All posts by: BundyTubes

About BundyTubes

3/16 Bundy Tubing Bundy Pipe

Tube: double wall Bundy welded steel tube. OD: 3/16″, 4.76mm. Wall Thickness: 0.5mm, 0.6mm, 0.028″, optional. Surface Coating: original copper/white zinc/colorful zinc/olive green zinc plated/PVF coated/Nylon coated/AlGal coated.

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ASTM A254 7×0.7mm Bundy Welded (Brazed) Steel Pipe OD 7mm Wall 0.7mm

Now have plenty of stock of 7×0.7mm Bundy tubes, with copper coated both inside and outside. Please don’t hesitate to contact us to get an quote! Product: copper brazed steel tube, double wall, Bundy welded; OD: 7mm; Wall: 0.7mm, 0.028″; MFG method: copper brazed (Bundy welded), followed by cold drawing and re-annealing; Mechanical properties: following […]

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OD 1/4 inch 6.35mm Copper Brazed Steel Tubing Airshipped

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 […]


Bundy Tube Burst Pressure Calculation Adopting Faupel Formula

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 […]

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GM Material Specification: EMS-99 Steel Tubing – Copper Brazed

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 […]


Bundy Weld SAE J527 Brazed Steel Tubing

SAE J527 defines the standard specifications for double walled steel tubing (copper brazed). Engineered Industries Limited offers double walled SAE J527 tubing with great quality, and very quick delivery. We have plenty of stock of regular size tubing, and offer flexible packing and shipping options based on many year experience of ocean freight and airway […]

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