categories: high strength beryllium copper alloys 172(UNS. C17200),173(UNS. C17300),170(UNS. C17000), and copper alloys selected for high conductivity 751(UNS. 17510),750(UNS. 17500),741(UNS. 17410).
We also Supply Master alloy : CuBeryllium-200, CuBeryllium-275, CuBeryllium-350 and Cuberyllium-400 to global factory.
CUBERYLLIUM ®-172 also named Cube2--UNS. 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 1360Mpa, 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.
Chemical Composition of CUBERYLLIUM ®-172 Beryllium Copper Alloys:
Product Grade: CUBERYLLIUM ®-172(UNS. C17200)
Beryllium(Be): 1.80-2.00%
Cobalt(Co) + Nickel(Ni): 0.20% Min
Cobalt(Co) + Nickel(Ni) + Iron(Fe): 0.60% Max
Lead: 0.02% Max
Copper(Cu): Balance
Note: Copper plus additions equal 99.5% Minimum.
Typical Physical Properties of CUBERYLLIUM ®-172(Beryllium Copper Strip C17200):
| Density (g/cm3): | 8.36 |
| Density before age hardening (g/cm3): | 8.25 |
| Elastic Modulus (kg/mm2 (103)): | 13.4 |
| 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 |
Temper Designations of CUBERYLLIUM ®-172:
| CuBeryllium Designation | ASTM | Mechanical and Electrical Properties of Copper Beryllium Strip | ||||||
| Designation | Description | Tensile Strength (Mpa) | Yield Strength 0.2% offset | Elongation Percent | HARDNESS (HV) | HARDNESS Rockwell B or C Scale | Electrical Conductivity (% IACS) | |
| A | TB00 | Solution Annealed | 410～530 | 190～380 | 35~60 | <130 | 45~78HRB | 15～19 |
| 1/2 H | TD02 | Half Hard | 580～690 | 510～660 | 12~30 | 180~220 | 88~96HRB | 15～19 |
| H | TD04 | Hard | 680~830 | 620~800 | 2~18 | 220~240 | 96~102HRB | 15～19 |
| HM | TM04 | Mill hardened | 930～1040 | 750～940 | 9～20 | 270～325 | 28～35HRC | 17～28 |
| SHM | TM05 | 1030～1110 | 860～970 | 9～18 | 295～350 | 31～37HRC | 17～28 | |
| XHM | TM06 | 1060～1210 | 930～1180 | 4～15 | 300～360 | 32～38HRC | 17～28 | |
Fabrication and Heat Treatment of CUBERYLLIUM ®-172 Beryllium Copper Alloys:
Machinability
The machinability rate of C17200 copper alloys is 20%.
Welding
Welding procedures such as butt welding, seam welding, spot welding, coated metal arc welding, gas shielded arc welding, brazing and soldering are recommended for C17200 copper alloys. For this type of alloys, oxyacetylene welding is not recommended.
Forging
Forging of C17200 copper alloys is carried out at temperature ranging from 649 to 816°C (1200 to 1500°F).
Hot Working
C17200 copper alloys have good hot working property.
Cold Working
C17200 copper alloys have excellent cold working property.
Annealing
C17200 copper alloys are annealed at temperature ranging from 774 to 802°C (1425 to 1475°F).
Standard Tolerance
| Tolerance Sheet | ||
| (MM) | ||
| Strip Thickness | CuBeryllium® Standard Tolerance | |
| over | incl. | plus or minus |
| 0.03 | 0.08 | 0.003 |
| 0.08 | 0.1 | 0.004 |
| 0.1 | 0.15 | 0.005 |
| 0.15 | 0.2 | 0.006 |
| 0.2 | 0.25 | 0.007 |
| 0.25 | 0.4 | 0.008 |
| 0.4 | 0.55 | 0.009 |
| 0.55 | 0.7 | 0.01 |
| 0.7 | 0.9 | 0.015 |
| 0.9 | 1.5 | 0.025 |
| Note: Tolerances apply to rolled and mill hardened strip. | ||
Product Photos:
Applications of CUBERYLLIUM ®-172:
CUBERYLLIUM ®-172 is usually used for electrical industry, fasteners and industrial.
Electrical Industry: electrical switch and relay blades(switch parts, relay parts), clips, fuse clips, connectors, spring connectors, navigational indstruments, contact bridges, belleville washers;
Fasteners: washers, lock washers, fasteners, retaining rings, roll pins, screws, bolts;
Industrial: pump parts, springs, electrochemical, spline shafts, non sparking safety tools, flexible metal hose, housings for indtruments, bearings, bushings, valve seats, valve stems, disphragms, springs, welding equipment, rolling mill parts, valves, bourdon tubes, wear plates on heavy equipment, bellows.
FAQ:
Q1: Could you produce Beryllium Copper strip by Mill Hardened process.
A1: 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.
Q2: What’s the advantages the Beryllium Copper of CUBERYLLIUM®.
A2: 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.
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.