I Bars
I-Bars are steel window sections with a cross-section shaped like a capital “I.” They are commonly used as mullions or divisions in steel windows, providing excellent strength and support while keeping slim sightlines for a sleek and modern appearance.
This type of steel bar is perfect for enhancing durability without compromising design, ideal for creating strong, stylish, and long-lasting window panels.
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Specifications
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| Lead Time: | 5 - 7 days |
Available I Bar Sizes & Specifications
I-bars and wide flange beams are available in three international standards covering a comprehensive range of depths, flange widths, and web thicknesses. For complete technical data — including all masses, depths, and 6m/12m weights — download the 2026 Product Handbook.
- JIS G3192:2008 sizes from 100×50mm to 400×200mm — Japanese standard
- GB/T 706-2016 sizes from 100mm to 400mm depth — Chinese national standard
- ASTM A36 W-series from W4 to W36 — American standard in lbs/ft
- Available in standard 6m and 12m lengths — hot-rolled mild structural steel
- Used for beams, columns, portal frames and composite floor systems
Common Questions
Frequently Asked Questions
What is the difference between I-bars and H-beams?
I-bars and H-beams are both structural steel members, but they differ in shape, strength, and typical applications.
• I-bars have a slimmer profile with narrower flanges, making it lighter and more suitable for smaller-scale structures or applications where weight reduction is important.
• H-beams have wider flanges and a thicker web, giving it greater strength, load-bearing capacity, and stability. It is ideal for heavy-duty construction like buildings, bridges, and large structural frameworks.
How do I choose the right I-bar size for my project?
Consider the total load (dead and live loads), span length, and intended application. Longer spans and heavier loads require larger and stronger I-bars to prevent bending or deflection. It’s also important to check material grade and follow local building codes for safety and performance.
Are I-bars used for both residential and commercial construction?
Yes, I-bars are used in both residential and commercial construction. They are ideal for lighter structural applications such as beams and supports in homes, and for secondary structural elements in commercial buildings, depending on load requirements and design.
Source I Bars for Your Window Frames
Share the I bar profile dimensions, length and quantity required for your steel windows. We’ll help check available options and discuss any further details needed for your quotation.
