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Chromium Zirconium Copper Alloys

Copper Alloys

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Chromium zirconium copper alloy is used in areas where good mechanical properties are required to work in high electrical and thermal conductivity. This is a high strength, seam, high conductivity alloy for spot, butt and projection welding which is ideal for plain as well as coated and galvanized sheets.

Standards
Chemical Composition
Mechanical Properties
T.S. Y.S.0.2 E % Hardness
M.P.A. M.P.A.    HRB
Min Min Min Min
Rods < Dia 40 490 390 8 75
Rods >Dia 40 400 350 10 68
Wheels/Forgings 350 260 15 65


Physical Properties
Density 8.9 g/cc
Thermal Conductivity : >0.77 cal/cm.cm²/s/°C
Electrical Conductivity : >75% IACS
Softening Temp. : 500°C

Nickel / Cobalt Beryllium Copper Alloys

Copper Alloys

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Nickel / Cobalt Beryllium Copper Alloy is a high strength alloy and is ideal for spot and seam projection welding of high temperatures and high strength stainless steel.

Standards
Indian Standard: IS 8365

International Standards
ASTM B 441 C-17510 C-17500 --
Din 17666 WN 2.09 2.13 appr.2.1285
ISO CuNi2 Be CuCo2Be CuCoiNibe
BS EN CW 104 C CW 110 C CW 103 C

Chemical Composition : (%)
NiBeCu CoBeCu CoNiBeCu
Ni= 1.4 -2.2 Co = 2.0-2.7 Co = 0.8-1.3
Be = 0.2 -0.6 Be = 0.4-0.7 Ni = 0.8-1.3
Cu = Balance Cu = Balance Bc = 0.4 -0.7
Cu = Balance

Physical Properties
Density 8.8g/cc
Thermal Conductivity >0.47 cal/cm.cm²/s/°C
Electrical Conductivity > 45% IACS
Softening Temp 500°C


Mechanical Properties
T.S. Y.S.0.2 E % Hardness
M.P.A. M.P.A.    HRB
Min Min Min Min
Rods < Dia 40 650 540 8 95
Rods > Dia 40 Wheels/Forgings 590 490 8 92

Beryllium Copper Alloys

Beryllium Copper Alloys

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Beryllium copper alloy is a high strength alloy with non-sparking and non-magnetic qualities. The alloy supports outstanding metalworking, forming and machining and is suitable for the shafts of seam welding machines, for electrode holders, inserts for dies and load bearing components.

Standards
Indian Standard : IS 8365

International Standards
ASTM B196 C-17200, DIN 17672 WN2.1247, ISO CuBe2, BS EN CW101C

Chemical Composition: (%)
Be = 1.8 -2.1
Co = 0.2-0.6
Cu = Balance


Physical Properties
Density 8.3 g/cc
Thermal Conductivity : >0.3 cal/cm.cm²/s/°C
Electrical Conductivity : > 22% IACS
Softening Temp. : 300°C


Mechanical Properties
T.S. Y.S.0.2 E % Hardness
M.P.A. M.P.A.    HRC
Min Min Min Min
1050 850 2 35

Tellurium Copper Alloys

Tellurium Copper Alloys

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Tellurium Copper Alloy is known for its high conductivity (90% IACS) and high machinability (90) which makes it ideal choice for making electrical parts that require extensive machining especially on automatic/CNC machines. Also, this range is highly suitable for gas nozzles and electrical components.

Standards

International Standards
ASTM B301 C-14500, DIN 17666 WN 2.1546, BS 2874 C 109, ISO CuTe, BS EN CW118C

Chemical Composition: (%)
Te = 0.3 -0.7
P = 0.004 -0.012
Cu = Balance


Physical Properties
Density 8.9 g/cc
Thermal Conductivity : >0.8 cal/cm.cm²/s/°C
Electrical Conductivity : > 85% IACS
Softening Temp. : 350°C


Mechanical Properties
T.S. Y.S.0.2 E % Hardness
M.P.A. M.P.A.    HRB
Min Min Min Min
260 200 8 33

Zirconium Copper Alloys

Zirconium Copper Alloys

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Zirconium Copper Alloy is a moderate strength, high conductivity alloy used for spot and seam welding of rotor bars & rings for electric motors, aluminum alloys & bronzes, switches and circuit breakers.

Standards

Indian Standard : IS 8365

International Standards : ASTM C-15000, DIN 17666 WN 2.1580, BS 2874 CW 120 C, ISO CuZr, BS EN CW120C

Chemical Composition
Zr = 0.1 - 0.3 %
Cu = Balance


Mechanical Properties
T.S. Y.S.0.2 E % Hardness
M.P.A. M.P.A.    HRB
Min Min Min Min
Rods < Dia 25 350 310 13 60
Rods >= Dia 25 300 250 20 55
Wheels/Forgings 200 160 45 40 R F


Physical Properties
Density 8.9 g/cc
Thermal Conductivity : > 0.80 cal/cm.cm²/s/°C
Electrical Conductivity : > 85% IACS
Softening Temp. : 500°C

Nickel Silicon Chromium Copper Alloys

Nickel Silicon Chromium Copper

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Nickel Silicon Chromium Copper has Higher strength but lower conductivity compared to CrZrCu. Suitable for spot, seam, projection welding particularly in stainless steel and high temp. and high strength steels. Properties and application of NiSiCrCu are same as Ni/CoBeCu but it is a beryllium free alloy.

Standards

Indian Standard : IS 8365

International Standards : ASTM C-18000, DIN 17666 WN 2.0855, BS EN CW 111C

Chemical Composition: (%)
Ni = 1.8 - 3.0
Si = 0.4 - 0.8
Cr = 0.1 - 0.8
Cu = Balance

Physical Properties
Density 8.8g/cc
Thermal Conductivity > 0.47 cal/cm.cm²/s/°C
Electrical Conductivity > 45% IACS
Softening Temp 500°C


Mechanical Properties
T.S. Y.S.0.2 E % Hardness
M.P.A M.P.A.    HRB
Min Min Min Min
Rods < Dia 40 650 540 8 95
Rods > Dia 40 Wheels/Forgings 590 490 8 92



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