Description
One-Stop Structural Hollow Section Supply — Full range from 19×19mm to 800×800mm in ASTM A500 and EN 10219 standards with immediate stock availability.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | ASTM A500 / EN 10219 / EN 10210 Square and Rectangular Hollow Section |
| Product Type | Square / Rectangular Steel Tube (Hollow Section) |
| Steel Grade | Gr.B, S235, S275, S355, STK400 |
| Standard | ASTM A500, ASTM A53, EN 10219, EN 10210, NZS 1163, GB/T 3091 |
| Section Shape | Square / Rectangular |
| Size Range | 19mm × 19mm – 800mm × 800mm |
| Wall Thickness | 1 – 30 mm |
| Length | 5.8m / 6m / 11.8m / 12m / Random Length |
| Technique | ERW / Welded / Seamless |
| Surface Treatment | Black Painting / Galvanized / Varnish / Bare |
| Tolerance | ±1% |
| Ends | Plain |
| Application | Steel structures, Construction frames, Curtain wall, Support tubes, Building structures |
| MOQ | 5 Tons |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction & Infrastructure | Building frames, column supports, beam structures for commercial and industrial facilities |
| Architectural Engineering | Curtain wall systems, facade support structures, decorative hollow sections |
| Industrial Manufacturing | Machinery frames, conveyor structures, equipment support bases |
| Scaffolding & Temporary Works | Scaffolding uprights, cross braces, temporary support structures |
| Energy & Utilities | Solar panel mounting frames, wind turbine support structures, utility pole bases |
What Wall-Thickness Tolerance Costs on a Structural Frame Order
±1% tolerance ensures structural calculations match delivered material.
When procurement teams specify SHS/RHS for load-bearing frames, engineering calculations assume exact wall thickness. Negative tolerance beyond ±1% creates dangerous discrepancies between theoretical weight and actual load capacity. Third-party inspectors on EPC sites routinely flag containers where wall thickness deviates past tolerance limits, triggering complete rejection or costly re-rolling at supplier expense. [NEED_CITE: EN 10219 cold-formed hollow section dimensional tolerance requirements]
Matching Structural Hollow Sections to Engineering Load Requirements
ASTM A500 EN 10219 square rectangular hollow section supplier inventory spans Gr.B through S355, covering the yield strength range needed for most structural applications. S235 handles light-duty frames and non-critical supports, while S355 provides the higher yield strength required for primary load-bearing columns and beams in multi-story construction. The 1–30mm wall thickness range accommodates everything from thin-walled curtain wall supports to heavy-duty industrial equipment bases. ERW welded process suits standard structural applications where cost efficiency matters, while seamless options address higher pressure or critical safety requirements.
Engineering Compliance and Certification for Global Projects
Structural hollow sections must comply with regional engineering codes: EN 10219 for European projects, ASTM A500 for North American specifications, and NZS 1163 for Australasian markets. [NEED_CITE: steel grade equivalence between EN 10219 and ASTM A500 standards] CE certification under EN 10210/EN 10219 becomes mandatory for EU customs clearance and project acceptance, while ASTM A500 compliance satisfies American Institute of Steel Construction requirements. Surface treatment selection depends on installation environment: hot-dip galvanized finishes protect against corrosion in coastal or industrial atmospheres, while black painted or bare finishes suit indoor or controlled environments. Custom length cutting to 5.8m, 6m, 11.8m, or 12m reduces on-site waste and welding requirements.
Steel Grade Selection and Manufacturing Process Fundamentals
S-series grades (S235, S275, S355) follow European EN standards where the number indicates minimum yield strength in MPa, providing clear structural design parameters. ASTM A500 Gr.B represents the American equivalent for general structural applications, while STK400 addresses Japanese JIS specifications. [NEED_CITE: structural steel grade comparison across international standards] ERW welded manufacturing creates continuous weld seams suitable for most structural applications, offering cost advantages over seamless production. Seamless hollow sections eliminate weld seams entirely, addressing applications requiring uniform strength distribution or higher internal pressure resistance. Wall thickness tolerance directly affects both theoretical weight calculations and actual structural performance—deviations beyond ±1% compromise engineering assumptions and may trigger inspection failures.
Hidden Costs of Incorrect Hollow Section Procurement
Specifying incorrect steel grades or accepting out-of-tolerance wall thickness creates cascading project costs. Material that fails third-party inspection requires complete container rejection, triggering re-rolling expenses, shipping delays, and potential project timeline penalties. [NEED_CITE: structural steel quality assurance requirements for international projects] Missing CE or ASTM certification documentation causes customs delays, demurrage charges, and potential project compliance failures. Negative tolerance beyond acceptable limits reduces actual load capacity below engineering specifications, creating structural safety concerns that may require costly reinforcement or complete replacement.
Why Source Structural Hollow Sections from Shandong Xin Jiyuan
Factory-direct pricing eliminates trading company markups, with volume discounts available for long-term procurement partnerships. In-house metallurgical laboratory produces original mill test certificates for every batch, documenting chemical composition and mechanical properties with full heat number traceability. The 2,800+ specification inventory covers standard sizes for immediate shipment while custom orders accommodate non-standard dimensions within typical production lead times. CE certification under EN 10210/EN 10219 and ISO 9001:2015 quality management ensures compliance with international project requirements. Third-party inspection through SGS or BV validates material quality before shipment, providing independent verification for quality-conscious buyers. Professional export teams optimize container loading plans, maximizing payload while protecting surface finishes during ocean transit.
Documentation & Compliance
- Mill test certificate documenting S355JR chemical composition and yield strength per EN 10219 with full heat number traceability
- CE certificate confirming EN 10210/EN 10219 compliance for European market customs clearance and project acceptance
- ISO 9001:2015 quality management certificate covering production processes and quality control procedures
- SGS or BV third-party inspection report validating dimensional accuracy, surface quality, and material properties
- Material traceability documentation linking each bundle to specific heat numbers and production batches
- Complete customs documentation package including packing list, bill of lading, and certificate of origin
Packaging, Loading & Delivery
- Structural hollow sections bundled with steel strips and edge protectors to prevent surface damage during handling and transit
- Galvanized tubes receive additional protective wrapping to preserve zinc coating integrity during ocean shipping
- Container loading optimized for 5.8m, 6m, 11.8m, and 12m lengths to maximize payload while maintaining weight distribution
- Custom length cutting available to reduce on-site waste and welding requirements for specific project dimensions
- Each bundle marked with heat number, steel grade, and dimensional specifications for site identification and traceability
- FOB, CIF, and DDP shipping options with professional documentation handling for smooth customs clearance
Initiating Your Structural Hollow Section Procurement
Submit specifications including section dimensions, wall thickness, steel grade, quantity, and destination port to receive competitive bulk pricing with volume discounts. Request original mill test certificates and third-party inspection options for quality verification before production begins. Confirm CE/ASTM certification requirements and custom length specifications to ensure compliance with project standards and reduce on-site processing costs.
Start Your ASTM A500 EN 10219 Structural Hollow Section Order
Send your specifications via email or WhatsApp to receive detailed quotations with 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
Frequently Asked Questions
Q: What steel grades are available for ASTM A500 EN 10219 square rectangular hollow section supplier orders?
A: We supply Gr.B, S235, S275, S355, and STK400 grades covering ASTM, EN, and JIS standards. Each grade meets specific yield strength requirements for different structural applications, with full chemical composition and mechanical properties documented in original mill test certificates.
Q: Can you provide third-party inspection for quality verification?
A: Yes, SGS and BV third-party inspection services are available upon request. Inspection covers dimensional accuracy, surface quality, wall thickness verification, and material property testing, with complete reports provided before shipment.
Q: What is the minimum order quantity for custom sizes?
A: Standard specifications are available from 5 tons MOQ with immediate stock availability. Custom non-standard sizes and special dimensions follow typical production lead times with flexible MOQ arrangements for trial orders.
Q: How do you ensure wall thickness tolerance meets structural requirements?
A: Every production batch undergoes three-stage in-house quality control with dimensional verification at multiple points. Wall thickness tolerance maintained within ±1% ensures structural calculations match delivered material, with measurements documented in mill test certificates.
Q: What surface treatment options are available for different environments?
A: We offer black painting, hot-dip galvanized, varnish, and bare finishes. Hot-dip galvanizing provides corrosion protection for outdoor and coastal applications, while black painted or bare finishes suit indoor or controlled environments where appearance or additional coating systems are required.
