All posts by: BundyTubes

About BundyTubes

How Are Brake Lines Made – Steel Tubing

Brake line is used for automobiles to transfer hydraulic pressure to the brake pads from cylinders. Usually brake system is designed to maintain a low or medium pressure, and the typical steel brake line tube called Bundy tube is used widely in the world. Bundy tube is named by the name of whoever invented a […]

Tube Tech

SAE J526 Welded Low-Carbon Steel Tubing

1. Scope SAE J526 Standard covers welded single-wall low-carbon steel tubing intended for general automotive, refrigeration, hydraulic, and other similar applications requiring tubing of a quality suitable for bending, flaring, beading, forming, and brazing. 2. References 2.1 Applicable Publication—The following publication forms a part of this specification to the extent specified herein. Unless otherwise indicated, the latest […]


GM123M GM124M Standard – Automotive Steel Tubing For Fluid Handling

1 Scope These specifications cover two types of steel tubing suitable for automotive uses. There are requirements for the base metal, the optional coating materials, and the coated tubing. These requirements are applicable to the product coming out of the tube mills and the coating application lines, which are sometimes separate facilities. This tubing is […]