Welding wires for steel

welding wire SPARTUS ER70S-6 [SG2]
Copper-coated electrode wire with added manganese and silicon for MIG/MAG welding, designed for welding carbon steels and certain low-alloy steels. Ideal for use with CO₂ shielding gas or mixed shielding gases.
SPARTUS ER70S-6 welding wire offers:
- High weld quality – ensures durable and aesthetic joints.
- Corrosion protection – the thin and uniform copper coating protects the wire against rust, extending its lifespan.
- Improved electrical conductivity – the copper coating provides a stable welding arc.
- Versatility – compatible with different shielding gases, making it suitable for various base material thicknesses.
Applications across many industries:
- Steel construction – for building steel structures.
- Shipbuilding industry – ideal for welding ship components and other marine structures.
- Machinery industry – suitable for machine and equipment manufacturing.
- Tank and boiler production – appropriate for welding parts exposed to high pressure and temperature.
- Automotive industry – dedicated to joining steel components in vehicles.
Standards:
EN 13479
EN ISO 14341-A-G 3Si1
AWS A5.18 ER70S-6
Approvals: TÜV, DB
WIRE DIAMETER | ![]() SZPULA ⌀100 1kg | ![]() SZPULA ⌀200 5kg | ![]() SZPULA ⌀300 15kg |
|---|---|---|---|
| 0.8mm | M-ER70S-6-08-S100 | M-ER70S-6-08-S200 | M-ER70S-6-08-B300 |
| 1.0mm | M-ER70S-6-10-S100 | M-ER70S-6-10-S200 | M-ER70S-6-10-B300 |
| 1.2mm | – | M-ER70S-6-12-S200 | M-ER70S-6-12-B300 |
Welding wires for stainless steel

Welding wire SPARTUS 308LSi
SPARTUS 308LSi is a high-quality welding wire made from low-carbon stainless steel. It is ideal for MIG welding of austenitic steels such as AISI 301, 302, 304, 304L, 308, and 308L, as well as 18% Cr / 8% Ni type steels.
Key properties:
- Excellent corrosion resistance – ensures durable and safe welds.
- Good mechanical properties – guarantee high strength and reliability of joints.
- Resistance to intergranular corrosion – protects against corrosive attack when in contact with various liquid media.
Applications:
- Pipeline work – reliable for joining pipeline components.
- Plate prefabrication and tank production – ideal for constructions requiring high precision.
- Multiple industrial applications – wide range of uses where high corrosion resistance is required.
Standards:
EN 13479
EN ISO 14343-A-G 19 9 LSi
AWS A5.9 / ASME SFA5.9 ER 308LSi
Approvals: TÜV, DB
| WIRE DIAMETER | ![]() SPOOL ⌀100 1kg | ![]() SPOOL ⌀200 5kg | ![]() SPOOL ⌀300 15kg |
|---|---|---|---|
| 0.8mm | M-308LSI-08-S100 | M-ER70S-6-08-S200 | M-308LSI-08-B300 |
| 1.0mm | M-308LSI-10-S100 | M-308LSI-10-S200 | M-308LSI-10-B300 |
| 1.2mm | M-308LSI-12-S100 | M-308LSI-12-S200 | M-308LSI-12-B300 |

Welding wire SPARTUS ER316LSi
SPARTUS 316LSi is a high-quality welding wire designed for welding stainless steels. Thanks to its unique properties, it is widely used in various industrial and food-processing applications.
Key features:
- Smooth weld bead shape – ensures an aesthetic and uniform finish.
- Excellent toe transitions – particularly visible in fillet welds.
- Higher silicon content – improves weld quality and final appearance.
Applications:
- Wide range of industrial applications – ideal for projects requiring durable and visually appealing welds.
Standards:
EN 13479
EN ISO 14343-A-G 19 12 3 LSi
AWS A5.9 / ASME SFA5.9 ER 316LSi
Approvals: TÜV, DB
| WIRE DIAMETER | ![]() SPOOL ⌀100 1kg | ![]() SPOOL ⌀200 5kg | ![]() SPOOL ⌀300 15kg |
|---|---|---|---|
| 0.8mm | M-316LSI-08-S100 | M-316LSI-08-S200 | M-316LSI-08-B300 |
| 1.0mm | M-316LSI-10-S100 | M-316LSI-10-S200 | M-316LSI-10-B300 |
| 1.2mm | M-316LSI-12-S100 | M-316LSI-12-S200 | M-316LSI-12-B300 |

Welding wire SPARTUS ER309LSi
SPARTUS 309LSi is a high-quality welding wire designed for welding stainless steels with low-carbon and medium-strength steels.
Key properties:
- Versatility – suitable for a wide range of industrial applications.
- Durability and resistance – guarantees strong and long-lasting joints.
- Precision – ensures high-quality welds even under demanding conditions.
Applications:
- Joining different types of steels – reliable for welding stainless steels with carbon and medium-strength steels.
- Intermediate layers – ideal for creating buffer layers on steel before welding with 308-class stainless steel.
- Clad steel welding – effective in applications operating at temperatures up to 300°C.
Standards:
EN 13479
EN ISO 14343-A-G 23 12 LSi
AWS A5.9 / ASME SFA5.9 ER 309LSi
Approvals: TÜV, DB
| WIRE DIAMETER | ![]() SPOOL ⌀100 1kg | ![]() SPOOL ⌀200 5kg | ![]() SPOOL ⌀300 15kg |
|---|---|---|---|
| 0.8mm | M-309LSI-08-S100 | M-309LSI-08-S200 | M-309LSI-08-B300 |
| 1.0mm | M-309LSI-10-S100 | M-309LSI-10-S200 | M-309LSI-10-B300 |
| 1.2mm | M-309LSI-12-S100 | M-309LSI-12-S200 | M-309LSI-12-B300 |
Welding wires for aluminum

Welding wire SPARTUS AlMg4,5Mn ER5183
SPARTUS AlMg4.5Mn ER5183 welding wire is a high-quality product designed for welding 5000 series aluminum-magnesium alloys. With excellent mechanical properties, high corrosion resistance, and durability in harsh environmental conditions, it is an ideal choice for industrial and structural applications.
Advantages:
- Professional weld quality in demanding projects.
- Exceptional resistance to harsh environmental conditions.
- Versatile applications across different industries.
Key features:
- Magnesium content – ensures excellent mechanical properties and high strength.
- Corrosion resistance – ideal for corrosive environments, especially in the marine industry.
- Aesthetic welds – creates smooth and durable joints with a professional appearance.
- Stable welding arc – easy application and precise process control.
Applications:
- Aluminum-magnesium welding – especially recommended for high-magnesium alloys such as 5083, 5654, and similar.
- Marine structures – ideal for welding components exposed to seawater and humidity.
- Industrial production – widely used in shipbuilding, transportation, and construction industries.
- Repairs and refurbishments – effective for repairing aluminum structures with high strength requirements.
Standards:
EN 13479
EN ISO 18273-S Al 5183
SFA/AWS A5.10:R5183
Approvals: DB
| WIRE DIAMETER | ![]() SPOOL ⌀100 0.45kg | ![]() SPOOL ⌀200 2kg | ![]() SPOOL ⌀300 7kg |
|---|---|---|---|
| 0.8mm | M-5183-08-S100 | M-5183-08-S200 | – |
| 1.0mm | M-5183-10-S100 | M-5183-10-S200 | M-5183-10-S300 |
| 1.2mm | – | M-5183-12-S200 | M-5183-12-S300 |

Welding wire SPARTUS AlMg5 ER5356
SPARTUS AlMg5 ER5356 welding wire is a high-quality product designed for welding aluminum and aluminum-magnesium alloys. Its excellent mechanical properties and corrosion resistance make it an ideal choice for many industrial applications.
Advantages:
- Easy application and high arc stability.
- Exceptional durability in harsh working conditions.
- Professional results in demanding projects.
Key features:
- Magnesium content – ensures high mechanical strength and corrosion resistance.
- Excellent weld quality – smooth, aesthetic, and durable joints.
- Corrosion resistance – ideal for use in marine and humid environments.
Applications:
- Welding aluminum-magnesium alloys – particularly useful for 5000 series alloys.
- Aluminum structure production – used in construction, automotive, shipbuilding, and aerospace industries.
- Components exposed to corrosive environments – perfect for structures operating under harsh atmospheric conditions.
Standards:
EN 13479
EN ISO 18273-S Al 5356
SFA/AWS A5.10:ER5356
Approvals: DB
| WIRE DIAMETER | ![]() SPOOL ⌀100 0.45kg | ![]() SPOOL ⌀200 2kg | ![]() SPOOL ⌀300 7kg |
|---|---|---|---|
| 0.8mm | M-5356-08-S100 | M-5356-10-S200 | – |
| 1.0mm | M-5356-10-S100 | M-5356-10-S200 | M-5356-10-S300 |
| 1.2mm | M-5356-12-S100 | M-5356-12-S200 | M-5356-12-S300 |

Welding wire AlSi5 ER4043
SPARTUS AlSi5 ER4043 welding wire is a high-quality product designed for welding aluminum alloys containing silicon. Thanks to its excellent mechanical and aesthetic properties, this wire is widely used for aluminum welding across various industries.
Advantages:
- Professional quality for demanding projects.
- Excellent mechanical and aesthetic properties of welds.
- Versatility – suitable for a wide range of industrial application.
Key features:
- Silicon content – reduces the risk of cracking and improves mechanical properties.
- Smooth and aesthetic welds – perfect for projects requiring a high-quality finish.
- Easy welding – ensures a stable arc and simple application.
- Corrosion resistance – suitable for structures operating in harsh environmental conditions.
Applications:
- Spawanie stopów aluminium-krzem – idealny do materiałów z serii 4000 i 6000.
- Produkcja przemysłowa – stosowany w branży motoryzacyjnej, lotniczej, budowlanej i stoczniowej.
- Konstrukcje narażone na trudne warunki atmosferyczne – zapewnia trwałe i odporne połączenia.
- Naprawy i regeneracje – niezawodny w pracach związanych z naprawą elementów aluminiowych.
Standards:
EN 13479
EN ISO 18273-S Al 4043A
SFA/AWS A5.10:R4043
Approvals: DB
| WIRE DIAMETER | ![]() SPOOL ⌀100 0.45kg | ![]() SPOOL ⌀200 2kg | ![]() SPOOL ⌀300 7kg |
|---|---|---|---|
| 0.8mm | M-4043-08-S100 | M-4043-08-S200 | – |
| 1.0mm | M-4043-10-S100 | M-4043-10-S200 | M-4043-10-S300 |
| 1.2mm | M-4043-12-S100 | M-4043-12-S200 | M-4043-12-S300 |

















