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Address: No.126 Jincheng Rd., Xindeng Industral Area,Fuyang Dist. ,Hangzhou,Zhejiang Prov.China
Contact name:Yomi
Hangzhou Cuberyllium Metal Technology Co.,Ltd. |
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Soft TB00 Copper Beryllium Strip BrBNT1.9 (Qbe1.9) 0.3mmx200mm For Electrical Switch
Product Description:
Name: Copper Beryllium Strip
Tape: BrBNT1.9 (Qbe1.9)
Specification: 0.3mmx200mm
Tolerance: +/-0.008mm
State: Soft, Hard, Ageing(Soft), Ageing(Hard)
Surface: Bright/Polished
Application: For electrical switch
Product Informance of CUBERYLLIUM® Company:
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(БрБ2;БрБНТ1.9) for Russia Market. Also Supply Master alloy : CuBeryllium-200; CuBeryllium-275);CuBeryllium-350 and Cuberyllium-400 to global factory.
CUBERYLLIUM ®-Qbe1.9 also named Cube1.9Ti.
QBe1.9 is beryllium bronze with a small amount of nickel and titanium. It has characteristics similar to Qbe2.
Its advantages include: small elastic hysteresis, high fatigue strength, stable elasticity when temperature changes, low sensitivity to aging temperature changes, low price, and less reduction in strength and hardness than QBe2. It does not produce sparks.
QBe1.9 is used to make various important-purpose springs, elastic components of precision instruments, sensitive components, and elastic components that bear high variable direction loads. It can replace beryllium bronze of QBe2.
Chemical Composition of BrBNT1.9 (Qbe1.9) Copper Beryllium 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) Copper Beryllium Alloy:
Density (g/cm3): 8.25
Elastic Modulus(Gpa): 130
Electrical Conductivity: 22-28% IACS
Thermal Expansion Coefficient(m/m℃): 17.5x10-6
Thermal Conductivity(25℃): 105W/m℃
Melting Point (°C): 870
Mechanical And Electrical Properties of BrBNT1.9 (Qbe1.9) Copper Beryllium Strip:
| Name | Temper | Thickness (mm) | Tensile Strength | 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 |
Standard of BrBNT1.9 (Qbe1.9) Copper Beryllium Alloy:
| End Product | Specification |
| Chemistry | ГОСТ 18175 – 78 |
| Wire | ГОСТ 15834 – 77 |
| Rod | ГОСТ 15835-70 |
| Strip&Sheet | ГОСТ 1789-70 |
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.
Standard Tolerance of BrBNT1.9 (Qbe1.9) Copper Beryllium Strip:
| Tolerance Sheet | ||
| (MM) | ||
| Strip Thickness | CuBeryllium® Standard Tolerance | |
| over | incl. | 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. | ||
New information plz contact to info&cuberyllium.com.
Product Photo:
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.
