Galvanized Pipe
Looking for durable, high-visibility bollards for traffic control or facility safety? You've come to the right place. As a direct factory with 20 years of steel manufacturing experience, GNEE Steel supplies premium 4"dia G.I Pipe Bollard Yellow & Black Stripe Painted Finish at factory prices. In this guide, we'll share 2026 pricing, technical specs, and help you calculate total landing costs, including freight and customs.
4"dia G.I (Galvanized Iron) Pipe Bollard with yellow & black stripe painted finish is a safety barrier made from hot-dip galvanized steel pipe. The 4-inch diameter ensures structural stability, while the galvanized layer prevents rust. The high-visibility yellow & black stripes meet global safety standards, making it easy to spot in parking lots, warehouses, or construction sites. Common steel grades for this bollard include Q235 and Q345, known for their strength and impact resistance.
Packaging and shipping
Technical Specifications of 4"dia G.I Pipe Bollard
Our bollards are engineered to meet strict safety and durability standards, with precise dimensions for universal use.
| Component | Specification | Standard Compliance |
|---|---|---|
| Pipe Diameter | 4" (101.6mm outer diameter) | EN 10255 |
| Pipe Thickness | 3.2mm (Schedule 40) | ASTM A53 |
| Steel Grade | Q235 / Q345 | GB/T 700 / GB/T 1591 |
| Galvanization | Hot-dip zinc coating (600g/m²) | ASTM A123 |
| Paint Finish | Yellow (RAL 1023) & Black (RAL 9005) stripe | ISO 12944-2 |
| Stripe Width | 150mm alternating stripes | OSHA 1910.22 |
| Overall Height | 600mm / 900mm / 1200mm (customizable) | - |
| Base Plate | 200×200×8mm steel plate (optional) | - |
Chemical Composition of 4"dia G.I Pipe Bollard Steel
The steel composition ensures the bollard can withstand impact and outdoor exposure without deformation.
| Element | Q235 (%) | Q345 (%) | Function |
|---|---|---|---|
| Carbon (C) | ≤0.20 | ≤0.20 | Enhances impact resistance |
| Silicon (Si) | ≤0.35 | ≤0.55 | Improves galvanization adhesion |
| Manganese (Mn) | ≤1.40 | ≤1.60 | Boosts tensile strength |
| Phosphorus (P) | ≤0.045 | ≤0.040 | Reduces brittleness |
| Sulfur (S) | ≤0.045 | ≤0.040 | Minimizes internal defects |
| Iron (Fe) | Balance | Balance | Base material for structural strength |
Mechanical Properties of 4"dia G.I Pipe Bollard
The bollard's mechanical performance ensures it can protect assets and prevent accidents.
| Property | Q235 | Q345 | Test Standard |
|---|---|---|---|
| Yield Strength | ≥235 MPa | ≥345 MPa | ASTM E8 |
| Tensile Strength | 375-500 MPa | 470-630 MPa | ASTM E8 |
| Elongation | ≥26% | ≥22% | ASTM E8 |
| Impact Strength | ≥34 J (at -20℃) | ≥34 J (at -40℃) | ASTM A370 |
| Load Capacity | 50kN (static load) | 60kN (static load) | EN 12767 |
2026 Pricing & Order Information for 4"dia G.I Pipe Bollard
Our factory-direct pricing offers cost savings, with volume discounts for large orders.
| Product | Height | Price (USD/unit) | Minimum Order (units) | Delivery Time |
|---|---|---|---|---|
| 4"dia G.I Pipe Bollard Yellow & Black Stripe Painted Finish | 600mm | $38-$42 | 100 | 7-10 days |
| 4"dia G.I Pipe Bollard Yellow & Black Stripe Painted Finish | 900mm | $45-$49 | 100 | 7-10 days |
| 4"dia G.I Pipe Bollard Yellow & Black Stripe Painted Finish | 1200mm | $52-$56 | 100 | 7-10 days |
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Volume Discounts (2026 Q2)
200-499 units: 6% discount
500-999 units: 10% discount
1000+ units: 15% discount
Why Choose GNEE's 4"dia G.I Pipe Bollard?
High Visibility: Yellow & black stripes meet OSHA safety standards, reducing accident risks.
Long Durability: 600g/m² galvanization + weather-resistant paint ensures 15+ years of service.
Easy Installation: Optional base plate with pre-drilled holes for quick mounting.
Customization: Available in custom heights and stripe patterns for specific needs.
For reliable, safety-compliant 4"dia G.I Pipe Bollard Yellow & Black Stripe Painted Finish, GNEE Steel delivers quality and value. Contact us today to get a detailed quote, request a sample, and secure your order for parking lot, warehouse, or construction site safety!
Get extra 3% off + free sea freight quote!
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