Q195 Galvanized Pipe: High-Performance Corrosion-Resistant Steel Tubing.
Engineered for Versatility: Construction, Machinery & Utility Systems
Q195 galvanized pipe is a low-carbon steel pipe with a minimum yield strength of 195 MPa, featuring zinc coatings (5–20 µm) for enhanced corrosion resistance. Ideal for harsh environments, it offers 3–5x longer lifespan than untreated steel in applications like agricultural machinery, warehouse frameworks, and water supply systems.
Certifications & Key Advantages
- ASTM A53/A123 & GB/T 3091 Certified: Compliant with JIS G3442 and DIN 17162 standards.
- Cost Efficiency: 40% lower lifecycle costs than stainless steel alternatives.
- Custom Sizing: Thickness 0.1–300 mm (±0.15 mm), length up to 12 meters.
- MOQ 1 Ton: Available in hot-dip galvanized (HDG) or electroplated (EG) finishes.
Technical Specifications
Mechanical Properties
| Property | Value | Test Standard |
|---|---|---|
| Yield Strength | ≥195 MPa | ASTM E8/E8M |
| Tensile Strength | 315–430 MPa | ISO 6892-1 |
| Elongation (A50) | ≥22% | EN 10002-1 |
| Zinc Coating | 60–300 g/m² (HDG) | ASTM A123 |
Coating Details:
- Hot-Dip Galvanizing (HDG): 85 µm average coating (±10%) for outdoor use.
- Electroplating (EG): 5–15 µm coating for indoor/low-corrosion environments.
- Surface Prep: ISO 8501-1 Sa2.5 blast cleaning (12–75 µm profile).
Dimensional Tolerances
| Parameter | Tolerance |
|---|---|
| Thickness | ±0.15 mm |
| Outer Diameter | ±1% of nominal size |
| Length | ±10 mm |
Applications
- Construction: Scaffolding, roof trusses, and HVAC ducting.
- Agriculture: Irrigation systems, greenhouse frames, and machinery parts.
- Utilities: Water pipelines, electrical conduits, and fencing.
- Automotive: Exhaust components and trailer chassis.
Fabrication Guidelines
- Cutting: Plasma or laser (pre-heat >100°C for HDG).
- Welding: Use ER70S-6 electrodes with 15–20°C preheat.
- Bending: Minimum radius = 3x pipe diameter (cold-formed).
- Painting: Apply epoxy primer (5 µm) + polyurethane topcoat (20 µm).
Quality Assurance
- Coating Adhesion: ISO 2409 cross-cut test (Class 1 rating).
- Salt Spray Test: 1,000+ hours (ASTM B117) for HDG pipes.
- Certifications: Mill Test Reports (EN 10204 3.1), CE, and RoHS.
Competitive Edge
- Lifespan: 25–40 years in moderate climates.
- Lead Time: 10–15 days (MOQ 1 ton).
- Sustainability: 100% recyclable with 35% lower CO₂ footprint than PVC.
Logistics & Compliance
- Packaging: Waterproof paper + steel straps (IPPC-ISPM15 compliant).
- Temperature Range: -30°C to 300°C (HDG), 0°C to 200°C (EG).
- Optional Coatings: Powder-coated or aluminized (ALUZINC) upon request
Comparative Analysis
| Material | Yield Strength (MPa) | Corrosion Resistance | Key Applications |
|---|---|---|---|
| Q195 HDG | ≥195 | High (outdoor) | Scaffolding, Water pipes |
| Stainless Steel 304 | ≥205 | Very High | Food processing |
| PVC | N/A | Moderate | Non-pressure plumbing |
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Certifications: ASTM, JIS, DIN. Global shipping available.
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Supplier of various types of carbon steel
Luo Kaiwei Steel Company is a comprehensive steel supplier that produces a variety of carbon steel plates, carbon steel pipes, galvanized steel, carbon steel coils, and steel profiles.
