Q355 H Beams for Structural Projects | Reliable Supply & Competitive Pricing

Q355 H Beam – High-Strength Structural Steel for Heavy-Duty Projects

En Q355 H Beam is a high-strength structural steel widely used in industrial plants, logistic centers, heavy-duty platforms, and large commercial buildings. With 355 MPa minimum yield strength, Q355 provides significantly higher load-bearing capacity than Q235/A36—helping contractors reduce section weight while improving structural efficiency.

Produced according to GB/T 1591, our Q355 beams offer consistent chemistry, excellent weldability, and long-term reliability for demanding engineering applications.

Key Specifications of Q355 H Beam

• Available Grades: Q355A, Q355B, Q355C, Q355D, Q355E
• Estándar: GB/T 11263
• Production: Hot-rolled
• Longitud: 6m / 9m / 12m / custom-cut
• Surface Options: Black, shot-blasted, primed, galvanized

Comprehensive Size & Theoretical Weight Table (Popular Sections)

Section (mm)	Height (H)	Width (B)	Web (t1)	Flange (t2)	Peso (kg/m)
H200×200×8×12	200	200	8	12	56.2
H250×250×9×14	250	250	9	14	81.6
H300×300×10×15	300	300	10	15	110
H350×350×12×19	350	350	12	19	137
H400×400×13×21	400	400	13	21	172

A full size list is available upon request together with the quotation and inventory sheet.

Chemical Composition (According to GB/T 1591)

Elemento	Q355B (%)	Q355C (%)	Q355D (%)	Q355E (%)
C	≤0.20	≤0.22	≤0.24	≤0.26
Si	≤0.50	≤0.50	≤0.50	≤0.50
Mn	0.90–1.50	1.0–1.6	1.10-1.70	1.20–1.80
P	≤0.035	≤0.035	≤0.035	≤0.035
S	≤0.035	≤0.035	≤0.035	≤0.035

Mechanical Properties (Standard Minimum Requirements – GB/T 1591)

Propiedad	Q355B	Q355C	Q355D	Q355E
Límite elástico	≥355 MPa	≥355 MPa	≥355 MPa	≥355 MPa
Resistencia a la tracción	490–630 MPa	490–630 MPa	490–630 MPa	490–630 MPa
Alargamiento	≥22%	≥22%	≥22%	≥22%

Servicios de procesamiento

We provide full fabrication support tailored for contractor needs:

• Precision length cutting (Length tolerance: ±2 mm, or ±1 mm upon request)
• Drilling & punching for bolted connections
• Beveling for welding preparation
• Welding & component assembly
• Plate & beam fabrication packages
• Shot blasting & primer coating
• HDG galvanizing for corrosion protection

Applications of Q355 H Beams

Q355 is used extensively in mid-to-large-scale projects requiring high strength, durability, and efficient construction:

• Industrial plants & manufacturing halls
• High-rise structures and commercial complexes
• Machinery frames & heavy equipment platforms
• Warehouse & logistics centers
• Large-span roofing systems
• Infrastructure & structural reinforcement

For buyers comparing Q355 with other high-strength steels, our guide on common construction steels provides useful context—see Common Structural Steel Grades for Construction Projects (Q355, S355, A572, A709, Q460).

Why Choose Our Q355 H Beams?

1. Higher Strength for Modern Construction

Q355’s enhanced mechanical properties allow lighter designs with improved rigidity—ideal for high-rise, industrial, and machinery-support structures.

2. Stable Supply & Fast Dispatch

We maintain steady stock of popular Q355 H Beam sizes and ensure reliable delivery for time-sensitive projects worldwide.

3. Quality Assurance with Full Traceability

Full Mill Test Certificates (MTC) are provided for project orders or upon request.

4. Flexible Orders & Value-Added Processing

Custom cut lengths, drilling, welding, surface treatment, and fabrication services help reduce workload for contractors and fabricators.

Packaging & Transportation

All Q355 H Beams are packed with export-grade protection:

• Bundled with steel straps
• Waterproof wrapping
• Wooden supports for stability
• Seaworthy packaging
• Container or bulk shipment options

We supply globally across Asia, Middle East, Africa, Europe, and America.

Quality Assurance & Reliable Export Service

We work with certified mills and maintain long-term relationships with global buyers in construction, fabrication, and distribution. Each shipment undergoes:

• Dimensional and visual inspection
• Chemical & mechanical verification
• Packing reinforcement checks
• Pre-shipment photo documentation

Request A Quote Today

Get a detailed quotation, available sizes, and MTC within 24 hours.
We supply high-strength Q355 H Beams tailored for engineering contractors, fabricators, and distributors worldwide.
Póngase en contacto con nosotros now for Q355 H Beam price and inventory.

P: ¿Cuáles son los principales productos/servicios de su empresa?

R: Somos fabricantes profesionales de productos de acero al carbono, acero aleado y perfiles. Tenemos la experiencia del negocio de acero por más de 10 años y nuestros productos se exportan a Oriente Medio, Suramérica, Asia sudoriental, África, Asia del sur y del este etc.

P: ¿Puedo visitar su fábrica?

R: Por supuesto, invitamos a clientes de todo el mundo a visitar nuestra fábrica.

P: ¿Cuáles son sus condiciones de pago?

R: 30% T/T depósito y 70% saldo antes del envío.

P: ¿Cuál es su plazo de entrega?

R: Para las existencias, podríamos transportar las mercancías al puerto de carga dentro de los 7 días después de recibir el depósito; Para la producción, por lo general toma alrededor de 15-30 días después de recibir el depósito.

P: ¿Proporcionan muestras? ¿Son gratuitas o de pago?

R: Las muestras están disponibles de forma gratuita, pero el flete de mensajería será cubierto por la cuenta del cliente.

P: ¿Aceptan la inspección de terceros?

R: Sí, aceptamos inspecciones de terceros.

P: ¿Por qué debería comprarles a ustedes y no a otros proveedores?

R: Integrando los recursos superiores de la industria siderúrgica de China, proporcionamos a los clientes productos de acero de alta calidad a precios preferenciales, y podemos garantizar que las mercancías se entregan a los clientes a tiempo.

P: ¿Cómo garantizan la calidad?

A: Siempre una muestra de pre-producción antes de la producción en masa;Siempre 100% inspeccionado antes del envío