---
title: "A18 SG2 (G3Si1) Mild Steel Mig Wire (1.2mm) 15kg WELDING"
id: "10391"
type: "product"
slug: "a18-sg2-g3si1-mild-steel-mig-wire-1-2mm-15kg-welding"
published_at: "2025-05-15T14:26:38+00:00"
modified_at: "2025-08-07T09:31:50+00:00"
url: "https://sglonline.co.uk/product/a18-sg2-g3si1-mild-steel-mig-wire-1-2mm-15kg-welding/"
markdown_url: "https://sglonline.co.uk/product/a18-sg2-g3si1-mild-steel-mig-wire-1-2mm-15kg-welding.md"
excerpt: "A18 SG2 (G3Si1) Mild Steel Mig Wire (1.2mm) 15kg WELDING This 15kg spool of 1.2mm A18 SG2 MIG wire handles heavy fabrication needs. The large capacity reduces changeover time in production environments. The SG2 formulation provides excellent wetting action and..."
taxonomy_product_type:
  - "simple"
taxonomy_product_cat:
  - "Mild Steel MIG Wire"
---

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[Mild Steel MIG Wire](https://sglonline.co.uk/product-category/welding-consumables/mig-wire/mild-steel-mig-wire/)

# A18 SG2 (G3Si1) Mild Steel Mig Wire (1.2mm) 15kg WELDING

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£39.00£46.80 Exc VATInc VAT

Collection or Next Day Delivery Available. Dispatches in:

SKU: 3010200527Category: [Mild Steel MIG Wire](https://sglonline.co.uk/product-category/welding-consumables/mig-wire/mild-steel-mig-wire/)

- [Description](#tab-description)
- [Reviews (0)](#tab-reviews)

## A18 SG2 (G3Si1) Mild Steel Mig Wire (1.2mm) 15kg WELDING

This 15kg spool of 1.2mm A18 SG2 MIG wire handles heavy fabrication needs. The large capacity reduces changeover time in production environments. The SG2 formulation provides excellent wetting action and arc stability. The copper coating ensures good electrical contact and corrosion resistance. The consistent diameter (±0.01mm tolerance) maintains stable arc characteristics. The precision layer winding prevents feeding issues. Ideal for welding carbon steel up to 1/2″ thickness in flat and horizontal positions. Produces high-quality welds with minimal porosity when used with proper shielding gas. The heavy-duty steel spool withstands industrial handling. Packaged in moisture-resistant wrapping.

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