Rolling-type flaring tools are used to flare which types of tubing?

• A. Plastic, rubber, and soft copper
• B. Soft copper, aluminum, and brass
• C. Stainless steel, carbon steel, and rigid plastic
• D. Only stainless steel

Answer: (B)

Rolling-type flaring tools are specifically designed to create flares in materials that can withstand deformation without cracking. Soft copper, aluminum, and brass are all metals that possess malleability, allowing them to be easily shaped when using this type of tool.

Soft copper and aluminum can be flared effectively because these materials can handle the rolling action of the tool, which requires a degree of ductility. Brass, while slightly harder than copper or aluminum, is also malleable enough to be formed into a flare with a rolling type tool. This capability is essential for ensuring a proper seal in fluid line applications.

Other materials like stainless steel and carbon steel, though they can also be flared, generally require different types of flaring tools due to their hardness and tendency to work-harden, making them less suited for rolling-type flaring tools. Therefore, the correct selection of tubing type that can appropriately be flared with rolling-type tools leads to the understanding that soft copper, aluminum, and brass are the ideal choices for this process.