Product Introduction
I-shaped beams, also known as I-beams, are structural steel members with a characteristic I-shaped cross-section. They are widely used in construction, bridges, steel structures, workshops, and industrial facilities due to their excellent load-bearing capacity and structural efficiency.
| Grade | Q195-Q235 etc. |
| Tolerance | ±1% |
| Standard | AiSi, ASTM, bs, DIN, EN, GB, JIS |
| Model Number | 10-63#c |
| Flange Width /Thickness | Can be customized |
| Length | 1-12m, can be customized |
| Web Thickness | 4.5-17mm, can be customized |
| Flange Width /Thickness | Can be customized |
| Surface | black, galvanized, or as required |
| Technique | Hot Rollled |
| Application | Mechanical&manufacture,Steel structure, Ship building,Bridging,Automobile chassis, etc. |
Chemical Analysis-Q235B & Q355B Properties Comparison
Chemical Composition (%, max or range)
| Element | Q235B (GB/T 700) | Q355B (GB/T 1591) |
| C | ≤0.17 | ≤0.24 |
| Si | ≤0.35 | ≤0.50 |
| Mn | ≤1.40 | ≤1.60 |
| P | ≤0.035 | ≤0.035 |
| S | ≤0.035 | ≤0.035 |
Mechanical Properties
| Property | Q235B | Q355B |
| Yield Strength (≥) | 235 MPa | 355 MPa |
| Tensile Strength | 370–500 MPa | 450–630 MPa |
| Elongation (≥) | 26% | 21% |
| Impact Test | 27 J | 34 J |
Physical Properties
| Property | Value |
| Density | 7.85 g/cm³ |
| Modulus of Elasticity | 206 GPa |
| Melting Point | approx. 1450 °C |
| Thermal Conductivity | approx. 50 W/(m·K) |
| Poisson's Ratio | 0.3 |
Benifits of I Shaped Beam
I-shaped beam provides a variety of properties that are great for structural and industrial applications. It offers excellent load-bearing efficiency at a reasonable cost, and its high strength makes it ideal for buildings, bridges, warehouses and heavy-duty structures. Because of its stable mechanical performance, this structural beam is reliable enough to support long-term use under static and dynamic loads.
Other advantages of I-shaped beam are:
• High structural rigidity
• Wide standard specifications
• Easy to process and weld
• Simple construction and installation
• Strong compatibility with other steel parts
Galvanized vs. Carbon Steel I-Shaped Beam
Galvanized I-shaped beam and carbon steel I-shaped beam are both widely used in structural projects and when you choose these different materials of, I shaped beams, your decision depends on your environment, budget and maintenance needs.
Carbon steel I beams feature high strength, easy to weld, and ideal for indoor or general construction, workshops and steel structures. However, they have poor corrosion resistance and need regular surface protection.
Galvanized I beams have a protective zinc layer, with great corrosion resistance, they can work for outdoor structures, bridges and harsh environments.
In summary, carbon steel I beams are economical for indoor projects, and galvanized I beams are the more practical choice for outdoor and long lasting structures.
FAQs
What materials are available for your I-shaped beams?
We provide I-beams in Q235B, Q355B and other standard grades. Both hot-rolled carbon steel and hot-dip galvanized steel are available to meet different project requirements.
What certifications do your products have?
All our I-shaped beams are manufactured in compliance with GB/T 700, GB/T 1591and international standards including ASTM, EN, JIS.
Can you offer customized I-shaped beams?
Yes. We support custom length, cutting, drilling, welding and other processing services. We can also produce according to your drawings and technical specifications.
Do you have complete export qualifications?
Yes. We have full export documentation including export license, commercial invoice, packing list, certificate of origin, and customs clearance documents, ensuring smooth delivery to your country.
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