We offer superior quality beryllium copper, chromium copper alloys, beryllium copper alloys, and tellurium copper alloys. These are high conductivity precipitated hardened copper alloys with better mechanical properties compared to pure copper. We offer these in electrodes, rods, bars, wheels and blocks form. Sizes of the products are as per customer's request.

• Chromium Zirconium Copper
• Nickel / Cobalt Beryllium Copper
• Nickel Silicon Chromium Copper
• Beryllium Copper
• Tellurium Copper
• Zirconium Copper

Forms :
Electrodes, Rods and Bars, Wheels, Blocks

Sizes :
As per customer request.

Chromium Zirconium Copper Alloys

A high strength, high conductivity alloy for spot, seam, butt and projection welding and electrical disconnectors, suitable for plain as well as coated & galvanized sheets.

Indian Standard : IS 8365

International Standards : ASTM C-18150, DIN 17666 WN 2.1293, BS 2874 CC 102, ISO CuCrZr, BS EN CW106C

Chemical Composition:

	Cr = 0.5 -1.2 %
	Zr = 0.03 -0.30%
	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 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

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Nickel / Cobalt Beryllium Copper Alloys

Has higher strength but lower conductivity compared to CrZrCu. Suitable for spot, seam projection welding particularly stainless steel and high.temp. high strength steels.

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

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2% Beryllium Copper Alloys

Has extensive hardness and strength comparable to steels with higher conductivity and softening temp. Beryllium Copper Alloys are suitable for electrode holders, shafts of seam welding machines, inserts for dies and load bearing components.

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

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Tellurium Copper Alloys

Has very high conductivity (90% IACS) and high machinability (90) making it suitable for electrical parts that require extensive machining particularly on automatic/CNC machines. Particularly suitable for gas nozzles and electrical components.

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

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Zirconium Copper

A moderate strength, high conductivity alloy for spot and seam welding of Aluminium Alloys & Bronzes, Rotor Bars & Rings for electric motors, switches & circuit breakers.

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

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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.

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