I Beam Welding – The Comprehensive FAQ Guide

Do you know how I beams are welded? Do you have the slightest of idea on how you can use them for welding?

I beams might be something you know by name, but are you sure you fully understand it? In this complete I beam welding guide, you’ll understand:

  • What I beams are
  • Which I beam manufacturers and who you should trust
  • How I beams are welded
  • And many more!

Without further ado, let’s get onto it!

What is an I Beam?

It’s a type of beam that you usually use in the structural or the construction industry.

What Is An I Beam
An example of what an I beam looks like

We know it as I beam because it takes on the shape of the letter “I” when you look at it front-facing.

If you thought that an I beam is the same as an H beam, think again! We’ll help you understand it more down below.

Parts of an I Beam

Parts Of An I Beam The different components of an I beam

The parts of an I beam include:

  • Flange
  • Web

How Strong are I Beams?

When you see the structure or the design of an I beam, you might be confused what it’s for.

In order to fully understand the importance of I beams, imagine a single piece of plywood. Place that plywood where both its longitudinal ends are only supported at the edge.

While it’s in that position, try standing at the middle of the plywood. You might not even be able to – it will break.

Now, to add extra strength and support, try placing a single strip of Styrofoam below that plywood and another piece of plywood below that.

Both the plywood and the Styrofoam are weak materials; but with that addition, you’ll be able to easily stand on the middle!

That brings us to our next question, which is…

Why Use I Beams?

Since they’re engineered to bend and compress at the top and be tensed at the bottom, you can find a lot of different uses for it.

Why Use I Beams
An I beam connected to another steel bar via bolting and welding

The most common reasons why I beams are used include:

  • Support trusses
  • Building and establishment framework
  • Unlike other structures, I beams are inexpensive and usually requires less material
  • Useful for a wide variety of weights and loads
  • Versatile, flexible, and efficient

Those are just some of the most common reasons why you’d want to use I beams. There are others such as its flexible design – among others.

Can You Join I Beams Together?

Yes, you can actually join and weld two (2) pieces of I beams together.

Can You Join I Beams Together
Here’s a quick look on how an I beam and be joined and fused to another I beam

The process on how you can achieve this is usually done either welding or bolting. The connection would be from under of each of the flange, the web, and/or the bevel.

Joining them could be to elevate or increase the range of support and strength; or for it to be able to cover a larger array of components or parts.

Difference of H Beam and I Beam

The wide majority of people think that I beams and H beams are the same. However, they’re actually not.

H Beam Vs. I Beam
From their structures alone, you can already tell the difference

Both of them may have the same structure and purpose, but they’re not the same thing! Here are a couple of differences you can keep in mind:

Flange Difference

One of the most distinctive features in which they differ include the flanges.

The flanges of an H beam are generally thicker, which means that you use them in applications where it needs to support bigger and heavier weights than normal.

In addition to that, the flanges of I beams have inclination – this is what assisted in the labeling of it as an “I” beam. H beams, on the other hand, have flattened out, leveled flanges.

Strength and Durability Difference

The web, or the center or the height of the beam, is usually what helps dictate the strength of the beam.

Since H beams are higher and thicker, we can therefore conclude that they’re stronger. But, I beams have better and greater flange resistance than H beams.


Lastly, I and H beams greatly differ when it comes to application. But, you’re not limited to use it on just what you can use it for!

In choosing which one to use, you need to consider the following:

  • Bend
  • Buckle
  • Tension and Compression
  • Deflection
  • Vibration

Those are just some of the factors you can identify to help you distinguish an H beam from an I beam.

Different Sizes of I Beams

Various I beam manufacturers and suppliers produce different sizes. As a matter of fact, it will also depend on the needs of the client.

However, in the study we’ve done, the most common I beam sizes that manufacturers produce are in the ranges of W 21” x 44” with a depth of 20.7” and width of 6.5,” and W 27 x 102 with a depth of 27.1” and width of 10.02.”

To help you further, here’s a quick video on how you can identify the self weight of a beam:

How Much is an I Beam?

In understanding I beams, the price alone is not enough for you to figure out how much you need.

Prices and costs are different if you just consider materials, or if it includes installation.

More often than not, a single steel I beam would cost around $5 to $20 per foot, for just the material. If it includes installation, though, it would cost you anywhere between $90 and $500 per foot.

So, the best thing to do is to fund an I beam welding manufacturer and supplier. Not only will you get the best prices, you can be assisted when it comes to installation, too!

Who Can You Trust With I Beam Welding?

Here in China, Waldun has been the number one I beam welding manufacturer and supplier.

Who Can You Trust With I Beam Welding
Waldun’s state-of-the-art technology and engineers observing a process

Our company utilizes self-manufactured and made machines, which we also sell to businesses and companies that need it!

Being the best I beam manufacturer, you can count on us to help you if you need I beams or H beam welding machines!

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We can get you the exact quotation you need!