Description
Factory-Direct H Beam Supply — Hot rolled sections in Q345B, S355JR, and S355J2 shipped with original mill test certificates from our Jinan production base.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | Q345B / S355JR / S355J2 Hot Rolled H Beam |
| Product Type | H-beam |
| Steel Grade | Q345B, S355JR, S355J2, Q235, A36, SS400 |
| Standard | BS EN, GB, AISI, ASTM, DIN, JIS |
| Section Shape | H-beam (I-beam profile) |
| Web Width | 100mm–900mm |
| Web Thickness | 4.5mm–36.5mm |
| Flange Thickness | 8mm–64mm |
| Length | Custom / as request |
| Technique | Hot Rolled |
| Surface Treatment | Hot Rolled (customized coating available) |
| Tolerance | ±1% |
| Processing Services | Bending, Welding, Decoiling, Punching, Cutting |
| Packing | Seaworthy |
| Application | Steel building structures, Industrial platforms, Construction frames, Infrastructure projects |
| MOQ | 1 Ton |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| EPC Contractors | Steel building frames, industrial warehouse columns and rafters |
| Infrastructure Projects | Bridge support girders, highway gantry structures |
| Construction | Multi-story building frameworks, mezzanine floor beams |
| OEM Factories | Machinery support bases, conveyor frame structures, crane runway beams |
When Dimensional Tolerance Decides Structural Alignment on Site
A ±1% tolerance on a 900mm-deep H beam means less than 9mm deviation — the difference between bolt-hole alignment and on-site reaming.
Procurement teams sourcing hot rolled H beams across mixed grades often face specification gaps when web and flange dimensions drift beyond acceptable limits. When S355JR sections arrive with flange thickness variations exceeding tolerance, field crews spend hours grinding and reaming before any welding can begin. I have seen project timelines slip because a batch of H beams from one supplier met GB dimensions while the next shipment followed a different mill standard — and nobody caught it until the steel hit the foundation bolts. [NEED_CITE: dimensional tolerance requirements for hot rolled structural steel sections per EN 10024]
Matching Load-Bearing Requirements Across Structural Frame Designs
Hot rolled H beams in Q345B and S355JR serve as primary load-bearing members in portal frame structures where moment resistance and lateral stability depend on consistent section properties. The 100mm to 900mm web width range covers everything from secondary purlin supports to main ridge beams in industrial warehouses. Our in-house cutting and welding services allow EPC contractors to receive pre-fabricated sections sized to drawing specifications, reducing on-site fabrication waste and labor costs. Each S355JR hot rolled H beam is traceable to its original heat number through the mill test certificate.
Structural Code Compliance and Certification for International Projects
Load-bearing H beam selections must conform to the design codes governing the project jurisdiction — EN 1993 for European markets, AISC for North American structures, and GB 50017 for domestic Chinese engineering. The S355JR grade meets EN 10025-2 requirements for non-alloy structural steel with minimum yield strength at 16mm thickness, while Q345B aligns with GB/T 1591 for low-alloy high-strength applications. CE certification under EN 10210 and EN 10219 ensures customs clearance across EU member states, and every shipment includes original mill test certificates documenting chemical composition and mechanical properties. Third-party inspection through SGS or BV is available before container sealing. [NEED_CITE: structural steel certification requirements for CE marking under EN 1090]
Steel Grade Selection and Hot Rolling Process Fundamentals
The Q-series and S-series designations represent different national standard systems but share comparable mechanical behavior. Q345B (GB standard) and S355JR (EN standard) both target a yield strength class suitable for primary structural framing, though their exact chemical composition and testing protocols differ by standard body. Hot rolling at temperatures above the recrystallization point produces a uniform grain structure across the full section, which is critical for weldability and impact resistance in thick flanges. The ±1% dimensional tolerance on web width and flange thickness ensures that section modulus calculations in structural design software remain valid without requiring derating factors. Surface condition from hot rolling provides adequate adhesion for field-applied intumescent fire coatings or epoxy primers in corrosive environments. [NEED_CITE: hot rolling process effects on microstructure and mechanical properties of structural steel]
Hidden Costs of Incorrect Grade or Missing Certification
Specifying S355J2 for a project in a cold climate zone while receiving S355JR material — which lacks the required Charpy impact energy at sub-zero temperatures — creates structural safety risks that may not surface until a third-party inspector flags the discrepancy at the port. Customs authorities in the EU routinely detain structural steel shipments without valid CE documentation, and the resulting demurrage charges at Jebel Ali or Rotterdam can exceed the material cost itself. Negative tolerance abuse on flange thickness reduces the actual section modulus below the design assumption, forcing engineers to either reject the shipment or redesign the connection details — both options carry schedule penalties. [NEED_CITE: consequences of steel grade substitution in structural engineering applications]
Procurement Confidence Through Verified Traceability
Every S355JR hot rolled H beam we supply comes with an original mill test certificate showing heat number, chemical composition, and tensile test results — not a template document generated after the fact. Our three production lines running simultaneously in Jinan deliver monthly capacity exceeding 20,000 tons, with ready stock in standard sizes enabling urgent dispatch while custom orders follow typical production lead times. We consolidate multi-product container loading when your project requires H beams alongside square tubes, steel plates, or channel sections — reducing shipping costs and simplifying customs documentation at destination. Volume discount programs apply to repeat orders, and our professional export team handles all shipping documentation, container loading optimization, and port coordination.
Documentation & Compliance
- Mill test certificate documenting Q345B and S355JR chemical composition, yield strength, and tensile properties per GB/T 1591 and EN 10025-2
- CE certificate under EN 10210/EN 10219 for structural steel products entering European Union markets
- ISO 9001:2015 quality management system certificate covering production and inspection processes
- SGS or BV third-party inspection report available upon request, covering dimensional checks and visual surface quality
- Full material traceability by heat number linking each H beam to its original rolling batch and test results
- Complete customs documentation package including packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- Hot rolled H beams bundled with steel strip ties and edge protectors to prevent surface damage during ocean transit
- Custom cut-to-length sections packed separately with identification tags showing steel grade, heat number, and piece mark
- Container loading plans optimized for mixed-size H beam shipments, maximizing weight utilization within 20ft and 40ft open-top or flat-rack containers
- Surface protection available as shop-applied primer or oil coating to prevent transit corrosion on bare hot rolled finish
- Heat number and grade markings stenciled on each piece for on-site identification and inspection traceability
- FOB, CIF, and DDP shipping terms available with door-to-door logistics coordination to project site
Start Your Procurement With Verified Specifications
Submit your drawing specifications, steel grade requirements, tonnage, and destination port to receive a detailed quotation with mill test certificate samples and container loading proposals. Our team responds within 12 hours with pricing, available stock dimensions, and processing options for cutting, welding, or punching to your project requirements.
Request Factory-Direct H Beam Pricing
Send your specifications to admin@sdxinjiyuan.com or contact us via WhatsApp at +86 188 5315 7756 for a detailed quotation with mill test certificates.
Frequently Asked Questions
Q: What is the difference between Q345B and S355JR, and can you supply both from one order?
A: Q345B follows the Chinese GB/T 1591 standard while S355JR conforms to European EN 10025-2. Both are low-alloy structural grades with comparable yield strength classes. We supply both grades from the same order, with each heat receiving its own mill test certificate showing the applicable standard.
Q: Can you provide third-party inspection before shipment?
A: Yes. SGS and BV inspection services are available upon request. The inspection covers dimensional verification, visual surface quality, and review of mill test certificates against the purchase order specifications.
Q: What is the MOQ for custom-cut H beams, and what processing services do you offer?
A: The minimum order quantity is 1 ton. We provide in-house cutting, welding, bending, punching, and decoiling services. Custom lengths and fabricated sections follow typical production lead times depending on order complexity.
Q: Do your H beams carry CE certification for EU import clearance?
A: Yes. Our structural steel products carry CE certification under EN 10210 and EN 10219, along with ISO 9001:2015 quality system certification. Complete documentation is provided with every shipment.
Q: How do you optimize container loading for heavy H beam shipments?
A: Our export team prepares detailed loading plans based on the specific dimensions and weights of your order. We consolidate mixed-size H beams with other structural steel products to maximize container weight utilization and reduce per-ton shipping costs.
