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Q355B H-Beam - GB Certified Supplier | SteelPro Group
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Q355B H-Beam
| Property | Parameter | Description |
|---|---|---|
| Product Name | Q355B H-Beam | Hot rolled structural steel H-beam |
| Material Grade | Q355B (S355JR, A572 Gr.50) | High strength low alloy structural steel |
| Standard Compliance | GB/T 11263, EN 10025-2, ASTM A992 | International structural steel standards |
| Carbon (C) | ≤0.20% | Carbon content per GB/T 1591 |
| Manganese (Mn) | ≤1.60% | Manganese content specification |
| Phosphorus (P) | ≤0.025% | Phosphorus content limit |
| Sulfur (S) | ≤0.025% | Sulfur content limit |
| Silicon (Si) | ≤0.55% | Silicon content specification |
| Tensile Strength | 490-630 MPa | Per GB/T 1591 standard requirements |
| Yield Strength | ≥355 MPa | Minimum yield strength at room temperature |
| Elongation | ≥20% | Elongation after fracture (thickness ≤16mm) |
| Section Size Range | H100×100 to H900×300 | Height × flange width dimensions |
| Web Thickness | 5-30 mm | Standard web thickness range |
| Flange Thickness | 8-40 mm | Standard flange thickness range |
| Length | 6-12 m (customizable) | Standard and custom lengths available |
| Surface Finish | Hot rolled, shot blasted, painted | Mill finish or surface treated options |
| Application | Building structures, bridges, industrial plants | Heavy load-bearing structural applications |
| Certification | ISO 9001, EN 10204 3.1/3.2, Mill Test Certificate | Quality assurance documentation |
| Packaging | Steel strapping in bundles | Standard export packaging with protective measures |
| MOQ | 25 tons | Minimum order quantity per specification |
Q355B H-Beam - GB Certified Supplier | SteelPro Group
Q355B H-Beam represents a premium grade structural steel solution engineered to meet demanding construction requirements across infrastructure and industrial projects. Manufactured in accordance with GB/T 11263 standards, this high-strength steel profile delivers exceptional load-bearing capacity with a minimum yield strength of 355 MPa, making it the preferred choice for heavy-duty structural frameworks, bridge construction, and multi-story building applications where superior mechanical properties and dimensional accuracy are critical.
What is Q355B H-Beam?
Q355B H-Beam is a hot-rolled structural steel section featuring an H-shaped cross-section profile, classified under Chinese national standard GB/T 1591. The "Q355" designation indicates a minimum yield strength of 355 MPa, while the "B" grade denotes enhanced impact toughness at 20°C with a minimum Charpy V-notch energy of 27J, ensuring reliable performance in moderate temperature environments and seismic zones.
Q355B H-Beam Technical Specifications
Our Q355B H-beams are manufactured with precise dimensional tolerances per GB/T 11263, available in sizes ranging from 100×100mm to 900×300mm with flange thickness from 6mm to 35mm. Chemical composition includes carbon content ≤0.20%, manganese 1.00-1.60%, silicon ≤0.55%, with controlled phosphorus (≤0.035%) and sulfur (≤0.035%) levels. Tensile strength ranges from 470-630 MPa with elongation ≥20%, meeting stringent structural engineering requirements.
Frequently Asked Questions
What is the MOQ?
Our standard minimum order quantity is 25 metric tons per specification. For mixed container loads combining multiple H-beam sizes, we accommodate orders starting from 10 tons with flexible packaging options to optimize shipping efficiency.
Do you provide material test certificates?
Yes, every shipment includes EN 10204 3.1 mill test certificates documenting chemical composition analysis, mechanical property test results, and heat number traceability. Third-party inspection by SGS, BV, or TÜV can be arranged upon request.
What is the typical delivery time?
Standard stock sizes ship within 7-10 working days after order confirmation. Custom-cut lengths or special dimensional requirements typically require 15-25 days production lead time, depending on mill scheduling and order volume.
Can you cut to custom sizes?
Absolutely. Our fabrication facility provides precision cutting services with tolerances of ±2mm for lengths up to 12 meters. We also offer drilling, welding preparation, and surface treatment services to meet project-specific requirements and reduce on-site labor costs.
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Factory Introduction
Hongji Profiles Co., Ltd. is a professional manufacturer and supplier specializing in the R&D, production and sales of high-quality steel profiles. With years of experience in the metallurgical industry, we have earned a solid reputation for reliability, precision and customer-centric service, providing global clients with premium steel profile solutions for diverse industrial and architectural needs.
Our core business covers a full range of steel profiles, including angle steel, channel steel, I-beams, H-beams, C-section steel, Z-section steel, flat steel and custom special steel profiles. These products are widely applied in building structures, bridges, transmission towers, industrial machinery, automotive components and shipping. We strictly control material selection, adopting high-quality steel grades such as S235JR, S355JR, SS400, A36 and Q355 series to ensure excellent mechanical properties, durability and corrosion resistance.
Guided by a customer-first philosophy, we have built a comprehensive sales and after-sales network. Our products are exported to Europe, North America, Southeast Asia and Africa, with long-term cooperation with well-known enterprises. Our team provides one-stop services, and we ensure prompt delivery through sufficient inventory and optimized logistics.
Upholding “Quality First, Integrity-based, Innovation-driven, Win-Win Cooperation”, Hongji is committed to becoming a global leader in the steel profile industry, continuously improving quality and service to create a better future with global customers.
Customer visits
FAQ
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
