Square Hollow Sections (SHS)

1. Raw Material Preparation: 

Inspection and cutting of high-quality steel strips (carbon/stainless/alloy steel) to required dimensions.

2. Forming: 

Cold-rolling steel strips into square cross-sections using precision forming equipment, ensuring uniform shape and dimensions.

3. Welding: 

Submerged arc welding (SAW) or electric resistance welding (ERW) to create seamless, durable longitudinal seams—critical for Welded Structural pipe performance.

4. Sizing & Straightening: 

Calibration to meet tolerance standards (EN 10219/ASTM A500) for roundness, straightness, and side equality.

5. Surface Treatment: 

Application of hot-dip galvanizing, painting, or powder-coating based on regional environmental needs and customer requirements.

6. Customization (if required): 

Pre-cutting, drilling holes, or adding special coatings (anti-rust, fire-resistant) for easy on-site assembly.

7. Quality Inspection: 

Visual checks, dimensional measurements, and mechanical property testing (tensile, yield strength) to ensure compliance.

8. Packaging: 

Bundling and protection before shipping.

High Strength-to-Weight Ratio: 

Delivers robust load-bearing capacity while reducing overall construction weight—ideal for building construction steel pipe.

Easy Fabrication: 

Flat surfaces enable easy alignment, welding, cutting, and assembly with other steel components, saving on-site time.

Corrosion Resistance: 

Hot-dip galvanized or stainless steel options withstand Middle East salt spray, Southeast Asian humidity, and African tropical moisture.

Aesthetic Appeal: 

Clean square shape suits visible structures like architectural façades, canopies, and street furniture.

Rigidity & Durability: 

Uniform cross-section ensures stable performance in structural frameworks, bridges, and machinery frames.

Cost-Effective: 

Efficient material use optimizes project budgets, fitting diverse regional construction needs.

Our SHS products comply with global and regional standards for seamless project approval:

• International Standards: EN 10219, ASTM A500, JIS G3463, ISO 9001
• Regional Compliance: SASO (Middle East), SONCAP (Africa), SNI (Indonesia), TIS (Thailand)
• All orders include material test certificates (MTC), welding procedure qualification records (WPQR), and compliance documents for customs clearance.

Packaging

• SHS are bundled with high-strength galvanized steel straps to prevent deformation during transit.
• Hot-dip galvanized units are wrapped in moisture-proof film to protect against humidity (Southeast Asia/Africa) and dust (Middle East).
• Woven bags or nylon plastic outer packaging can prevent bumps and getting wet
• Clear English labeling includes product name, grade, specs, batch number, and handling instructions.

Shipping

• Lead Time: Standard orders (≤100 tons): 10-18 working days; Bulk orders (＞100 tons): 15-20 working days; Customized orders (pre-cut/drilled): 15-25 working days.
• Logistics Partners: Maersk, CMA CGM (global), Aramex (Middle East), SICEPAT (Southeast Asia), GIGL (Africa).
• Delivery Coverage: Port-to-port, door-to-door for major cities, and inland transport to remote construction sites.

RFQ Question: Can your galvanized SHS withstand Dubai’s desert heat, and what’s the delivery time?

Answer: Yes, our hot-dip galvanized SHS (ASTM A500 Gr B) resists 55°C+ desert temperatures and sand erosion.

RFQ Question: How to use SHS for Thailand’s coastal bridge—does it resist saltwater corrosion?

Answer: We recommend stainless steel 316 or 3PE-coated SHS for Thailand’s coastal bridges. They resist saltwater corrosion, meet TIS standards, and are easy to weld on-site.

RFQ Question: What’s the lead time for 50 tons of SHS (200×200mm) for Nigeria’s building project?

Answer: Lead time for 50 tons of SHS (200×200mm, ASTM A500 Gr B) is 10-15 working days. The product is SONCAP-approved, hot-dip galvanized for humidity resistance, and includes clearance support.

RFQ Question: Is your SHS suitable for Kenya’s rural school construction (outdoor use)?

Answer: Our hot-dip galvanized SHS (S235JR) is ideal for Kenya’s outdoor school construction. It resists tropical rains, is lightweight for easy transport to rural areas, and has a 8-year corrosion warranty.

RFQ Question: How to assemble SHS for Malaysia’s high-rise façade—do you provide guidelines?

Answer: We supply detailed English installation guides for SHS high-rise façades (including welding/joining tips). The powder-coated SHS resists Malaysia’s humidity, meets SNI standards, and delivers in 14-20 working days. On-site technical support is available.