Brand Name : CUBERYLLIUM®
Model Number : RWMA Class 4 C172
Certification : ISO ROHS
Place of Origin : China
MOQ : 30kg
Price : USD 25-30/KG
Payment Terms : L/C, T/T, Western Union
Supply Ability : 50T/Month
Delivery Time : 10～15 Working days
Packaging Details : Pack in coil+waterproofing winding film+Drier+Wooden Case
Name : beryllium copper wiring
CUBERYLLIUM® Grade : CUBERYLLIUM® 172
Diameter : 0.1-1.0mm
Temper : A(TB00), 1/4H(TD01), 1/2H(TD02), 3/4H(TD03, H(TD04)
Surface : Bright
Typical Application : Coil springs
Shape for available : Rod or Coil Wire
Package : in Coils
ASTM : ASTM B197
Application : For Spring Industry
RWMA Class 4 C172 beryllium copper wiring TD03 or TD04 Temper
|Material Grade||RWMA Class 4 C172|
|Other Designate||UNS.C17200, CuBe2, CW101Cm, DIN 2.1247, AMS 4533|
|End Product Form||Wiring, Round Wire|
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:
Typical Physical Properties of RWMA Class 4 C172 Beryllium Copper Alloy:
|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.
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 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.
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
Shipping Beryllium Copper Alloys worldwide & fast delivery
RWMA Class 4 C172 Beryllium Copper Wiring TD03 Or TD04 Temper Images