High Elesticity Beryllium Qbe2.0 Copper Wire For Welding Equipment
And Rolling Mill Parts
Product Description:
Name: High elesticity beryllium copper wire
Grade: Qbe2.0
Diameter: 0.1mm
Length: According customers' requirement, or random mill lengths
Surface: Bright
State: Soft, Hard
Features: High elesticity
Application: For welding equipment and rolling mill parts
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 beryllium bronze contains a small
amount of nickel, which is a high-performance copper alloy with
good mechanical, physical and chemical comprehensive properties;
after solid solution and time hardening treatment(quenching and
tempering), it has high strength, hardness, corrosion resistance,
elasticity and wear resistance, explosion resistance, heat
resistance, yield and fatigue limit; at the same time, it also has
high electrical conductivity, thermal conductivity and cold
resistance, non-magnetic, no sparks when hit, easy to process, easy
to weld and braze, excellent cooling effect, excellent corrosion
resistance in air, fresh water and sea water.
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.
Chemical Composition of High Elesticity Beryllium Qbe2.0 Copper Alloys:
| 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 |
Copper plus additions equal 99.5% Min.
Typical Physical Properties of High Elesticity Beryllium Qbe2.0 Copper Alloys:
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 And Conductivity Analysis Of High Elesticity Beryllium Qbe2.0 Copper Wire:
| Status | Tensile Strength/Mpa | Elongation/% | Hardness B/C/HV |
| Soft (Quenched) | 400-600 | ≥30 | ≥130HV |
| Hard (Cold Rolled after Quenching) | ≥650 | ≥25 | ≥170HV |
| Soft Aging | ≥1150 | ≥2 | ≥320HV |
| Hard Aging | ≥1200 | ≥1.5 | ≥360HV |
Standard of Russia Market of High Elesticity Beryllium Qbe2.0 Copper Alloys:
| 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 CuBe2Pb) 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 ohmalloy.
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 of High Elesticity Beryllium Qbe2.0 Copper Alloys:
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.
