a.Jingda Double-Wall steel brazed tubing is the economical alternative to seamless tube. It has many of the same qualities as seamless tubing and is suitable for most high pressure applications.
b.This brazed Double Wall steel tubing is manufactured to YB/T4164，SAE J527.
c.Custom sizes may be manufactured at customer request. Double Wall steel tubing is available in coils or can be cut-to-length.
6.Corrosion Protection
Zinc Galvanized Tubing Zinc galvanized double wall steel tube has better corrosion protection than non-galvanized double wall steel tube which is copper brazed. Appearances of following colors are available after passivation with different corrosion protection performances.
PVF Coated Tubing PVF (Polyvinyl Fluoride) amour protects tubes from corrosion For far longer time than zinc coated tubes.
7.Application: a.Auto-braking system Hydralic brake line tubing,brake tubing,brake pipes,power steering,etc
b.Auto-Oil system Fuel ines,tranamission oil,cooler lines,etc
c.Refrigerators Air conditioning tube,compressor,eraporator.etc
Standard
YB/T4164 is published for double wall brazed steel tubes (Bundy Tubes) used for refrigeration, A/C, general automotive, hydraulic and other similar applications requiring tubing of suitable quality for bending, flaring, forming, and brazing. The dimensions, mechanical properties, requirements for coating, salt mist and double-flare tests of YB/T4164 are similar to US standards. While the chemical composition, flattening, bending, pressure proof tests and inside cleanliness of YB/T4164 are lower than that of US standards. Generally the specifications of YB/T4164 are stricter than ASTM A254 and SAE J527. The latest revisions of these standards are: YB/T4164-2007, ASTM A254-12, and SAE J527-201306. Note: Please refer to the newest updates of these specifications.
Our Company
Jingda (Jingzhou) Automotive Co., Ltd. is located in Jingzhou high-tech development zone, covering 130,000㎡.Now the company owns 25 double wall brazed tube mills and 8 production lines including Zinc plating, PVF coating ,PA12 extruding and hot-dip Galfan + Al-rich epoxy coating processes.
Packing & Delivery
Our most professional packaging
Transport 20'container
Transport 40' container of big coil tubing
Our Service
1) We have more than 30 years export experience to Brazil, American, India, Germany, Mexico,UK etc. please rest assure at our quality. 2) Prompt shipment : By reputed shipping line and professional documents . 3) Cargos photo : before and after loading into container . 4) Packing : new and strong seaworthy packing, also can based on buyer's special request . 5) Best service after shipment with Email . 6) Feedback Email after end-users . 7) Can provide free samples for your check the quality . the samples could send out immediately. 8) On-time delivery : production delivery time need about 30-40days after receiving the order.
