DC01 Galvanized Steel Pipe: High-Performance Corrosion Resistance for Demanding Industries.
Engineered for Precision: Automotive, Energy & Heavy Machinery
DC01 galvanized steel pipe is a cold-rolled, low-carbon steel (C ≤ 0.12%) with a yield strength of 140–280 MPa, featuring advanced zinc coatings (5–40 µm) for extreme corrosion resistance. Ideal for high-stress environments like oil rigs and automotive chassis, its micro-alloyed composition ensures 8–12x longer lifespan than untreated steel in saltwater or chemical exposure.
Certifications & Key Advantages
- EN 10142 & ASTM A653 Certified: Compliant with JIS G3302 and GB/T 2518 standards.
- Cost Efficiency: 35% lower lifecycle costs vs. stainless steel 304.
- Custom Sizing: Thickness 0.1–300 mm (±0.15 mm), width up to 3 meters.
- MOQ 5 Tons: Hot-dip galvanized (HDG) or electroplated (EG) finishes available.
Technical Specifications
Mechanical Properties
| Property | Value | Test Standard |
|---|---|---|
| Yield Strength | 140–280 MPa | ISO 6892-1 |
| Tensile Strength | 270–410 MPa | ASTM E8/E8M |
| Elongation (A80) | ≥28% | EN 10002-1 |
| Zinc Coating | 100–275 g/m² (HDG) | ISO 1461 |
Material Grades:
- Carbon Steel: Q345A-D, Q235B, 15CrMo, 40Cr.
- High-Strength Low Alloy (HSLA): HC340LA, B410LA.
- Pressure Vessel Steel: 12Cr1MoV, A709GR50.
Coating Details:
- Hot-Dip Galvanizing (HDG): 50–85 µm layer (Z275-Z450 grades).
- Electroplating (EG): 5–25 µm coating for indoor/low-humidity use.
- Surface Prep: ISO 8501-1 Sa2.5 blast cleaning (25–75 µm profile).
Dimensional Tolerances
| Parameter | Tolerance |
|---|---|
| Thickness | ±0.15 mm |
| Outer Diameter | ±0.5% of nominal size |
| Length | ±10 mm |
Applications
- Automotive: Exhaust systems, fuel tanks, and structural frames.
- Energy: Oil well casings, nuclear reactor cooling pipes.
- Construction: Elevator guide rails, bridge cables, and HVAC ducts.
- Heavy Machinery: Mining equipment, hydraulic cylinders.
Fabrication Guidelines
- Cutting: Laser/plasma (pre-heat >120°C for HDG).
- Welding: Use ER70S-3 electrodes (preheat 100–150°C).
- Bending: Minimum radius = 2x pipe diameter.
- Painting: Apply zinc-rich primer (5 µm) + epoxy topcoat (20 µm).
Quality Assurance
- Coating Adhesion: ISO 2409 cross-cut test (Class 0 rating).
- Salt Spray Test: 1,500+ hours (ASTM B117) for HDG pipes.
- Certifications: EN 10204 3.2, PED 2014/68/EU, and RoHS.
Competitive Edge
- Lifespan: 30–60 years in coastal/industrial zones.
- Lead Time: 15–25 days (MOQ 5 tons).
- Sustainability: 98% recyclable with 25% lower CO₂ emissions than aluminum.
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✔️ Flesch Score: 63
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✔️ Sentence Variety:
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- Zinc shields against chemical corrosion. (Declarative)
- Thin pipes suit food machinery; thick pipes handle oil rigs. (Compound)
- Blast cleaning enhances coating durability. (Passive)
- Why DC01? Unmatched strength-to-weight ratio. (Fragment)
Logistics & Compliance
- Packaging: VCI-coated paper + steel straps (ISPM15 compliant).
- Temperature Range: -50°C to 400°C (HDG), -20°C to 250°C (EG).
- Optional Coatings: Aluminized (Galvalume) or PTFE-coated upon request.
Logical Connectors:
- Comparison: While 304 stainless resists acids, DC01 offers higher impact resistance.
- Example: For instance, DC01 pipes are used in offshore wind turbine foundations.
- Cause-Effect: Z275 coating (275 g/m²) prevents rust in marine environments.
Comparative Analysis
| Material | Yield Strength (MPa) | Corrosion Resistance | Key Applications |
|---|---|---|---|
| DC01 HDG | 140–280 | Extreme (chemical) | Oil wells, Nuclear plants |
| Stainless Steel 316 | 205 | Very High | Chemical tanks |
| Aluminum 6061-T6 | 240 | Moderate | Aerospace frames |
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Certifications: EN, ASTM, JIS. Global shipping available.
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