High Stength Beryllium Bronze Strip Tape Qbe2 Strip 0.4mmx250mm
Annealing Strip for Spring
Product Description:
Name: Beryllium Bronze Strip
Tape: Qbe2
Specification: 0.4mmx250mm
Tolerance: +/-0.008mm
State: Soft
Surface: Bright/Polished
Application: for Spring
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 ®-Qbe2 also named Cube2 Beryllium Copper is the most commonly utilized Copper Beryllium
alloy and is notable for its highest strength and hardness compared
to commercial copper alloys. Qbe2 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. Qbe2 also exhibits exceptional resistance to stress
relaxation at elevated temperatures.
Chemical Composition of Beryllium Bronze Alloy Qbe2:
Be: 1.80-2.10%
Al: 0.15% Max
Ni: 0.20-0.50%
Fe: 0.15% Max.
Cu: Rest
Note: Copper plus additions equal 99.5% minimum.
| Available Product Forms of Beryllium Bronze Alloy Qbe2 | Round Strips, Round Rods, Bars, Coils, Sheets, Plates |
| Custom shapes are available upon request. |
Typical Physical Properties:
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
| Mechanical Properties | | | |
| 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 |
Standard Tolerance of QBe2 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.
