Gas Shielded Welding Wire ER70S-6 is a copper-coated mild steel MIG welding wire designed for gas shielded arc welding with 100% CO2 or Argon-CO2 mixed shielding gas. It provides stable arc performance, smooth wire feeding, low spatter, good bead appearance and high deposition efficiency for welding carbon steel and low-alloy steel structures.
ER70S-6 welding wire contains higher manganese and silicon deoxidizers than many standard mild steel welding wires, making it suitable for steel plates with light rust, mill scale or surface contamination. It is widely used in steel structures, shipbuilding, bridges, engineering machinery, pressure vessels, building construction and petrochemical equipment.
Copper-coated mild steel welding wire for stable feeding and reliable electrical contact.
Suitable for 100% CO2 gas shielded welding and Argon-CO2 mixed gas welding.
Stable arc, low spatter, smooth weld bead and easy post-weld cleaning.
Higher Mn and Si deoxidizer content helps improve weld quality on mild steel and medium-strength steel.
Supports all-position welding, including horizontal, flat, overhead and vertical positions.
Good crack resistance with low hydrogen and nitrogen performance.
Available in 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm and 3.2mm diameters.
Packaging options include 5kg, 15kg, 20kg and larger coil packaging for bulk supply.
| Specification | Details |
|---|---|
| Product Name | Gas Shielded Welding Wire ER70S-6 |
| Classification | ER70S-6 / ER50-6 |
| AWS Standard | AWS A5.18 ER70S-6 |
| Model | ER70S-6 / ER50-6 |
| Standard Diameter | 1.2mm |
| Available Diameters | 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.6mm, 2.0mm, 3.2mm |
| Standard Weight | 15kg/spool |
| Shielding Gas | 100% CO2 or Argon-CO2 mixed gas |
| Welding Position | All positions: H, F, OH, V |
| Material | Mild steel, copper coated |
| Application Steel Strength | Suitable for thin, medium and thick plates with strength up to about 500 MPa |
| Main Applications | Steel structures, shipbuilding, bridges, pressure vessels, engineering machinery, building construction and petrochemical industries |
| C | Mn | Si | P | S | Ni | Cr | Cu | V |
|---|---|---|---|---|---|---|---|---|
| 0.08 | 1.51 | 0.89 | 0.015 | 0.013 | 0.016 | 0.021 | 0.18 | 0.003 |
| Tensile Strength Rm MPa | Yield Strength Rel / Rp0.2 MPa | Elongation % | Impact Energy J at -30°C |
|---|---|---|---|
| 545 | 452 | 29 | 91 |
These ER70S-6 gas shielded welding wires are optimized for stable welding performance in structural steel, machinery manufacturing, shipbuilding and pressure vessel applications. Contact KYA Fasteners for bulk orders, diameter selection or packaging confirmation.
| Name of Commodity | Grade | AWS | Diameter | Package | Remarks |
|---|---|---|---|---|---|
| ER70S-6 Welding Wire | ER50-6 | ER70S-6 | 0.8mm | 5/15kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-6 Welding Wire | ER50-6 | ER70S-6 | 0.9mm | 15/20kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-6 Welding Wire | ER50-6 | ER70S-6 | 1.0mm | 15/20kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-6 Welding Wire | ER50-6 | ER70S-6 | 1.2mm | 15/20kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-6 Welding Wire | ER50-6 | ER70S-6 | 1.6mm | 15/20kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-6 Welding Wire | ER50-6 | ER70S-6 | 2.0mm | 25kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-6 Welding Wire | ER50-6 | ER70S-6 | 3.2mm | 25/50/200/250kg/coil | MOQ: 25MT/1x20'GP |
| ER70S-G Welding Wire | ER50-G | ER70S-G | 1.0mm | 15/20kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-G Welding Wire | ER50-G | ER70S-G | 1.2mm | 15/20kg/spool | MOQ: 25MT/1x20'GP |
| ER70S-G Welding Wire | ER50-G | ER70S-G | 1.6mm | 15/20kg/spool | MOQ: 25MT/1x20'GP |
ER70S-6 gas shielded welding wire is suitable for high-efficiency MIG / MAG welding of mild steel and medium-strength steel. It is commonly selected for industries that require consistent weld bead formation, good feedability and stable welding performance in mass production.
Steel structures and building construction
Shipbuilding and marine fabrication
Bridge construction and infrastructure projects
Coal mine machinery and engineering machinery
Pressure vessels and boiler-related fabrication
Automotive parts and general metal fabrication
Petrochemical equipment and industrial piping support work
| Buyer Concern | Recommended Check |
|---|---|
| Welding Process | Confirm whether the project uses MIG / MAG welding with 100% CO2 or Argon-CO2 mixed gas. |
| Wire Diameter | Select 0.8mm to 1.0mm for thinner materials, 1.2mm for common fabrication, and larger diameters for heavier welding work. |
| Steel Condition | ER70S-6 is suitable when the steel surface has light rust, mill scale or minor contamination because of its Mn and Si deoxidizer content. |
| Packaging | Confirm spool weight, coil packaging, pallet packing and container loading requirements before bulk ordering. |
| Bulk Order | Confirm MOQ, diameter mix, lead time, certificate requirements and shipping port before placing a 20'GP order. |
| Wire Type | Main Characteristics | Recommended Use |
|---|---|---|
| ER70S-3 | General mild steel welding wire with lower deoxidizer levels. | Clean steel surfaces and general fabrication work. |
| ER70S-6 | Higher Mn and Si deoxidizers, stable arc, low spatter and strong weld bead formation. | Mild steel and medium-strength steel with light rust, mill scale or general fabrication surface conditions. |
| ER70S-G | Customized composition wire depending on supplier and welding requirement. | Specific fabrication conditions requiring supplier-confirmed chemistry and performance. |
KYA Fasteners supplies ER70S-6 welding wire, welding consumables and industrial fasteners for global buyers. For importers, distributors, steel fabrication plants, shipyards and machinery manufacturers, KYA can support diameter selection, packaging confirmation, bulk supply and export shipment.
Factory supply for ER70S-6 / ER50-6 gas shielded welding wire.
Multiple diameters from 0.8mm to 3.2mm available.
5kg, 15kg, 20kg, 25kg and large coil packaging options.
Suitable for steel structures, machinery, shipbuilding, bridges and pressure vessel fabrication.
Bulk export support for 25MT / 1x20'GP orders.
ER70S-6 welding wire is used for MIG / MAG welding of mild steel and medium-strength steel in steel structures, shipbuilding, bridges, machinery manufacturing, pressure vessels, building construction and petrochemical equipment.
ER70S-6 welding wire can be used with 100% CO2 or Argon-CO2 mixed shielding gas. CO2 is often selected for cost efficiency, while Argon-CO2 mixed gas can improve arc stability and bead appearance.
ER70S-6 has higher manganese and silicon deoxidizer content, which helps produce better weld quality on steel with light rust, mill scale or minor surface contamination. It also provides stable arc performance and low spatter.
Yes. This wire supports all-position welding, including horizontal, flat, overhead and vertical positions, depending on welding parameters, shielding gas and operator technique.
For thinner steel, 0.8mm or 0.9mm is commonly selected. For general fabrication, 1.0mm and 1.2mm are widely used. For thicker plates and heavy-duty welding, 1.6mm, 2.0mm or larger diameters may be selected.
Common packaging includes 5kg, 15kg and 20kg spools for smaller diameters, 25kg spools for larger diameters, and 50kg, 200kg or 250kg coils for bulk industrial supply.
ER70S-6 can be used in pressure vessel, bridge and structural steel fabrication when the welding procedure, base material, shielding gas and applicable standards are properly confirmed by the project engineer.
Yes. KYA can supply ER70S-6 welding wire in multiple diameters and packaging formats. Bulk orders, 25MT / 1x20'GP shipments and packaging requirements can be confirmed before production.
