Q355 H Beam Supplier for Structural & Construction Projects

Q355 H Beam Product Overview

The 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.

CJM Steel supplies Q355 H beams in a wide range of sizes and weights, supporting export projects that require stable mechanical performance, dimensional consistency, and reliable documentation for engineering approval.

Q355 H Beam Specifications

• Available Grades: Q355A, Q355B, Q355C, Q355D, Q355E
• Standard: GB/T 11263
• Section Type: H Beam
• Delivery Condition: Hot-rolled
• Length: 6m / 9m / 12m / custom-cut
• Surface Condition: Black, shot-blasted, primed, galvanized
• Tolerance: As per GB standard

Material test certificates (EN 10204 3.1) and dimensional inspection records can be provided upon request.

Available Q355 H Beam Sizes & Weights

Q355 H beams are supplied in commonly specified sizes for structural frames, columns, and heavy-duty supports. Typical sizes include standard H-section profiles with consistent flange and web thickness to meet structural design requirements.

Section (mm)	Height (H)	Width (B)	Web (t1)	Flange (t2)	Weight (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

Specific section sizes, unit weights, and availability may vary depending on rolling schedule. Please contact us for the latest size list and stock status.

Why Q355 H Beams Are Used for Primary Structural Frames

Q355 H beams are specified for primary structural members where high bending resistance and axial load capacity are required. Compared with channels or angles, the H-section provides a higher section modulus, resulting in better load distribution, rigidity, and structural efficiency for columns and main frames.

Based on these structural advantages, Q355 H beams are commonly used in:

• 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

They are often selected for columns, main girders, and primary load-bearing structures where structural reliability is essential.

Processing, Packing & Export Supply

CJM Steel supports export-oriented supply of Q355 H beams with services including:

• Length cutting and end finishing
• Surface treatment upon request
• Export seaworthy packing suitable for container or bulk shipment
• Consolidated loading for mixed structural steel orders

If your project requires supplementary A36 or Q355 structural profiles such as U channels, C channels, I-beams, or round bars, they can be consolidated into one container to help reduce overall logistics costs.

Chemical Composition (According to GB/T 1591)

Element	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)

Property	Q355B	Q355C	Q355D	Q355E
Yield Strength	≥355 MPa	≥355 MPa	≥355 MPa	≥355 MPa
Tensile Strength	490–630 MPa	490–630 MPa	490–630 MPa	490–630 MPa
Elongation	≥22%	≥22%	≥22%	≥22%

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.

Request Q355 H Beam Availability & Technical Confirmation

To receive accurate pricing and technical confirmation for your project, please provide:

• Required section size and quantity
• Steel grade and standard
• Destination port
• Delivery time requirement

Contact our team for availability confirmation, technical documentation, and export coordination for your Q355 H beam order.

Q: What is your company’s main products/services?

A: We are a professional manufacturer for Carbon Steel, Alloy Steel and Profile products. We have the experience of steel business for more than 10 years and our products are exported to Mid East,South America,Southeast Asia,Africa,South and East Asia etc.

Q: Can I go to your factory for a visit?

A: Of course, we welcome customers from all over the world to visit our factory.

Q: What are your terms of payment?

A: 30% T/T deposite and 70% balance before shipment.

Q: What is your delivery time?

A: For stocks,we could transport the goods to loading port within 7 days after we received the deposit; For production,it usually takes about 15-30 days after receiving the deposit.

Q: Do you provide samples? Are they free or paid?

A: Samples are available for free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?

A:Yes, we fully accept ‌third-party inspections.

Q: Why should I buy from you not from other suppliers?

A: Integrating the superior resources of China’s steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

Q:How can you guarantee quality?

A: Always a pre-production sample before mass production;Always 100% inspected before shipment