4×0.55mm ASTM A254 DC04 Zinc Coated Steel Bundy Tube for Refrigerator Condenser - 290MPa Tensile Strength
Price:
Negotiable
MOQ:
2Tons
Delivery Time:
10days
Brand:
Joyruns
Product Description
Product Overview
4×0.55mm ASTM A254 DC04 low carbon steel tubing with zinc coating, specifically designed for refrigerator condenser applications. Manufactured using electric resistance welding (ERW) technology for superior seam reliability and performance.
Key Features
- High-frequency induction welding for stable, reliable seams
- Zinc galvanized coating providing exceptional corrosion resistance
- Salt spray test performance: 240 hours standard, up to 360 hours available
- Low carbon steel composition for optimal formability and strength
- Available in various coating options: plain, zinc-coated, or copper-coated
Technical Specifications
Chemical Composition
| Element | Content |
|---|---|
| Carbon (C) | 0.08% |
| Silicon (Si) | 0.03% |
| Manganese (Mn) | 0.03% |
| Phosphorus (P) | 0.02% |
| Sulfur (S) | 0.02% |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 290 MPa |
| Yield Strength | 180 MPa |
| Elongation | 20% |
| Salt Spray Test | 48 hours |
| Inside Surface Cleanliness | 20 g/m² |
Coating Options
Plain Tube
Supplied with slightly oiled outside surface to improve oxidation resistance. Requires storage in dry conditions away from humidity and corrosive agents.
Electrolytic Copper Coating
Steel strip copper-coated on both sides with ≥2µm copper layer. Welding seam area remains uncoated due to scarfing operation.
Hot Dip Zinc Coating
Outside surface coated with zinc layer ≥70 g/m², providing >72 hours salt spray resistance before red rust appears (UNI ISO 9227).
Tolerance Specifications
Manufacturing Facility
Quality Assurance
Packaging & Shipping
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Company
Changzhou Joyruns Steel Tube CO.,LTD
Location
No.143 Qingyang North road,Tianning district. Changzhou
Contact Person
Lee