ER70S-6 MIG Welding Wire & TIG Rod (SuperArc L-56)

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ER70S-6 is a classification in AWS A5.18/A5.18M, Specification for Carbon Steel Electrodes and Rods for Gas Shielded Arc Welding, which covers solid carbon steel electrodes and rods for gas metal arc (GMAW), gas tungsten arc (GTAW) and plasma arc (PAW) welding. Every product on this page carries the ER70S-6 designation in its AWS classification field.

How to read the ER70S-6 designation

• ER — the filler metal is classified as both an electrode and a rod, so the same product may be used as MIG wire or as TIG filler.
• 70 — 70,000 psi (480 MPa) minimum tensile strength in the AWS A5.18 tension test.
• S — solid wire, as opposed to a composite or metal-cored electrode.
• 6 — the chemical composition class within A5.18.

Trade names in this collection

ER70S-6 is a specification class, not a brand, so it is sold under several trade names. This collection holds the ER70S-6 products stocked here, including Lincoln Electric SuperArc® L-56®, SuperArc® L-59®, SuperArc® LA-56 and S6, plus Harris ER70S-6 and Techniweld ER70S-6. If you searched for “L-56” or “SuperArc L-56”, this is the ER70S-6 class those products belong to.

MIG wire and TIG rod on one page

Because the AWS classification prefix is ER, this page lists both MIG (GMAW) wire spools, reels, drums and bulk packages and TIG (GTAW) cut-length rod carrying the same ER70S-6 classification. Filter by diameter and package size to reach the exact item you need.

Several Lincoln SuperArc L-56 packages carry a second classification, EH11K under AWS A5.17, for submerged arc use; those products appear in this collection under their ER70S-6 classification and also in the submerged arc listings.