Blogs

Coiled Bundy Tubes Zinc Plated for Brake Lines

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 […]

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 […]

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 […]