---
product_id: 643927981
title: "MILD Steel Square Tube Hollow Section Metal Box 40mm Width / 1m (40x40mm)"
brand: "static arc"
price: "$118.76"
currency: USD
in_stock: true
reviews_count: 6
category: "Static Arc"
url: https://www.desertcart.us/products/643927981-mild-steel-square-tube-hollow-section-metal-box-40mm-width
store_origin: US
region: United States of America
---

# Black steel for enhanced corrosion resistance Cold-resistant with low cracking risk 2.5mm wall thickness for robust strength MILD Steel Square Tube Hollow Section Metal Box 40mm Width / 1m (40x40mm)

**Brand:** static arc
**Price:** $118.76
**Availability:** ✅ In Stock

## Summary

> 🖤 Build Bold. Build Lasting. Build with Confidence.

## Quick Answers

- **What is this?** MILD Steel Square Tube Hollow Section Metal Box 40mm Width / 1m (40x40mm) by static arc
- **How much does it cost?** $118.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/643927981-mild-steel-square-tube-hollow-section-metal-box-40mm-width)

## Best For

- static arc enthusiasts

## Why This Product

- Trusted static arc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Fabrication:** Easily weld, cut, drill, and paint—perfect for custom fabrication and structural applications.
- • **Versatile Size Options:** Choose from multiple sizes to fit any project need, with pre-cut 1m lengths for instant use.
- • **Weatherproof Reliability:** Designed to withstand extreme cold without cracking, keeping your frameworks solid year-round.
- • **Corrosion-Resistant Finish:** Black steel coating offers superior rust protection, maintaining sleek aesthetics and longevity.
- • **Precision Engineered Strength:** Seam welded 40x40mm tube with 2.5mm thick walls ensures unmatched durability for your toughest projects.

## Overview

The MILD Steel Square Tube Hollow Section (40x40mm, 1m length) is a seam welded mild steel box section featuring a 2.5mm wall thickness. Engineered for superior strength and corrosion resistance with a black steel finish, it excels in extreme weather conditions, especially cold climates, minimizing cracking risks. Ideal for welding, painting, cutting, and drilling, it’s the go-to choice for fabrication, frameworks, and structural applications. Available in multiple sizes, this magnetic steel tube combines durability with versatility for professional-grade projects.

## Description

- Suitable for welding and painting, easy to machine cut and drill. - Ideal for fabrication, frameworks and structural applications. - Well suited to extreme weather conditions, especially cold temperature with reduced chance of cracking or breaking. - Black steel for increased corrosion resistance. - This steel is magnetic. - Formation: Seam welded - Wall Thickness: 2mm for 20x20mm box, 2.5mm for all the rest - Length: 1m OPTIONS TO CHOOSE FROM - Size: 20x20mm, 25x25mm, 30x30mm, 40x40mm, 50x50mm NOTE - For efficiency square tubes are pre-cut to length, unfortunately we do not provide a cutting service for specific lengths. - Cut dimensions will have a tolerance of +/- 2% - In some cases square tubes may arrive with light surface rust this is unavoidable when storing mild steel, you can easily remove with WD40 or fine grade sanding.

Review: Very strong - Excellent material did exactly what I wanted.
Review: good quality - Good quality and accurate size. anti-rust coated so turned up rest free. would have been 5 star apart from price.

## Features

- Suitable for welding and painting, easy to machine cut and drill; Ideal for fabrication, frameworks and structural applications.
- Well suited to extreme weather conditions, especially cold temperature with reduced chance of cracking or breaking.
- Black steel for increased corrosion resistance.; This steel is magnetic; Formation: Seam welded
- Wall Thickness: 2mm for 20x20mm box, 2.5mm for all the rest; Length: 1m
- OPTIONS TO CHOOSE FROM - Size: 20x20mm, 25x25mm, 30x30mm, 40x40mm, 50x50mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9HZYR81 |
| Best Sellers Rank | 12,563 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 5 in Steel Tubes |
| Colour | Steel |
| Customer Reviews | 4.7 4.7 out of 5 stars (22) |
| Date First Available | 7 July 2024 |
| Included Components | MILD STEEL SQUARE TUBE |
| Item model number | MILD STEEL SQUARE TUBE |
| Manufacturer | Static Arc |
| Material | Mild Steel Box Section |
| Part Number | MILD STEEL SQUARE TUBE |
| Product Dimensions | 100 x 100 x 0.1 cm |
| Size | 40mm x 40mm |

## Product Details

- **Brand:** Static Arc
- **Colour:** Steel
- **Item length:** 1 Metres
- **Manufacturer:** Static Arc
- **Material:** Mild Steel Box Section
- **Nominal wall thickness:** 2 mm
- **Outside diameter:** 40 Millimetres
- **Product dimensions:** 100L x 100W centimetres

## Images

![MILD Steel Square Tube Hollow Section Metal Box 40mm Width / 1m (40x40mm) - Image 1](https://m.media-amazon.com/images/I/51ngaudP+wL.jpg)

## Available Options

This product comes in different **Material Type, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very strong
*by S***T on 12 February 2026*

Excellent material did exactly what I wanted.

### ⭐⭐⭐⭐ good quality
*by B***Z on 18 April 2025*

Good quality and accurate size. anti-rust coated so turned up rest free. would have been 5 star apart from price.

### ⭐⭐⭐⭐⭐ Excellent service and product
*by B***R on 11 December 2025*

Perfect, correct dimensions.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-17*