Hangzhou Cuberyllium Metal Technology Co.,Ltd.
Treat with sincerity and promise with quality! - CUBERYLLIUM®
Add to Cart
High Strength QBe2.0 Beryllium Copper Strip 0.1mmx250mm With Hard State
Product Description:
Name: Beryllium copper strip
Specification: 0.1mmx250mm
Tolerance: +/-0.004mm
State: Hard State
Surface: Bright/Polished
Application: for spring connectors
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.
Chemical Composition of QBe2.0 Beryllium Copper Alloy:
| CUBERYLLIUM® Brand | Gost- Number | Beryllium | Al | Ni | Fe | Cu | Si |
| Cuberyllium-Qbe2 | Qbe2 | 1.80-2.10 | 0.15 max | 0.2~0.5 | 0.15 max | Rest. | 0.15 max |
Typical Physical Properties of QBe2.0 Beryllium Copper Alloy:
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
Introduction of QBe2.0 Beryllium Copper Alloy:
| Excellent Properties | Typical Uses |
| 1, High Flexibility 2, High Hardness 3, High Strength 4, High Conductivity 5, High Thermal Conductivity 6, Good Molding Properties 7, Good Fatigue Performance 8, Excellent Corrosion Resistance 9, No Spark Impact | 1: Electronic and electrical equipment; 2: Plastic and optical molds cannot be used for soil cooling, mold cores, punches, and hot runner cooling systems where water cannot pass; 3: High precision electronics; 4: Communication preparation equipment; 5: Instrumentation; 6: Aerospace; 7: Car manufacturer |
Standard of QBe2.0 Beryllium Copper Alloy:
| End Product | Specification |
| Chemistry | ГОСТ 18175 – 78 |
| Wire | ГОСТ 15834 – 77 |
| Rod | ГОСТ 15835-70 |
| Strip&Sheet | ГОСТ 1789-70 |
Mechanical And Electrical Properties of QBe2.0 Beryllium Copper Strip:
| Name | Temper | Thickness (mm) | Tensile Strength | Hardness | Elongation (min) |
| MPa | HV | Percent | |||
| Qbe2 | Soft | <0.15 | >390 | <130 | >30% |
| 0.15~0.25 | 390~590 | ||||
| >0.25 | 390~590 | ||||
| Hard | <0.15 | >590 | >170 | >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 CuBe2 (1.85- 2%) 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.
Size Available
Standard Tolerance of QBe2.0 Beryllium Copper Strip:
| 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. | ||
New information plz contact 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.