---
product_id: 779437784
title: "A500/A513 Carbon Steel Square Tube, Hot Rolled ASTM A-36, 4\" Height, 3/16\" Wall, 36\" Length, OnlineMetal"
brand: "onlinemetals"
price: "1700 Lei"
currency: RON
in_stock: false
url: https://www.desertcart.ro/products/779437784-a500-a513-carbon-steel-square-tube-hot-rolled-astm-36
store_origin: RO
region: Romania
---

# 4" height precision 12.1 kg robust weight 3/16" durable wall thickness A500/A513 Carbon Steel Square Tube, Hot Rolled ASTM A-36, 4" Height, 3/16" Wall, 36" Length, OnlineMetal

**Brand:** onlinemetals
**Price:** 1700 Lei
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Build Bold, Build Smart — Steel That Means Business

## Quick Answers

- **What is this?** A500/A513 Carbon Steel Square Tube, Hot Rolled ASTM A-36, 4" Height, 3/16" Wall, 36" Length, OnlineMetal by onlinemetals
- **How much does it cost?** 1700 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/779437784-a500-a513-carbon-steel-square-tube-hot-rolled-astm-36)

## Best For

- onlinemetals enthusiasts

## Why This Product

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

## Key Features

- • **Weld-Ready Steel:** Optimized for superior welding and fabrication ease
- • **Precision Dimensions:** Exact 4" height, 3/16" wall, and 36" length for seamless integration
- • **Hot Rolled Durability:** Enhanced toughness and abrasion resistance through hot rolling
- • **Versatile Application:** Ideal for bridges, buildings, automotive, and electronics
- • **Industry-Standard Strength:** Meets ASTM A36 specs for trusted structural integrity

## Overview

The A500/A513 Carbon Steel Square Tube by OnlineMetals is a hot rolled, ASTM A36-compliant structural steel tube measuring 4" in height, 3/16" wall thickness, and 36" length. Engineered for strength, weldability, and versatility, it’s the go-to choice for professionals demanding reliable performance in construction, automotive, and electronics applications.

## Description

A36 carbon steel square tubing is hot rolled and meets the American Society of Testing and Materials Association of International ASTM A36 specifications. A36 carbon steel grade is a structural steel that has better molding than 1018 carbon steel. The tube is hot rolled and is a method of compressing the metal between two rollers at a temperature higher than the recrystalline temperature of the material and reaching the specified dimensions. Steel is an iron alloy containing carbon and other elements that change the steel to achieve certain properties. In general, steel with a high carbon content is stronger and hardness, abrasion resistance, and steel with low carbon content improves formability, welding and toughness. Carbon steel contains most AISI-SAE grades in a range of 1000 and is classified as low (less than 0.3%), medium (0.3% to 0.6%) and high (0.6% or higher) depending on the carbon content level. Alloy steel contains over 1300, 4000 AISI-SAE grades and incorporates elements such as chrome, molybdenum, and nickel, and modify properties such as mechanical and corrosion resistance. Tool steel contains most grades of letter and number grades and has a high carbide content that is abrasion resistant, high hardness, and ability to hold the edge. Some tool steel is designed to not deform even when used at high temperatures. Tensile strength is used to indicate the overall strength of the material, and is the maximum stress that can withstand before breaking. Abrasion resistance shows the ability to prevent surface damage caused by contact with other surfaces. Toughness represents the ability of a material that absorbs energy before breaking, while the hardness (generally measured as a dimpling hardness) represents resistance to permanent surface deformation. Molding properties indicate how easy and permanent material can be shaped. Machine-ability refers to how easy cutting, molding, finishing, or other machining can be done while the welding properties feature the welding capability.

## Features

- A500/A513 steel is the most common type of steel tubing in North America for strength, welding, and low cost
- 4" tall, 3/16" wall, 36" long
- The A500/A513 is used in both bridge and building structural applications, automotive, and consumer electronics industries
- Fits ASTM-A513, ASTM-A500 (Phone for Stock)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | OnlineMetals |
| Model Number | 78698 |
| Package Dimensions | 91.44 x 10.16 x 10.16 cm; 12.07 kg |
| Color | steel |
| Name List for Name Plates | 36" long |
| Material | hot roll_steel |
| Item Weight | 12.1 Kilograms |

## Product Details

- **Brand:** OnlineMetals
- **Material:** hot roll_steel
- **Color:** steel
- **Manufacturer:** OnlineMetals

## Images

![A500/A513 Carbon Steel Square Tube, Hot Rolled ASTM A-36, 4" Height, 3/16" Wall, 36" Length, OnlineMetal - Image 1](https://m.media-amazon.com/images/I/51mvzNj-mjL.jpg)
![A500/A513 Carbon Steel Square Tube, Hot Rolled ASTM A-36, 4" Height, 3/16" Wall, 36" Length, OnlineMetal - Image 2](https://m.media-amazon.com/images/I/51HjqxLR+GL.jpg)
![A500/A513 Carbon Steel Square Tube, Hot Rolled ASTM A-36, 4" Height, 3/16" Wall, 36" Length, OnlineMetal - Image 3](https://m.media-amazon.com/images/I/31bDN4v-70L.jpg)
![A500/A513 Carbon Steel Square Tube, Hot Rolled ASTM A-36, 4" Height, 3/16" Wall, 36" Length, OnlineMetal - Image 4](https://m.media-amazon.com/images/I/21u1c0M+zbL.jpg)

## Frequently Bought Together

- OnlineMetals A500/A513 Carbon Steel Square Tubing, Hot Rolled, ASTM A-36, 4" Height, 3/16" Wall, 36" Length
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-06*