RWMA Class 4 C172 Beryllium Copper Wiring TD03 Or TD04 Temper

Place of Origin China
Certification ISO ROHS
Model Number RWMA Class 4 C172
Minimum Order Quantity 30kg
Price USD 25-30/KG
Packaging Details Pack in coil+waterproofing winding film+Drier+Wooden Case
Delivery Time 10~15 Working days
Payment Terms L/C, T/T, Western Union
Supply Ability 50T/Month

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Product Details
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
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Class 4 C172 beryllium copper wiring


TD04 Temper beryllium copper wiring

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Product Description

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:

RWMA Class 4 C172 Beryllium Copper Wiring TD03 Or TD04 Temper 0


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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