Soft State Beryllium Copper Tape C17200 by ASTM B194 Used For
Product Normal Description:
Product Name: Beryllium copper tape
Product Form: Beryllium Copper Strip
Product Specification: 0.2x25mm, 0.25x100mm, 0.25x26mm, 0.25x8.2mm,
0.25x9.5mm, 0.3x200mm, ect.
State: Soft State
Application: Electrical Switch
Product Brand: CUBERYLLIUM®
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). Also Supply Master alloy : CuBeryllium-200;
CuBeryllium-275);CuBeryllium-350 and Cuberyllium-400 to global
CUBERYLLIUM ®-172 also named Cube2--C17200 (CDA 172).
C17200 (Alloy 25) is a high performance alloy.
C17200 Beryllium Copper is manufactured to provide a combination of
high strength and hardness properties coupled with superior thermal
properties. This range of properties makes C17200 Beryllium Copper
the premier material for copper alloy molds and a wide range of
other applications from oil and gas to aerospace.
|Cuberyllium-C172||C17200||1.80-2.00||0.20 min||0.6 max||0.02 max||Balance|
Typical Physical Properties of CUBERYLLIUM ®-172(Beryllium Copper Strip C17200):
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
Temper Designations of CUBERYLLIUM ®-172: State Solution Annealed (TB00)
|CuBeryllium Designation||ASTM||Mechanical and Electrical Properties of Copper Beryllium Strip|
|Yield Strength 0.2% offset||Elongation Percent||HARDNESS|
B or C Scale
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.
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.
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
|over||incl.||plus or minus|
|Note: Tolerances apply to rolled and mill hardened strip.|
Application of CUBERYLLIUM ®-172:
CUBERYLLIUM ®-172 usually used for electrical industry, fasteners
Electrical Industry: electrical switch and relay blades(switch parts, relay parts),
clips, fuse clips, connectors, spring connectors, navigational
indstruments, contact bridges, belleville washers;
Fasteners: washers, lock washers, fasteners, retaining rings, roll pins,
Industrial: pump parts, springs, electrochemical, spline shafts, non sparking
safety tools, flexible metal hose, housings for indtruments,
bearings, bushings, valve seats, valve stems, disphragms, springs,
welding equipment, rolling mill parts, valves, bourdon tubes, wear
plates on heavy equipment, bellows.
Q1:Could you produce Beryllium Copper strip by Mill Hardened
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
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,
Q4: What's the payment terms?
A4: We accept T/T, L/C, Paypal etc. It can be negotiated when the
amount is different.