Cu–Alloy (bronze) or Copper Welding Wire refers to alloys based on copper combined with elements like aluminum, tin, or silicon, and sometimes reinforced with iron, nickel, or manganese. These high-performance alloys are widely used in shipbuilding, mining, pulp and paper, and chemical industries due to their wear resistance and low-friction welding surface.
They are generally classified into three categories:
- Pure copper
- Low-alloyed copper (up to 5% alloying elements)
- High-alloyed copper (more than 5% alloying elements)
Low-alloy options include copper blended with Ag, Mg, Zn, Pb, or Si, while high-alloy variants include brass (Zn), bronze (Sn), red bronze (Sn+Zn), nickel silver (Ni+Zn), or aluminum-based copper alloys. As a trusted Copper Wire for Welding – Importer & Manufacturer, we ensure these alloys meet the highest industry expectations for performance and durability.
Copper Welding Wires are also commonly preferred for welding specialized materials and exotic alloys such as manganese bronze, phosphorus bronze, copper-nickel alloys, and more—offering superior weld strength and corrosion resistance.
At Shree Kailaji Alloys Pvt Ltd, a leading Copper Wire for Welding – Importer & Manufacturer, we utilize advanced technology and stringent quality control processes to produce premium ALFA SS Wires for a wide range of welding applications. Along with our in-house manufacturing capabilities, we also work with several reputed global brands to offer customers a wide and reliable selection of copper welding solutions.
Our Portfolio for Copper Wires for Welding
| PRODUCT / BRAND | ALFA | AMPCO | ALUNOX GERMANY |
|---|---|---|---|
| ER CuNi 70/30 | ALFA 70/30 | – | – |
| ER CuNi 90/10 | ALFA 90/10 | – | – |
| ER CuSn-A | ALFA Phos Bronze | CuSn6 | |
| ER CUALA1 | ALFA Bronze A1 | AMPCO-TRODE 7 | CuAl8 |
| ER CUALA2 | ALFA Bronze A2 | AMPCO-TRODE 10 | CuAl9Fe |
| ER CUALA3 | ALFA Bronze A3 | AMPCO-TRODE 150 | CuAl12 |
| ER CUNIAL | ALFA Cu Bronze | AMPCO-TRODE 46 | CuAl8Ni6 |
| ER CuMnNiAl | ALFA CuMnNiAl | AMPCO-TRODE 40 | – |
| ER CU | ALFA Pure Copper | COPR-TRODE | CuSn |
| ER CuSi | ALFA CuSi | SIL TRODE | CuSi3 |
Applications of Copper Welding Wire
Copper welding wires are chosen for their strength, corrosion resistance, and smooth weldability. Major industries that depend on copper wires include:
Shipbuilding & Marine Engineering
Ideal for high-moisture environments due to natural anti-corrosive properties.
Mining & Heavy Machinery
Used for parts that require high friction resistance.
Pulp & Paper Industry
Perfect for equipment exposed to chemicals and abrasive materials.
Chemical and Petrochemical Plants
Ensures strong, leak-proof joints in aggressive environments.
Repair & Maintenance Welding
Suitable for restoring copper and bronze components.
Forms Available With Us
As a trusted Copper Wire for Welding – Importer & Manufacturer, we offer a wide selection of copper alloy wires to match diverse welding applications. Our portfolio includes:
ER CuNi 70/30
ER CuNi 90/10
ER CuSn-A (Phosphor Bronze)
ER CuAl A1 / A2 / A3
ER CuMnNiAl
ER Cu (Pure Copper)
ER CuSi (Silicon Bronze)
Industries We Serve
Our copper welding wires support critical operations across:
Why Choose Shri Kailaji Alloys?
Choosing the right supplier can make a big difference in weld quality, cost-efficiency, and overall productivity. At Shri Kailaji Alloys, we offer:
✔ Trusted Quality
Stringent quality checks ensure consistent composition and stable arc characteristics.
✔ Wide Alloy Range
Our copper wires include standard and specialty alloys for TIG, MIG, and more.
✔ Technical Expertise
We guide customers on selecting the right alloy based on project requirements.
✔ Reliable Supply Chain
As an importer & manufacturer, we ensure uninterrupted availability—even for bulk orders.
✔ Decades of Industry Presence
Since 1975, we have been a trusted name in welding & brazing consumables.
Frequently Asked Questions (FAQ)
It is used to weld copper, bronze, and other exotic alloys, mainly in marine, chemical, and heavy-duty industrial applications.
Selection depends on base metal composition, mechanical requirements, corrosion exposure, and welding process (TIG/MIG).
Yes. We handle bulk orders with reliable stock availability and timely delivery.
Marine engineering, mining, chemical plants, automotive, and fabrication industries.
Absolutely. All our wires comply with international welding standards to ensure safety and performance.
Request a Quote for Premium Copper
Looking for a trusted Copper Wire for Welding – Importer & Manufacturer?
Contact us for premium-quality copper welding wires, expert guidance, and dependable supply—tailored to your industry needs.
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