---
product_id: 608358406
title: "MILD STEEL SQUARE TUBE HOLLOW METAL BOX SECTION 20-50mm WIDTH. 1m LENGTH (40x40mm)"
brand: "static arc"
price: "¥4416"
currency: JPY
in_stock: true
reviews_count: 9
url: https://www.desertcart.jp/products/608358406-mild-steel-square-tube-hollow-metal-box-section-20-50mm
store_origin: JP
region: Japan
---

# Precision Sizes Welding Ready Easy to Machine MILD STEEL SQUARE TUBE HOLLOW METAL BOX SECTION 20-50mm WIDTH. 1m LENGTH (40x40mm)

**Brand:** static arc
**Price:** ¥4416
**Availability:** ✅ In Stock

## Summary

> 🔧 Build Your Vision with Confidence!

## Quick Answers

- **What is this?** MILD STEEL SQUARE TUBE HOLLOW METAL BOX SECTION 20-50mm WIDTH. 1m LENGTH (40x40mm) by static arc
- **How much does it cost?** ¥4416 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/608358406-mild-steel-square-tube-hollow-metal-box-section-20-50mm)

## 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

- • **User-Friendly:** Designed for easy cutting, drilling, and painting.
- • **Customizable Sizes:** Available in multiple dimensions to fit your specific needs.
- • **Magnetic Properties:** Ideal for magnetic applications and easy handling.
- • **Durable Construction:** Made from black steel grade with varying wall thickness for strength.
- • **Versatile Applications:** Perfect for fabrication, frameworks, and structural projects.

## Overview

The MILD STEEL SQUARE TUBE HOLLOW METAL BOX SECTION is a robust and versatile solution for all your fabrication needs. With a range of sizes from 20x20mm to 50x50mm and a length of 1m, this black steel grade tube is perfect for welding, machining, and structural applications. Its varying wall thickness ensures durability, while its magnetic properties enhance usability.

## Description

Mild steel square tube is strong and stiff, suitable for welding and painting, easy to machine cut and drill, and has magnetic properties. Ideal for fabrication, frameworks, structural applications and DIY projects. SPECIFICATIONS - Available size: 20x20mm, 25x25mm, 30x30mm, 40x40mm, 50x50mm - Wall thickness: 2.5mm - Length: 1000mm - Metal type: Black steel grade - Magnetic (magnets will stick to it) CHOOSE WHAT YOU REQUIRE FROM THE OPTIONS AT THE TOP OF THE PAGE NOTE - For efficiency square tubes are provided in pre-cut lengths of 1m, unfortunately we do not provide a cutting service for specific lengths, however this can easily be done yourself with a cutting tool. - 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 this with WD40 or fine grade sanding.

## Features

- Suitable for welding and painting, easy to machine cut and drill. Ideal for fabrication, frameworks and structural applications
- Available Size: 20x20mm, 25x25mm, 30x30mm, 40x40mm, 50x50mm
- Wall Thickness: 2mm for 20x20mm box, 2.5mm for all the rest; Length: 1000mm
- Metal Type: Black steel grade; Magnetic properties
- CHOOSE THE SIZE YOU REQUIRE FROM THE OPTIONS AT THE TOP OF THE PAGE

## Images

![MILD STEEL SQUARE TUBE HOLLOW METAL BOX SECTION 20-50mm WIDTH. 1m LENGTH (40x40mm) - Image 1](https://m.media-amazon.com/images/I/313a1Y7NkpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Steel section
  

*by J***O on Reviewed in the United Kingdom on 28 November 2023*

Great item and packing was great

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Steel Tubing.
  

*by M***Y on Reviewed in the United Kingdom on 22 June 2023*

Great for my needs and very well priced, delivered earlier than expected with no need for searching the town for off-cuts, Thanks Amazon

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Deliverd on time good value for the money arrived
  

*by J***I on Reviewed in the United Kingdom on 9 October 2022*

Fixing my fence post

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**Shop now:** [https://www.desertcart.jp/products/608358406-mild-steel-square-tube-hollow-metal-box-section-20-50mm](https://www.desertcart.jp/products/608358406-mild-steel-square-tube-hollow-metal-box-section-20-50mm)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-20*