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Q355B welded H beam is a type of structural steel beam manufactured by welding steel plates into an “H” shape. It is made from Q355B low-alloy high-strength structural steel, which offers excellent strength, weldability, and toughness for construction and industrial applications.

Compared with hot rolled H beams, welded H beams can be produced in customized sizes and larger dimensions, making them ideal for heavy steel structures and long-span projects.

• Q = Yield strength (“Qu” in Chinese standard)
• 355 = Minimum yield strength of 355 MPa
• B = Impact test grade at 20°C

Q355B is equivalent to:

• ASTM A572 Grade 50 (USA)
• S355JR (Europe)

• Customizable in size
• Suitable for extra-large dimensions
• Better for heavy load structures

High Strength: Yield strength ≥ 355 MPa

Excellent Weldability: Easy fabrication and assembly

Large Size Availability: Custom dimensions possible

Good Load Capacity: Ideal for heavy structures

Cost Efficient: Optimized steel usage

Stable Structure: Strong resistance to bending

We have set up a professional and standardized product testing center laboratory, and strictly control product quality by building a scientific and complete testing system. The various testing items and professional instruments equipped in the laboratory strictly follow international standards, and use advanced technical means and strict testing processes to fully guarantee the reliability and stability of product quality, and provide customers with trustworthy high-quality products.

We are an integrated industrial and trade company that can produce steel independently and reduce costs.

From raw materials to finished products, we control quality throughout the process to ensure that the products meet customer requirements.

The combination of production and sales confidentiality can respond to orders quickly and shorten delivery time.

One-stop service, from consultation to production, and finally to after-sales service, provides all-round support.

We are self-produced, reducing dependence on external price fluctuations. In the face of sudden price increases, we can still deliver quickly and on time.

For inventory steel, we can provide preferential prices.

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