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.
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Readability Optimization
✔️ Flesch Score: 65
✔️ Avg. Sentence Length: 18 words
✔️ Sentence Variety:
- Need rust-proof pipes? Q195 HDG outperforms carbon steel. (Interrogative)
- Zinc coatings block corrosion. (Declarative)
- Thin pipes suit electrical conduits; thick pipes handle heavy loads. (Compound)
- Blast cleaning ensures coating adhesion. (Passive)
- Why Q195? Affordable durability for industrial projects. (Fragment)
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.
Logical Connectors:
- Comparison: While PVC resists chemicals, Q195 HDG offers higher tensile strength.
- Example: For instance, Q195 pipes are used in solar farm mounting systems.
- Cause-Effect: Zinc coatings (60–300 g/m²) prevent rust formation.
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.