ER70S-A1 MIG wire

ER70S-A1 MIG wire lookup for Low-Alloy / High-Strength Steel. Low-alloy and high-strength filler families are procedure-sensitive and should be selected from the WPS or manufacturer data sheet.

MIG / GMAW Low-Alloy / High-Strength Steel AWS A5.28

Buying Search Review by AWS Grade

This AWS grade is listed for lookup support, but Amazon fallback is gated until the exact filler form, package, and marketplace match can be reviewed. Confirm brand, AWS classification, diameter, package size, shielding/polarity requirements, and seller details before purchasing.

Amazon fallback is held for this AWS grade until the exact filler form, package, and marketplace match can be reviewed. Use the AWS notes below and manufacturer data sheet before buying.

AWS Spec and Fit Notes

AWS familyAWS A5.28

Low-alloy steel electrodes and rods for gas-shielded arc welding.

ProcessMIG / GMAW

MIG wire form. Confirm machine setup and polarity/current type for the exact product.

Common base metal pathLow-Alloy / High-Strength Steel

Low-Alloy / High-Strength Steel starting point; verify exact alloy and service conditions.

Common diameters.023 in, .030 in, .035 in, .045 in

Use diameter, amperage, joint design, and position to narrow the final product search.

Search This AWS Grade by Brand

Open a brand page to search this same AWS classification by brand and diameter. Brand pages are organized for quick comparison and are not verified SKU lists yet.

Lincoln Electric ER70S-A1 searches

.023 in, .030 in, .035 in

Hobart ER70S-A1 searches

.023 in, .030 in, .035 in

Washington Alloy ER70S-A1 searches

.023 in, .030 in, .035 in

Victory Alloy ER70S-A1 searches

.023 in, .030 in, .035 in

Harris ER70S-A1 searches

.023 in, .030 in, .035 in

Weldcote ER70S-A1 searches

.023 in, .030 in, .035 in

ESAB ER70S-A1 searches

.023 in, .030 in, .035 in

Selection Notes

Low-alloy and high-strength filler families are procedure-sensitive and should be selected from the WPS or manufacturer data sheet.

Confirm exact base metal grade and condition.

Confirm AWS classification, product form, diameter, and package size.

Confirm shielding gas, polarity/current type, preheat, interpass, and post-weld treatment requirements where applicable.

Use the WPS, code requirements, manufacturer data sheet, and engineering requirements for critical work.

High-strength and Cr-Mo fillers can require preheat, interpass control, hydrogen control, and PWHT.

Use this as a catalog-backed AWS lookup page only. Confirm the manufacturer data sheet, WPS, code requirements, exact base metal, product form, diameter, and package size before purchasing or welding.