Beryllium Copper Strips BrBNT1.9 (Qbe1.9) 0.5mmx200mm For Spring
Connectors
Product Description:
Name: Beryllium copper strips
Tape: BrBNT1.9 (Qbe1.9)
Specification: 0.5mmx200mm
Tolerance: +/-0.009mm
State: Soft, Hard, Ageing(Soft), Ageing(Hard)
Surface: Bright/Polished
Application: For spring connectors
Chemical Composition of BrBNT1.9 (Qbe1.9) Beryllium Copper Alloy:
| CUBERYLLIUM® Brand | Gost- Number | Be | Al | Ni | Fe | Cu | Si | Ti |
| Qbe1.9Ti | БрБНТ1.9 | 1.87-2.10 | 0.15 max | 0.2~0.5 | 0.15 max | Balance | 0.15 max | 0.1～0.25 |
Typical Physical Properties of BrBNT1.9 (Qbe1.9) Beryllium Copper Alloy:
| Brand | Elastic Modulus | Melting Point (Solidus) | Electrical Conductivity | Density | Thermal Expansion Coefficient | Thermal Conductivity (25 °C) |
|
|
| CUBERYLLIUM®-QBe1.9 | 130 GPa | 870°C | 22-28% IACS | 8.25 g/cm3 | 17.5 x 10-6 m/m °C | 105 W/m °C |
*Properties specified for the precipitation age hardened (heat
treated) condition.
** Value listed is the density after heat treatment. The density
before heat treatment is 8.30 g/cm3) for CUBERYLLIUM®-QBe1.9 |
Mechanical And Electrical Properties of BrBNT1.9 (Qbe1.9) Beryllium Copper Strip:
| Name | Temper | Thickness
(mm) | Tensile Strenth | Hardness | Elongation (min) |
|
| MPa | HV | Percent |
| Qbe1.9 | Soft | <0.15 | >390 | <120 | >30% |
| 0.15~0.25 | 390~590 |
| >0.25 | 390~590 |
| Hard | <0.15 | >590 | >160 | >3% |
| 0.15~0.25 | 590~880 |
| >0.25 | 640~930 |
After Ageing
(Soft) | <0.15 | >1080 | >330 | >2% |
| 0.15~0.25 | 1080~1470 |
| >0.25 | 1130~1470 |
After Ageing
(Hard) | <0.15 | >1080 | >360 | >1.5% |
| 0.15~0.25 | 1130~1570 |
| >0.25 | 1170~1570 |
Key Technology of Beryllium Copper(Heat treatment)
Heat treatment is the most important process for this alloy system.
While all copper alloys are hardenable by cold working, beryllium
copper is unique in being hardenable by a simple low temperature
thermal treatment. It involves two basic steps. The first is called
solution annealing and the second, precipitation or age hardening.
Solution Annealing
For the typical alloy CuBe1.9 Ti(1.85- 2.1%) the alloy is heated
between 720°C and 860°C. At this point the contained beryllium is
essentially “dissolved” in the copper matrix (alpha phase). By
rapidly quenching to room temperature this solid solution structure
is retained. The material at this stage is very soft and ductile
and can be readily cold worked by drawing, forming rolling, or cold
heading. The solution annealing operation is part of the process at
the mill and is not typically used by the customer. Temperature,
time at temperature, quench rate, grain size, and hardness are all
very critical parameters and are tightly controlled by Cuberyllium.
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.
Product Photo:
Application
Our alloys combine a range of properties particularly suited to
meet the exacting requirements of many applications in the
automotive, electronic, aeronautical, Oil&Gas, watch,
electro-chemical industries, etc. Beryllium Copper is widely used
in those fields as contact springs in various applications like
connectors, switches, relays, etc
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.
