Changzhou Joyruns Steel Tube CO.,LTD
                                                                                                           
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26 Years
Since 2000
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4.76mm x 0.6mm Electro Welded Copper Coated Steel Bundy Tubing for Refrigeration Systems

Price Negotiable
Price: Negotiable
MOQ: 2Tons
Delivery Time: 10days
Brand: Joyruns
Product Description
Product Overview
4.76mm × 0.6mm electro-welded single wall refrigeration tubing with both-side copper-coated steel construction. This Bundy tubing is specifically designed for household refrigeration applications, offering reliable performance and durability.
Manufacturing Process
Bundy single wall tubing is manufactured by continuously forming a single low carbon steel strip into a tubular shape and welding the adjoining edges using a high-frequency induction welding process. Through strict process controls, the internal weld bead is minimized and all external flashing is removed.
Key Manufacturing Features
  • High-frequency induction welding for consistent quality
  • Minimal internal weld bead for smooth flow
  • Complete removal of external flashing
  • Inline corrosion-resistant coating application
Coating Options & Specifications
Plain Tube
Supplied with slightly oiled outside surface to improve oxidation resistance. Recommended for dry storage away from humidity and corrosive agents.
Electrolytic Both-Side Copper Coating
Steel strip is copper coated on both sides with a copper layer ≥2µm. The welding seam area on the outside surface remains uncoated due to scarfing operation.
Hot Dip Zinc Coating
Outside surface coated with zinc layer ≥70 grams per square meter (UNI EN ISO 1460/97). Withstands >72 hours in salt spray fog test before showing red rust (UNI ISO 9227).
Single Wall Steel Tubing OD & WT Tolerance
Single wall steel tubing OD and WT tolerance specifications chart
Manufacturing Facility
Modern manufacturing workshop for steel tubing production
High-frequency induction welding equipment in operation
Quality control inspection of finished steel tubing
Laboratory Testing Equipment
Advanced laboratory testing equipment for material analysis
Precision measurement instruments for quality assurance
Salt spray testing chamber for corrosion resistance evaluation
Microscopic examination equipment for weld quality inspection
Tensile strength testing machine for material durability
Coating thickness measurement device for quality control
Packaging & Shipping
Professional packaging process for steel tubing protection
Organized storage of packaged steel tubing ready for shipment
Quality packaging materials ensuring product integrity during transit

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changzhou Joyruns Steel Tube CO.,LTD
Location No.143 Qingyang North road,Tianning district. Changzhou
Contact Person Lee

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