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Technical Specifications
Product Overview
Red Primed Steel Pipe Bollards are manufactured from high-quality carbon steel pipe conforming to ASTM A53 standards. These bollards provide effective vehicle access control and perimeter protection for commercial, industrial, and public spaces.
Key Features:
- Robust carbon steel construction for maximum durability
- Red oxide primer coating for corrosion protection
- High visibility red color for enhanced safety
- Welded base plate for secure installation
- Impact resistant design for vehicle protection
Manufacturing Process: Fabricated from seamless or welded steel pipe with precision cut ends, welded base plates, and professional primer application using electrostatic spray coating for uniform coverage.
Applications: Parking lot protection, building perimeter security, pedestrian area delineation, loading dock safety, retail storefront protection, and general traffic control applications.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM A53 Requirement |
|---|---|---|---|---|
| Carbon (C) | - | 0.30 | 0.18 | ≤ 0.30 |
| Manganese (Mn) | 0.29 | 1.06 | 0.65 | 0.29-1.06 |
| Phosphorus (P) | - | 0.05 | 0.025 | ≤ 0.05 |
| Sulfur (S) | - | 0.06 | 0.030 | ≤ 0.06 |
| Silicon (Si) | - | 0.40 | 0.20 | ≤ 0.40 |
| Copper (Cu) | - | 0.40 | 0.20 | ≤ 0.40 |
| Nickel (Ni) | - | 0.40 | 0.15 | ≤ 0.40 |
| Chromium (Cr) | - | 0.40 | 0.15 | ≤ 0.40 |
| Iron (Fe) | Balance | Balance | 98.2 | Balance |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 415 MPa min | 450 MPa | ASTM A370 | Room Temp |
| Yield Strength | 240 MPa min | 275 MPa | ASTM A370 | Room Temp |
| Elongation | 23% min | 28% | ASTM A370 | Room Temp |
| Hardness (Brinell) | - | 140 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | - | 75 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 200 GPa | ASTM E111 | Room Temp |
| Impact Energy (Charpy V) | - | 80+ J | ASTM E23 | Room Temp |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 7.85 | g/cm3 | 20°C | ASTM B311 |
| Melting Point | 1510-1540 | °C | - | DSC Analysis |
| Thermal Conductivity | 50.2 | W/m·K | 100°C | ASTM E1461 |
| Specific Heat | 460 | J/kg·K | 0-100°C | ASTM C351 |
| Linear Expansion | 11.7 | μm/m·K | 0-100°C | ASTM E228 |
| Electrical Resistivity | 170 | n|°¤m | 20°C | ASTM B193 |
| Magnetic Permeability | High | μ/μ₀ | Room Temp | ASTM A342 |
| Curie Temperature | 770 | °C | - | Ferromagnetic |
📏 Product Specifications
| Specification | Available Range | Standard Size | Custom Available | Tolerance |
|---|---|---|---|---|
| Outside Diameter (OD) | 114mm - 323mm | 168mm | Yes | ±1.0mm |
| Wall Thickness | 4mm - 12mm | 6mm | Yes | ±0.5mm |
| Height | 600mm - 1500mm | 1000mm | Yes | ±5mm |
| Base Plate Size | 200x200 - 400x400mm | 300x300mm | Yes | ±2mm |
| Base Plate Thickness | 10mm - 20mm | 15mm | Yes | ±1mm |
| Primer Coating | Red Oxide Primer | Red Oxide | Other colors | 50-75μm DFT |
| Anchor Bolts | M12 - M20 | M16 | Yes | Grade 8.8 |
| Standards Compliance | ASTM A53, BS EN 10025 | ASTM A53 | Multiple | Full compliance |
| Load Rating | 5kN - 50kN | 20kN | Calculated | Safety factor 3:1 |
| Installation Type | Surface, Embedded | Surface | Both | Standard fixing |
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Advanced Steel Pipe Construction
Manufactured using industrial-grade steel piping with precise diameter control and wall thickness specifications, ensuring maximum structural integrity and impact resistance for superior protection in high-traffic areas.
Professional Red Primer Coating
Specialized primer application process utilizing industrial-grade red coating materials, providing enhanced corrosion resistance while ensuring optimal surface preparation for additional finishing or immediate installation.
Precision Cut and Formed
Each bollard undergoes exact length cutting and precision end forming processes, guaranteeing consistent dimensions and smooth edges for safe installation and reliable performance in various mounting configurations.
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