Premier Ingots & Metals has evolved itself as a manufacturer & exporter of premium quality resistance welding alloys like resistance welding electrodes, spot welding electrodes, seam welding electrodes & wheels, butt welding & projection welding blocks, which are manufactured by using high copper alloys such as Chromium Copper Rods / Alloys, Chromium Zirconium Copper Alloys, Beryllium Copper Alloys, Tellurium Copper Alloys and Nickel Silicon Chromium Copper Alloys.
Our highly durable Resistance Welding Alloys are available in the form of rods, bars, wheel, forgings, caps tips and electrodes that fulfill the needs & wants of different industrial and engineering applications like automotive, cycle, electrical and sheet metal.

Alloys – We manufacture:

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

Forms – We manufacture:

• Electrodes
• Rods
• Bars
• Wheels
• Tips
• Blocks
• Flats
• Wires

 

Sizes Available: As per the client’s specific requirements.

Premier Ingots manufactures Spot welding electrodes in the form of rods & tips, which are made from cold drawn, precipitation-hardened stock and have very high strength & conductivity to delay mushrooming effect and dressing stops. Our spot welding electrodes are available in all our copper alloys.


We offer a wide range of seam welding electrodes & wheels, which are manufactured by forged & age hardened blanks. Our seam welding electrodes / wheels have very high strength that allows the usage below very high pressure without deformation & cracking that ensures the long life of our welding electrodes. Our seam welding electrodes & wheels are available in all our copper alloys with all diameters & thickness.


We manufacture butt welding & projection welding blocks & shafts, which are made of forging and Age hardening to prevent frequent replacements and to provide maximum life to our electrodes. Our butt welding & project welding blocks / shafts are available in different sizes having upto 50 Kg. weight.


Our Holder, Adapters & Shanks are made in Copper Chromium Zirconium Alloys and Copper Cobalt Nickel Beryllium Alloys out of extruded and drawn rods in Age-hardened temper. Bent shapes are made on hydraulic press. The properties of drawn rods are same as the achieved properties.

TECHNICAL SPECIFICATIONS:

Alloy	RWMA CLASS	ASTM UNS NO.	COMPOSITION %	HARDNESS (Rockwell)	ELECTRICAL CONDUCTIVITY % IACS
0.5% Te-Cu		C-14500	Te : 0.4 to 0.6 P : 0.004 to 0.012 Cu : Balance	32 - 42 RB	85 - 95
ZrCu	Class-2	C-15000	Zr : 0.1 to 0.3 Cu : Balance	Forgings : > 40 RF Rods & Bars : > 60 RB	85 -9 5
CrZrCu	Class-2	C-18150	Cr : 0.5 to 1.2 Zr : 0.03 to 0.3 Cu : Balance	Rods > Dia 40 and Forgings :65 - 80 RB Rods < dia 40: 75 -90 RB	75 - 85
CoNiBeCu	Class-3	B.S.2874 CW103C	Be : 0.4 to 0.7 Co : 0.8 to 1.3 Ni : 0.8 to 1.3 Cu : Balance	Rods > Dia 40 and Forgings : 92-100 RB Rods < Dia 40: 95 -102RB	45 - 55
NiBeCu	Class-3	B 441 : C-17510	Be : 0.2 to 0.6 Ni : 1.4 to 2.2 Cu : Balance	Rods > Dia 40 and Forgings : 92-100 RB Rods < Dia 40 : 95-102RB	45 - 55
CoBeCu	Class-3	B 441 : C-17500	Be : 0.4 to 0.7 Co : 2.0 to 2.7 Cu : Balance	Rods > Dia 40 and Forgings : 92-100 RB Rods < Dia 40: 95-102 RB	45 - 55
NiSiCrCu	Class-3	C-18000 C-64700	Ni : 1.6 to 2.6 Si : 0.5 to 0.8 Cr : 0.1 to 0.8 Cu : Balance	Rods > Dia 40 and Forgings : 90-100RB Rods < Dia 40: 92-102RB	40 - 55
BeCu	Class-4	C-17200	Be : 1.8 to 2.0 Co : 0.2 to 0.6 Cu : Balance	36 - 41 RC	22 - 28

Our Nickel / Cobalt Beryllium Copper Alloys have higher strength but lower conductivity as compared to CrZrCu, which are suitable in spot, seam projection welding particularly in stainless steel and high Temperature & high strength steels.

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

Indian Standards : IS 8365

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

Electrical Conductivity :	> 45% IACS
Thermal Conductivity :	>0.47 cal/cm.cm²/s/°C
Density :	8.8g/cc
Softening Temperature :	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

2% Beryllium Copper Alloys

We established ourselves as a renowned manufacturer & exporter of Beryllium Copper Alloys, which have extensive hardness and strength with higher conductivity and softening Temperature as compared to steels. Our Beryllium Copper Alloys are suitable for electrode holders, shafts of seam welding machines, inserts for dies and load bearing components.

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

Indian Standard : IS 8365
Chemical Composition: (%)

Be = 1.8 -2.1
Co = 0.2-0.6
Cu = Balance

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

Physical Properties:

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