Splatter Free Welding

Welding with Splatter

Consistent, Even Welds

Safer & Cleaner Environment

Less PPE + Safety Gear Costs

Increased Production Up-time

Low Consumable Equipments

No Rework from Jagged Welds

Reduced Power Consumption

DID YOU KNOW?

01.

SPLATTER MATTERS

Weld spatter occurs when small liquid particles are expelled from the surface of materials being welded due to pressure and heat. This molten metal causes many problems: degraded weld quality, higher downtime, more cleaning, and significant electricity costs.

DID YOU KNOW?

02.

THE COLD-FORMING ADVANTAGE

With over 50 years of experience, Luvata has perfected the production of resistance spot welding electrodes using extremely pure, oxygen-free alloys with no phosphorus. Our cold-forming process ensures high purity, consistency, strength, reduced waste, and increased efficiency. It also increases electrode strength. The result: every electrode in a production lot is exactly the same.

DID YOU KNOW?

03.

CUSTOMIZED IS THE STANDARD

Luvata produces resistance spot welding electrodes in all shapes and sizes to fit the customer’s exact specifications. We strictly adhere to ISO, Asian, and RWMA standards. Our standard sizes include 13, 16, and 20mm with custom sizes also available. For alloys, we offer high quality copper alloys including:
Copper Chrome Zirconium (CuCrZr) = A-Trode®
Copper Zirconium (CuZr) = Z-Trode®
Dispersion Strengthened Copper (DSC) = Nitrode® and Cupal®

DID YOU KNOW?

04.

THE GLOBAL OEMS’ CHOICE

Resistance Spot Welding Electrodes for Automotive Manufacturers
Luvata resistance spot welding electrodes are trusted by all automotive OEMs and Tier suppliers globally — serving anyone who produces vehicles or vehicle parts. Our welding caps are also essential in the white goods industry for resistance welding applications. Whether for robotic or manual welding guns, our electrodes deliver unmatched performance.

SPOT WELDING ELECTRODES

A-Trode®

The universal cap electrode for resistance welding of light-to-medium gauge coated and uncoated steels.

Produced by Luvata’s proprietary billet casting process, A-Trode’s freedom from oxygen allows us to alloy the copper with the optimum levels of chrome and zirconium. Electrodes are cold headed or machined to suit the required shape. Luvata has a long history of supplying high quality CuCrZr (A-Trode) electrodes.

Alloy: Copper Chrome Zirconium (CuCrZr)

Quality Specifications

Alloy

C18150 CuCrZr, EN ISO 5182 A2/2, DIN 17666 Wn 2.1293, RWMA Class II

Chemical composition

Cr 0.7% to 1.2%, Zr 0.06% to 0.15%. Others max. 0.2%, Cu balance

Physical material properties at 20°C

Mass: 8.9g/cm³
Specific heat: 376 J/kg.K
Thermal conductivity: 320 W/m.K
Expansion coefficient (20-300°C): 17.0 x 10-6 m/mK
Electric conductivity: min. 43 S/m (solution annealed and hardened) min 74% IACS
Softening temperature: min. 500°C

Dimensions and tolerances

To ISO 5821 or other standards as required. Special electrodes to customer drawing

Packaging

Most items in cartons of 500 pieces

Documentation

Acceptance test certificate EN 10204 3.1 B possible if desired against a charge

Area of application

Male and female resistance welding electrodes; Backing dies – series and indirect; Seam welding wheels; Projection welding electrodes

Mechanical Specifications – Quality

Form of supply

Tensile strength [N/mm2]

0.2% Offset yield strength [N/mm2]

Elongation AS [%]

Hardness

Electrodes

≥ 490

≥ 430

≥ 15

≥ 172

Physical Properties

Hardness at ambient temperature

Minimum 80 HRB

Conductivity

Minimum 80% IACS

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SPOT WELDING ELECTRODES

Z-Trode®

Z-Trode® is the ideal cap electrode for resistance welding of light-to-medium gauge coated and uncoated steels and aluminum alloys. It is the electrode of choice for customers looking to reduce spatter in welding. Made from zirconium copper, the welding electrode cap outperforms conventional electrodes.

Alloy: Copper Zirconium (CuZr)

Advantages:

Prevents sticking
Requires less energy
Resists mushrooming
Reduces downtime

Traceability

All materials are fully traceable. Z-Trode electrodes can be recognized by their flats around the periphery of the electrode cap.

Quality Specifications

Alloy

C15000 CuZr, EN ISO 5182 A2/4, DIN 17666 Wn 2.1580, RWMA Class I

Chemical composition

Zirconium 0.15% Cu balance

Physical material properties at 20°C

Mass:  8.89g/cm3
Specific heat:  385 J/kg.K
Thermal conductivity:  367 W/m.K
Expansion coefficient (20-300°C):  16.9 x 10-6 m/mK
Electric conductivity:  min. 53 S/m
Solution-annealed and hardened:  min. 92% IACS
Softening temperature:  1083°C

Dimensions and tolerances

To ISO 5821 or other standards as required. Special electrodes to customer drawing.

Packaging

Most items in cartons of 500 pieces

Documentation

Acceptance test certificate EN 10204 3.1 B possible if desired against a charge.

Area of application

Male and female resistance welding electrode
Backing dies – series and indirect
Projection welding electrodes

Mechanical Properties

Form of supply

Tensile strength [N/mm2]

0.2% Offset yield strength [N/mm2]

Elongation AS [%]

Hardness

Electrodes

≥ 420

≥ 379

≥ 12

≥ 132

Physical Properties

Hardness at ambient temperature

Minimum 65 HRB

Conductivity:

Minimum 85% IACS

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SPOT WELDING ELECTRODES

Nitrode®

Nitrode® is a cold-formed alloy of dispersion strengthened copper with aluminum oxide. Nitrode® demonstrates superior weld performance on a variety of steels. It resists mushrooming on the contact surface, allowing more welds before tip dressing, heat stepping or tip change.

No other cap electrode matches Nitrode® for cost-effective, high-quality performance in resistance welding. It consistently outperforms copper chrome and copper chrome zirconium electrodes by resisting annealing. All Nitrode® materials are traceable and can be recognized by their single knurl markings.

Benefits

Longer weld life
Non-stick
Reduces energy requirements
Works on all steels
Lowers manufacturing costs

Quality Specifications

Alloy

C15760 CuAl2O3, EN ISO 5182 C20/1, RWMA Class 20

Chemical composition

Aluminum 0.60% by weight as Al2O3 Cu balance

Physical material properties at 20oC

Density: 8.81g/cm3
Thermal conductivity: 322 W/m.K
Expansion coefficient (20-150°C): 16.6 x 10-6 m/mK
Electric conductivity: 78% IACS
Softening temperature: 1083°C

Dimensions and tolerances

To ISO 5821 or other standards as required. Special electrodes to customer drawing.

Packaging

Most items in cartons of 500 pieces

Documentation

Acceptance test certificate EN 10204 3.1 B possible if desired against a charge.

Area of application

Male and female resistance welding electrode
Backing dies – series and indirect
Projection welding electrodes

Mechanical Properties

Form of supply

Tensile strength
MPa

Yield strength
MPa

Elongation
[%]

Hardness
HV

Electrodes

489 – 537

393 – 441

18 – 23%

160

Physical Properties

Hardness at ambient temperature:

83 HRB

Conductivity:

78% IACS

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SPOT WELDING ELECTRODES

H-Trode®

Luvata has developed H-Trode®, a very high purity copper alloy ideal for resistance welding of 5000, 6000, and 7000 grade aluminum components. The combination of advanced copper metallurgy and cold-forming technology delivers an electrode that outperforms conventional options when welding aluminum.

The superior conductivity of H-Trode® ensures maximum electrical resistance stays between the aluminum sheets. This reduces the heat generated between the sheets and electrode, which in turn reduces sticking.

Benefits

Compatible with conventional spot welding equipment
Increased productivity
Cost-effective electrode for aluminium welding
High conductivity
Non-stick properties

Compatible with Conventional Spot Welding Equipment

Alternative welding solutions have been developed for aluminum, but equipment is expensive, large and more difficult to implement than conventional spot welding. H-Trode® electrodes enable stable spot welding of aluminum alloys using conventional spot welding equipment.

Increased Productivity

Compared with alternative joining methods, spot welding using H-Trode® electrodes and standard dressing equipment significantly increases productivity.

Most Cost Effective Electrode for Aluminum Welding

H-Trode®’s increased life expectancy, maintenance savgins and consistent quality welds assure you the highest return on your investment for welding aluminum.

Physical Properties

All H-Trode® electrodes are cold worked and most items are fully cold formed to ensure the maximum hardness. H-Trode® has a high-conductivity of minimum 92% IACS.

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WELDING WIRE

MIG & Laser Brazing Wire: Luvaweld®

MIG & laser brazing wire Luvaweld® is our seamless and high-strength welding wire. Designed for optimal performance, Luvaweld® ensures a tangle-free and smooth production process.

For over a decade, Luvaweld® has been the trusted choice for automotive factories worldwide. Our wires deliver exceptional brazing performance, resulting in a clean surface, reduced spatter, and enhanced strength. They are available in a range of specifications, dimensions, and packaging options to meet your welding needs. Free from joints, they offer tangle-free feeding, minimizing production issues and ensuring consistent quality with every drum.

Applications: MIG Brazing, Laser Brazing

Alloys & Dimensions

Luvata’s welding wire has consistent casting, diameter and helix. We manufacture welding wire for MIG and laser brazing in various thicknesses from 15 kg spools to over 200 kg drums. All spools are precision-wound.

Our alloy options include:

Silicon Bronze (Luvaweld® S1)
Aluminium Bronze (Luvaweld® A1, A2)
Deoxidized Copper (Luvaweld® DX)

Technical Support in Welding Wire Products

Our customers span all continents, from small companies to major manufacturers. With decades-long relationships built on trust and quality, we serve the needs of automotive companies pan India. We are known for the technical support we offer to all our customers and our experienced welding wire specialists provide tailored solutions, on site assistance and exceptional technical support to meet your specific needs.

Technical Specifications

Alloy

Aluminum Bronze

Silicon Bronze

Deoxidized Copper

CDA

C61000

C65600

C61800

Din 1733

SG-CuAl8

SG-CuSi3Mn

SG-CuAl10Fe

Material No.

2.0921

2.1461

2.0937

EN 14640

CuAl8

CuSi3Mn

CuAl10Fe

BS2901 part 3

C 28

C 9

C 13

AWS A 5.7

ER CuAl-A1

ER CuSi-A

ER CuAl-A2

Electrical conductivity
(S*m/mm2)

3-4

Density (kg/dm³)

7,7

8,5

7,5

Solidus-Temperature (°C)

1030

910

1030

Liquidus-Temperature (°C)

1040

1025

1090

Tensile strength Rm (MPa)

390-450

330–370

390–500

Hardness (HB)

140

80-90

140

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We shape copper which shapes the world.

Welding Products

Resistance Spot Welding Electrodes

MIG & Laser Brazing Wire

Welding Contact Tips

Projection Welding Electrodes

Seam Weld Wheels

Seam Weld Wheels

A-Trode®

Quality Specifications

Mechanical Specifications – Quality

Physical Properties

Z-Trode®

Traceability

Quality Specifications

Mechanical Properties

Physical Properties

Nitrode®

Benefits

Quality Specifications

Mechanical Properties

Physical Properties

H-Trode®

Benefits

Compatible with Conventional Spot Welding Equipment

Increased Productivity

Most Cost Effective Electrode for Aluminum Welding

Physical Properties

MIG & Laser Brazing Wire: Luvaweld®

Alloys & Dimensions

Technical Support in Welding Wire Products

Technical Specifications

Catalogs and Media

We shape copper which shapes the world.

Resistance Spot Welding Electrodes

MIG & Laser Brazing Wire

Welding Contact Tips

Projection Welding Electrodes

Seam Weld Wheels

Seam Weld Wheels

A-Trode®

Quality Specifications

Mechanical Specifications – Quality

Physical Properties

Z-Trode®

Traceability

Quality Specifications

Mechanical Properties

Physical Properties

Nitrode®

Benefits

Quality Specifications

Mechanical Properties

Physical Properties

H-Trode®

Benefits

Compatible with Conventional Spot Welding Equipment

Increased Productivity

Most Cost Effective Electrode for Aluminum Welding

Physical Properties

MIG & Laser Brazing Wire: Luvaweld®

Alloys & Dimensions

Technical Support in Welding Wire Products

Technical Specifications

Catalogs and Media

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