Description
Factory-Direct Fabrication — Custom fabricated H-beams and columns produced on our own CNC lines with no broker markup, shipped with full mill certificates.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | Fabricated Structural Steel H-Beam & Column |
| Product Type | Fabricated Steel Structure |
| Steel Grade | Q235B, Q355B, S355JR, AS/NZS Grade 300 |
| Standard | GB |
| Section Shape | Fabricated Welded H-Section (Beam & Column) |
| Length | Custom Length |
| Technique | CNC Cutting, Automatic Welding, Pre-drilled |
| Surface Treatment | Mild Steel / Hot-dip Galvanized / Powder Coating / Painting |
| Tolerance | ±1% |
| Connection Preparation | Pre-drilled holes, Welded connection plates/brackets |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting, Galvanizing, Coating |
| Feature | Heavy Duty, Corrosion Resistant, Durable |
| Application | Steel Structure Bridge, Workshop, Warehouse, Industrial Platform Supports, Factory Building, Modular Buildings, Solar Support Structures |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Industrial Construction | Workshop frames, warehouse portal frames, factory building columns |
| Infrastructure | Steel structure bridge girders, highway sign gantries |
| Energy & Utilities | Solar support structures, modular substation frames |
| Commercial Buildings | Industrial platform supports, mezzanine floor beams |
| Modular Construction | Prefabricated building frames, container-style structural modules |
What Pre-Drilled Tolerance Costs on a Structural Frame Order
A 15mm bolt-hole offset on a fabricated column means a full welding crew flown overseas to rework forty tons of steel on site.
I learned that the hard way on a Doha warehouse job years ago — end plates welded at the wrong angle, not a single frame went together when the erection crew started. With custom fabricated structural steel beam and column assemblies, the tolerance chain starts at the CNC table. When hole patterns drift beyond ±1%, field crews either ream every connection or cut and re-weld on the ground. Both options destroy the project schedule and burn through the contingency budget. Fragmented sourcing makes it worse: the beam comes from one mill, the column from another, and nobody checked whether the connection plates match the same drawing revision. [NEED_CITE: structural steel fabrication tolerance standards per EN 1090-2]
How Fabricated H-Sections Match Heavy-Duty Frame Requirements
Custom fabricated structural steel beam and column assemblies arrive on site with connection plates already welded and bolt holes pre-drilled to match your erection drawings. For warehouse portal frames and industrial platform supports, this means the Q355B or S355JR sections carry design loads without field modification. Hot-dip galvanizing extends service life in corrosive environments — coastal industrial zones, chemical plant platforms, or agricultural storage facilities where painted surfaces degrade within a few seasons. Our CNC lines hold ±1% tolerance across custom lengths, so multi-span warehouse frames fit together at first lift.
Engineering Compliance and Surface Protection Choices
Structural frames for bridges and industrial buildings must satisfy load-bearing codes such as EN 1993 or AISC equivalents, which demand verified steel grade chemistry and documented yield performance. Q355B and S355JR both deliver higher yield strength than basic carbon grades, making them suitable for heavy-duty column and beam applications where deflection limits are tight. Surface treatment selection depends on the service environment: hot-dip galvanizing suits outdoor or high-humidity exposure, powder coating provides aesthetic finish for visible architectural frames, and shop painting offers cost-effective protection for indoor workshop structures. Every batch ships with original mill test certificates and CE documentation where required for EU customs clearance. [NEED_CITE: EN 1090 execution class requirements for fabricated steel structures]
Steel Grade Selection and Fabrication Process
Q235B serves general-purpose framing where extreme load capacity is not required — light-duty mezzanine beams, secondary bracing, or non-critical platform supports. Q355B and S355JR step up the yield strength for primary structural members: main portal frame columns, bridge girders, and crane runway beams. The S-series designation (S355JR) aligns with EN standards for European projects, while Q355B conforms to GB specifications commonly specified across Middle East and Southeast Asian tenders. AS/NZS Grade 300 covers Australasian market requirements. CNC cutting and automatic submerged-arc welding produce consistent full-penetration welds along the H-section web-to-flange joints. Pre-drilled connection holes eliminate field drilling, reducing erection time and eliminating the risk of hole misalignment. [NEED_CITE: steel grade equivalence between GB Q-series and EN S-series standards]
Hidden Costs of Incorrect Grade or Missing Certification
Specifying Q235B when the structural engineer designed for Q355B means the frame cannot carry intended crane loads — the entire structure fails inspection and requires complete replacement. Missing CE certificates on a European project trigger customs holds at the port of entry, delaying delivery by weeks while paperwork gets sorted. Unverified mill test certificates raise red flags during third-party inspection, potentially rejecting the entire shipment. These failures cost far more than the marginal price difference between grades or the fee for proper documentation. [NEED_CITE: structural steel certification requirements for EU construction product regulation]
Why Project Buyers Source Fabricated Structures from Xin Jiyuan
Our three production lines run simultaneously, delivering monthly capacity exceeding 20,000 tons of fabricated and rolled steel products. Every fabricated H-beam and column passes through our in-house laboratory with three-stage inspection before shipment. We hold ISO 9001:2015, Lloyd’s CE (EN 10210/10219), and FPC certifications — documentation that clears customs without delays. Custom fabrication means we cut, weld, drill, and coat to your exact drawing, not a catalog size. Factory-direct pricing eliminates broker margins, and volume discount programs reward long-term procurement partnerships. Our export team handles container loading optimization — critical when shipping long-length fabricated columns that require careful weight distribution across 40ft open-top or flat-rack containers.
Documentation & Compliance
- Mill test certificate documenting Q355B or S355JR chemical composition and mechanical properties per GB or EN standards
- CE certificate (EN 10210/EN 10219) for European market customs clearance and project compliance
- ISO 9001:2015 quality management system certificate covering fabrication and welding processes
- SGS or BV third-party inspection report available upon request for independent quality verification
- Material traceability by heat number linking each fabricated section to its original plate or coil source
- Complete customs documentation package including packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- Fabricated H-beams and columns bundled with steel strips and edge protectors to prevent coating damage during transit
- Hot-dip galvanized sections wrapped with waterproof membrane to preserve zinc coating integrity during ocean freight
- Custom-length members loaded on timber sleepers with dunnage spacing calculated for the specific section profile
- Container loading plans optimized for long fabricated columns using 40ft open-top or flat-rack equipment where standard containers cannot accommodate length
- Heat number and steel grade stenciled on each piece for site identification and traceability verification
- FOB, CIF, and DDP shipping terms available with professional export documentation handling
Start Your Fabricated Steel Procurement
Submit your structural drawings, steel grade requirements, tonnage, and destination port to receive a competitive quotation with full mill test certificates. We provide custom fabrication pricing for non-standard sizes, confirm CE/EN certification requirements for your market, and deliver optimized container loading plans for long-length members.
Get Your Fabricated Steel Quote
Send your specifications, quantity, and destination to receive pricing and mill test certificates within 12 hours.
Company: Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Website: www.sdxinjiyuan.com
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@sdxinjiyuan.com
Address: No.11889, Jingshi West Road, Lulian Group, Jinan City, Shandong Province, China
