DIN.2.1248 Beryllium Bronze Round Wires With Weldability, Corrosion Resistance, Polishability

Product Description:

Product Name: Beryllium bronze round wires

Grade: DIN.2.1248

State: A(TB00),1/4 H(TD01),1/2 H(TD02),3/4H(TD03),H(TD04)

Available Products(Forms): round wires, flat wires, coils

Size: Custom Diameter & Size, Random Mill Lengths

Brand: CUBERYLLIUM®

Chemical Composition of DIN.2.1248 Beryllium Bronze Alloys:

Be: 1.8-2.0%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Lead: 0.20-0.60%
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.

Related Standards:

Rods/Bars/Tubes: ASTM B196, QQ-C-530
Wires: ASTM B197, QQ-C-530,

Plates: ASTM B194

European Standards: DIN 2.1248, CW102C to EN

Typical Physical Properties of DIN.2.1248 Beryllium Bronze Alloys:

Mechanical and Electrical Properties of DIN.2.1248 Beryllium Bronze Round Wires:

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.

Fabrication

Product Photo:

FAQ:

Q1:Could you produce Beryllium Copper strip by Mill Hardened process.
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 Furnace.

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, Grain Refinement

Q4: What's the payment terms?
A4: We accept T/T, L/C, Paypal etc. It can be negotiated when the amount is different.