---
title: "BÖHLER Diamondspark 31 NG Gasless Flux Cored MIG Wire. 1.2mm x 16kg"
id: "23960"
type: "product"
slug: "bohler-diamondspark-31-ng-gasless-flux-cored-mig-wire-1-2mm-x-16kg"
published_at: "2026-07-07T12:49:54+00:00"
modified_at: "2026-07-07T12:49:55+00:00"
url: "https://sglonline.co.uk/product/bohler-diamondspark-31-ng-gasless-flux-cored-mig-wire-1-2mm-x-16kg/"
markdown_url: "https://sglonline.co.uk/product/bohler-diamondspark-31-ng-gasless-flux-cored-mig-wire-1-2mm-x-16kg.md"
excerpt: "This self-shielded, seamless gasless flux-cored MIG wire is designed for all-positional welding of low and medium alloy steels. It is especially suitable for on-site fabrication, structural welding and repair applications, and can be used for both single-pass and multi-pass welding...."
taxonomy_product_brand:
  - "Böhler Welding"
taxonomy_product_type:
  - "simple"
taxonomy_product_cat:
  - "Gasless Flux Cored Wire"
---

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[Gasless Flux Cored Wire](https://sglonline.co.uk/product-category/welding-consumables/mig-wire/gasless-flux-cored-wire/)

# BÖHLER Diamondspark 31 NG Gasless Flux Cored MIG Wire. 1.2mm x 16kg

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£161.04£193.25 Exc VATInc VAT

This self-shielded, seamless gasless flux-cored MIG wire is designed for all-positional welding of low and medium alloy steels. It is especially suitable for on-site fabrication, structural welding and repair applications, and can be used for both single-pass and multi-pass welding.

Not recommended for welding materials over 20mm thick.

Dispatch resumes on Monday.

SKU: 40092Category: [Gasless Flux Cored Wire](https://sglonline.co.uk/product-category/welding-consumables/mig-wire/gasless-flux-cored-wire/)
Brand: [Böhler Welding](https://sglonline.co.uk/brand/bohler-welding/)

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

**Böhler Diamondspark 31 NG Gasless Flux Cored MIG Wire – 1.2mm x 16kg**

The **Böhler Diamondspark 31 NG** is a self-shielded, seamless gasless flux cored MIG wire designed for all-positional welding of low and medium alloy steels. It is ideal for on-site fabrication, structural welding and repair work where using shielding gas may not be practical.

This wire offers good weldability, low spatter levels and a clean bead appearance, making it suitable for both single-pass and multi-pass welding applications. It performs well in vertical-up welding and produces slag that is easy to remove, helping improve efficiency during fabrication and repair work.

The seamless copper-coated design provides high resistance to rust and low moisture pick-up, supporting consistent wire feeding and reliable welding performance in demanding environments.

**Key Features:**

- Gasless self-shielded flux cored MIG wire
- Seamless copper-coated construction
- Wire diameter: **1.2mm**
- Reel size: **16kg**
- Suitable for low and medium alloy steels
- Designed for all-positional welding
- Good vertical-up welding performance
- Suitable for single-pass and multi-pass welding
- Good bead appearance
- Low spatter levels
- Easy slag removal
- High resistance to rust
- Low moisture pick-up
- No shielding gas required

**Typical Applications:**

- On-site fabrication
- Structural welding
- Repair welding
- General fabrication
- Outdoor welding applications
- Welding where shielding gas is not practical

**Important Note:**

Not recommended for welding materials over **20mm thick**.

The **Böhler Diamondspark 31 NG** is a reliable choice for welders who need a high-quality gasless flux cored wire with strong weldability, clean results and dependable performance for site and workshop use.

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