Bundy tubes of more than 3 metric ton, including 3/16″, 1/4″, 5/16″ and 3/8″, were shipped on board and departed on 20th Oct, heading to the buyer’s port. These tubes are zinc plated to more than 480 hr NSS test (anti-corrosion capability), cut in 6 and 26 meters, coiled, and packed in carton boxes. Each […]
Tubes are coated with polymer materials such as PVF, nylon, and epoxy。
Double wall copper brazed (Bundy welded) steel tube, outside diameter 15.88mm (i.e. 5/8″).
Double wall Bundy welded steel tube.
Single wall or double wall Bundy tube zinc plated, trivalent chromated to colorful appearance.
Now have plenty of stock of 7×0.7mm Bundy tubes, with copper coated both inside and outside, ASTM A254 7×0.7mm Bundy Welded (Brazed) OD 7mm Wall 0.7mm
Requested urgently by a UK buyer, more than 70 kilograms of Bundy tube of OD .375″ were shipped directly from Xi’an to London by air.
A pallet of copper brazed steel tubing OD 1/4 inch was shipped by air to the client for urgent need. Tubes are packed in continuous coils, wrapped by plastic film, bundled by woven strips, and fixed on a steel pallet. The steel pallet is strong yet light (only 7 kilograms). That saves a lot of […]
This article introduces the theoretical calculation of Bundy tube burst pressure, based on Faupel Formula (burst pressure calculation for cylindrical container), and material properties shall be chosen in its respective material standards. The method can also be applies to most metal tube/pipe burst pressure calculations. Input Parameters D0, outside diameter of tube/pipe, in mm. t, thickness of […]
1. Standard & Practices: To comply with all requirements of ASTM A254 2. Hardness: (On ID 90 degree from Seam) Rockwell 30T 55 Maximum. 3. Flatten & Bend Test: A section of the tubing 2-1/2″ minimum long shall stand being flattened between parallel plates until the inside walls are in contact. The flattened section shall […]
SAE J527 defines the standard specifications for double walled steel tubing (copper brazed).
Double wall copper brazed steel tubing of 4mm OD and different wall thickness, cold drawn from 4.76mm OD and annealed.