C17200 Beryllium Copper Alloy 25 Platre With 2m Length Used In
Chemical Industries
Product Normal Description:
Product Name: Beryllium copper alloy plate
Grade: C17200/ Alloy 25
Standard: ASTM B194 / ASME SB194
Product Length: 2m
State: TF00
Typical Application: For chemical industries
Product Brand: CUBERYLLIUM®
About Standard ASTM B194:
ASTM or American Society for Testing and Materials is an
international standard developing an organisation. It develops and
designs various standards which are useful and beneficial for
multiple industrial applications. To improve performance and to get
satisfying output in manufacturing, this organisation defines some
standards. ASTM B194 is one of the standards which specifies the
requirements of Copper-Beryllium alloy Plate, Sheet, Strip, And
Rolled Bar.
We are producing and supply Copper-Beryllium Plate, Sheets, Strips,
and Bars. By considering requirements and demands of our clients,
we are manufacturing perfectly suitable products. We aim to deliver
the highest quality Copper-Beryllium Plate, Sheets, Strips, and
Bars within decided time and at reasonable rates. We are
fabricating Copper-Beryllium Plates in multiple size and dimensions
as per the requirements of clients. Our Copper-Beryllium Plates has
High strength, hardness, and elasticity which offers superior
resistance to fatigue and abrasion. These plates are applicable in
relays, connectors, sensors, temperature control switch, and
thermostat spring. We are producing a wide range of
Copper-Beryllium Sheets by using latest technologies and using the
finest quality components.
Chemical Composition of C17200 Beryllium Copper Alloy 25:
Product Grade: CUBERYLLIUM ®-172(UNS. C17200)
Be: 1.8-2.0
Co+Ni: 0.2 Min
Ni+ Co+ Fe: 0.6 Max
Si: 0.20 Max
Al: 0.20 Max
Cu: Balance
Note: Copper plus additions equal 99.5% Minimum.
Typical Physical Properties of C17200 Beryllium Copper Alloy 25:
| Grade | Density (g/cm3) | Density before age hardening (g/cm3) | Elastic Modulus (kg/mm2 (103)) | Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C) | Thermal Conductivity (cal/(cm-s-°C)) | Melting Range (°C) |
| C17200 | 8.36 | 8.25 | 13.40 | 17 x 10-6 | 0.25 | 870-980 |
| Temper Designations of C17200 Beryllium Copper Alloy 25 Plate: | A(TB00) |
| 1/4H (TD01) |
| 1/2H (TD02) |
| H (TD04) |
| AT (TF00) |
Product Photos:
The most important Technology of CUBERYLLIUM ®
A: 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.
B: Solution Annealing
For the typical alloy CuBe1.9 (1.8- 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 ohmalloy.
C: 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.
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