Quick answer: Steel Purlin 2x3x6m, Wall Thickness 1.5mm from Sino East Steel — category: Square & Rectangular Tubes, supplied factory-direct from our mill in Tianjin. Standard: ASTM / EN / API. Every shipment arrives with an EN 10204 3.1 mill test certificate. MOQ: 10-20 tons, lead time to Polish ports (Gdańsk, Gdynia, Szczecin): 15-25 days. Send sizes, grade and quantity for a quotation within 24 hours.
Steel Purlin 2x3x6m, Wall Thickness 1.5mm
Steel Purlin 2x3x6m, Wall Thickness 1.5mm — a factory-direct product from Sino East Steel, one of China’s certified steel manufacturers serving Polish importers, distributors and contractors since 2005. This product is supplied to EN, ASTM and API specifications, with EN 10204 3.1 mill test certificates, and is packed for sea freight to Gdansk, Gdynia, Szczecin and other Baltic and Northern European ports. Every order benefits from direct mill pricing, documented quality control and a professional export team that manages documentation, packing and shipping from one source.
This page provides the full technical picture of Steel Purlin 2x3x6m, Wall Thickness 1.5mm — available specifications, manufacturing background, typical applications, quality assurance, packaging and ordering process — so your procurement team can evaluate the product without chasing data across multiple suppliers. For an exact quotation matching your required sizes and quantities, contact our export office; a confirmed price and delivery schedule are normally provided within 24 hours.
Key Specifications at a Glance
| Parameter | Value |
|---|---|
| Standard | ASTM / EN / API |
| Certification | EN 10204 3.1 MTC |
| Minimum Order Quantity (MOQ) | 10-20 tons |
| Lead Time | 15-25 days |
| Payment Terms | T/T, L/C |
| Export Packing | Seaworthy export packing |
Available Sizes & Range
| Item | Range | Notes |
|---|---|---|
| Square | 20×20 – 400×400 mm | WT 1.2 – 16 mm |
| Rectangular | 40×20 – 400×200 mm | WT 1.2 – 16 mm |
| Length | 6 / 12 m | or cut to size |
Standards, Grades & Equivalents
| Standard | Grade | Typical Use |
|---|---|---|
| EN 10219-1/-2 | S235JR – S355J2H | Cold-formed welded hollow sections |
| EN 10210 | S235JRH – S355J2H | Hot-formed hollow sections |
| ASTM A500 | A, B, C | Cold-formed welded carbon steel |
| GB/T 6728 | Q235B – Q355B | Structural hollow sections |
Typical Mechanical Properties by Grade
| Grade | Yield Strength | Tensile Strength | Typical Use |
|---|---|---|---|
| S235JR | 235 MPa | 360-510 MPa | Railings, light frames |
| S355J2H | 355 MPa | 470-630 MPa | Load-bearing frames |
| A500 Gr.B | 315 MPa | 400 MPa | US structural |
| Q355B | 355 MPa | 470-630 MPa | Economical HSLA |
Square & Rectangular Steel Tubes for Structural Framing
Square and rectangular hollow sections (SHS/RHS) are cold-formed or hot-formed steel tubes whose flat faces simplify welding, bolting and connection design — which is why they dominate steel framing, railings, machinery frames and architectural structures across Europe. Sino East Steel supplies SHS and RHS in sizes from 20×20 mm to 400×400 mm, with wall thicknesses from 1.2 mm to 16 mm, in EN 10219 S235JR to S355J2H, ASTM A500 and GB/T 6728 grades, in black, galvanized and pre-galvanized finishes. Tubes can be delivered in standard 6 m and 12 m lengths or cut to drawing.
Forming and Sizing of Hollow Sections
Strip or coil is roll-formed into a closed section on a continuous mill, welded by high-frequency ERW, and then passed through sizing rolls that form the exact square or rectangular profile. Galvanized versions receive a hot-dip zinc coating after forming, which protects the corners and internal surfaces uniformly. Every batch is straightened, cut and checked for corner radius, flatness and weld quality before packing.
Applications
Square and rectangular tubes are used in steel frame construction, mezzanines and platforms, handrails and balustrades, gates and fences, solar panel mounting frames, carports, greenhouses, agricultural buildings, vehicle and trailer frames, conveyor supports, exhibition stands and architectural detailing. Galvanized RHS is especially popular with Polish fabricators because it eliminates painting on outdoor structures.
Selecting the Right Section
For load-bearing columns and beams, calculate the section modulus and choose EN 10219 S355J2H for efficient strength-to-weight. For railings and lightweight frames, S235JR is the economical standard. Consider the corner radius for welding fit-up, and choose galvanized sections for outdoor or humid environments. We can also provide structural design data (section properties) for the sizes you order.
Product Advantages for Frame and Railing Fabricators
Square and rectangular tube is a fabricator’s everyday material, and consistency is what keeps welding and assembly fast. Our hollow sections are produced with accurate outside dimensions, controlled corner radii and straight lengths, so mitre cuts and welds line up the first time. Galvanized sections arrive ready for outdoor installation, which removes a whole painting step from railing and frame projects. For Polish fabricators, the practical benefit of buying from the mill is simple: one supplier for black and galvanized sections in the full size range, cut to length when needed, with certificates that satisfy both your quality system and the end client.
Quality Control & Certification
Every batch of material delivered from our Tianjin plant passes through a documented inspection routine: chemical composition analysis, tensile and yield testing, dimensional checks and, where applicable, hydrostatic or flattening tests. Each consignment ships with an EN 10204 3.1 mill test certificate (MTC) and batch traceability records, so your incoming inspection at Gdansk, Gdynia, Szczecin or any other EU port is straightforward. The factory operates under an ISO 9001:2015 quality management system and is independently audited by SGS and TUV Rheinland for production capacity and export reliability.
Inspection & Testing Before Shipment
Before any material leaves the plant it passes through a defined inspection gate. Dimensional checks are performed against the ordered specification, surface quality is inspected visually and with instruments where required, and the relevant mechanical and chemical tests are verified against the mill certificate. For pipe and tube products, hydrostatic and non-destructive testing results are reviewed against the standard’s acceptance criteria. Customers who request it can witness the inspection or receive photographs and video of the loaded goods before the vessel sails — a practical way to build confidence without travelling to China.
Export Documentation Included
Every order is shipped with a complete documentation set: commercial invoice, packing list, bill of lading, certificate of origin, and the EN 10204 3.1 mill test certificate with heat numbers and test results. Where your project requires third-party inspection, we can arrange SGS, TUV or Bureau Veritas inspection before loading, with the inspection report issued in English for easy clearance in the EU.
Why European Buyers Source This Product from Sino East Steel
Importing steel from China to Poland is a routine, well-understood process when you work with a manufacturer that has done it hundreds of times. Sino East Steel combines factory-direct pricing with export experience across the EU, so you avoid the margin stack of trading companies and the documentation delays that slow down first-time imports. Our export team prepares commercial invoices, packing lists, certificates of origin, and the EN 10204 3.1 mill certificates your quality department and customs broker expect. We also coordinate vessel booking from Tianjin/Xingang to Baltic ports, and for regular customers we can hold production slots so repeat orders keep your warehouse stocked without interruption.
Because we are the manufacturer, specification changes, coating requirements, packing instructions and delivery dates are agreed directly with the people who control the production line. This transparency is what distributors and contractors in Poland value most: one accountable partner, one set of documents, and material that matches the sample on every shipment.
Packaging & Delivery to Poland and the EU
Products are packed in seaworthy export condition: steel strapping, waterproof wrapping, and wooden or steel pallets where required, with clear marking for safe handling. For pipe and tube orders we use the standard export bundle format with plastic end caps on request. Sea freight to Polish and Baltic ports (Gdansk, Gdynia, Szczecin, Klaipeda) is arranged from Tianjin or Xingang port, with typical lead times of 15–25 days after production. FCL and LCL options are both available, and mixed-container consolidation is offered for regular customers who combine several product lines in one delivery.
Customization & Value-Added Services
Beyond standard supply, our finishing lines can prepare material for your exact production step: cutting to length, drilling, bevelling, threading, coating, marking and custom bundling per your drawings. Packaging can be adapted to your handling equipment — pallets, frames, slings or individual protective wrapping — and private labeling is available for distributors who resell under their own brand. For customers with regular monthly programs, we schedule production slots so that reorder quantities arrive on time, allowing you to run leaner stock without risking supply gaps on your own production line.
Technical Support & After-Sales Service
Our export engineers support you from specification to installation: confirming grade and size selections, advising on coatings and packing for your climate and handling equipment, and answering technical questions from your quality department. After delivery, we keep the batch records on file and can issue additional documentation, arrange replacement paperwork, or support you in the rare case of a claim. For Polish customers this means a single point of contact who knows your orders, your specifications and your delivery history — service that trading intermediaries rarely match.
Storage & Handling on Site
To protect the material between delivery and installation, store it off the ground on sleepers, keep it dry and allow air circulation between layers. Galvanized products should be separated from black steel to avoid zinc staining, and painted or polished surfaces should keep their protective wrapping until installation. When lifting, use fabric slings or spreader bars for long lengths to avoid damage. Our packing lists indicate bundle weights and lifting points, and our export team can advise on safe unloading at your warehouse or construction site.
How to Order & Request a Quotation
To receive a firm quotation, please send your required specification: grade and standard, dimensions, quantities (in tons or pieces), end use, and the destination port in Poland or the EU. Our export team replies within 24 hours with pricing, availability and a proposed shipping schedule. We work with T/T and L/C payment terms, and for established EU customers longer payment arrangements can be discussed on a project basis.
Request a quote: use the contact form, WhatsApp +86-186-2208-8833, or email [email protected].
Frequently Asked Questions
Can you supply square and rectangular tubes galvanized?
Yes. Hot-dip galvanizing after forming is available for all sizes, with coating weights up to 600 g/m² per EN ISO 1461. The galvanized tube can be supplied in standard or cut lengths.
What lengths do you produce?
Standard lengths are 6 m and 12 m; we also cut to exact lengths for railing posts, frame members and prefabricated components.
What documents do you provide with each shipment?
Each shipment includes the EN 10204 3.1 mill test certificate, packing list, commercial invoice and bill of lading. Inspection reports and third-party certificates (SGS, TUV, Bureau Veritas) can be arranged before loading if your project requires them.
Can you supply to Polish and European standards?
Yes. We regularly export to EN and DIN specifications used across the EU, including EN 10219, EN 39, EN 10210, EN 10305 and DIN 2440, in addition to ASTM and API standards. Tell us the standard your project specifies and we will quote accordingly.
What are your MOQ and lead times?
MOQ depends on the product and size — typically from 1 to 10 tons for standard lines. Production and shipping to Polish ports normally takes 15–25 days from order confirmation.
Do you ship to Polish ports and handle customs paperwork?
Yes. We ship FOB Tianjin/Xingang, CIF or CFR to Gdansk, Gdynia, Szczecin and other Baltic ports, and we prepare the export documentation (commercial invoice, packing list, bill of lading, certificate of origin, mill certificates) needed for import clearance in Poland.
Can we arrange a pre-shipment inspection?
Yes. Third-party inspection by SGS, TUV, Bureau Veritas or your own representative can be arranged before loading, and the inspection report is provided before the vessel departs.
Do you offer samples before a full order?
For most products we can provide small samples or cut pieces so your quality department can verify the material. Sample cost is credited against the first order for regular customers.
About Sino East Steel — Sino East Steel is a factory-direct manufacturer and exporter of carbon steel, galvanized steel and structural steel products, operating from a 65,000 m² production base in Tianjin, China. Since 2005 the company has built a steady export record across Europe, the Middle East and the Americas, supplying distributors, contractors and engineering companies that require consistent quality, complete documentation and dependable delivery. For Polish buyers, this means a single certified source for pipes, coils, sheets, bars and structures, with every shipment supported by mill test certificates and traceable batch records.
