RWMA Class 4 C172 beryllium copper wiring TD03 or TD04 Temper
Product Description:
| Material Grade | RWMA Class 4 C172 |
| Other Designate | UNS.C17200, CuBe2, CW101Cm, DIN 2.1247, AMS 4533 |
| End Product Form | Wiring, Round Wire |
| State | TD03, TD04 |
| Diameter | 0.1mm-1.0mm |
| MOQ | 5kg |
| Application | Spring Industry |
| Surface | Bright |
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 for Russia
Market. Also Supply Master alloy : CuBeryllium-200;
CuBeryllium-275);CuBeryllium-350 and Cuberyllium-400 to global
factory.
Copper Beryllium C17200 is the highest strength copper alloy and is
specified when the mechanical strength is the limiting design
feature for a copper alloy. It is a heat treatable copper alloy
having the unusual combination of very high hardness and strength
and lower electrical conductivity than AWS J1.3/ RWMA Class 3
materials.
| Chemical Compositions of RWMA Class 4 C172 Beryllium Copper Alloy |
|---|
| RWMA Class | UNS Number | Description | Cu¹ | Fe | Co | Ni | Si | Be | Al |
|---|
| 4 | C17200 | Beryllium Copper | Balance | - | Ni + Co = 0.20% min. | 0.20% max. | 1.8-2.0% | 0.20% max. |
|
| Ni + Co + Fe = 0.6% max. |
Cu¹:Copper plus additions equal 99.5% Min.
Application of RWMA Class 4 C172 Beryllium Copper Alloy:
- Landing Gear Bushings
- Directional Drilling Equipment
- Bearings
- Bushings
- Flex Shafts
- Pressure Housings
Typical Physical Properties of RWMA Class 4 C172 Beryllium Copper
Alloy:
| Density (g/cm3): | 8.36 |
| Density before age hardening (g/cm3): | 8.25 |
| Elastic Modulus (kg/mm2 (103)): | 13.4 |
| 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 |
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:
Why choose Cuberyllium Metal for beryllium copper alloy products?
We could offer a wide selection of Beryllium Copper Alloys.
Broad range of products and custom capabilities
Modern, state-of-the-art facilities and equipment
Beryllium Copper Alloys in Wholesale Price
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