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Q355B welded H beam

length: 1m-12m

Thickness: 0.5 – 30mm

Design Style: Customizable

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Product Details

WHY choose us

Product Introduce

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.

What Does “Q355B” Mean?

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)

Unlike hot rolled H beams, welded H beams are:

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

Product Parameters

Item	Parameters
Length	Q355B welded H beam
Height	200 mm ~ 1500 mm
Length	6 m, 12 m, Customizable
Flange Width	100 mm ~ 500 mm
Flange Thickness	8 mm ~ 60 mm
Web Thickness	6 mm ~ 40 mm
MOQ	15 tons
Delivery time	7-14 days for conventional products, negotiated for customized products
Payment Term	T/T, Paypal
Packing	Standard sea freight packaging

Model (mm)	Height H	Width B	Web tw	Flange tf	Approx. Weight (kg/m)
200×200×8×12	200 mm	200 mm	8 mm	12 mm	49.9
250×250×9×14	250 mm	250 mm	9 mm	14 mm	72.4
300×300×10×15	300 mm	300 mm	10 mm	15 mm	94.5
350×350×12×19	350 mm	350 mm	12 mm	19 mm	137.3
400×400×13×21	400 mm	400 mm	13 mm	21 mm	172.1
500×300×11×18	500 mm	500 mm	11 mm	18 mm	141.8
600×300×12×20	600 mm	600 mm	12 mm	20 mm	170.6
700×300×13×24	700 mm	700 mm	13 mm	24 mm	210.8
800×300×14×26	800 mm	800 mm	14 mm	26 mm	245.7

Main Features of Q355B Welded H Beam

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

Our Certificates

ISO 45001

ISO 14001

ISO 9001

SGS Shandong Wanzhi

SGS Zhengzhou Wanzhi

Quality Control

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.

Wanzhi Factory Laboratory-Steel Testing Instruments

Customer Praise

Why choose us ?

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.