Final answer:
Steel tubing is the kind of rigid tubing that can be flared with a double flare. It is commonly used in automotive and hydraulic applications.
Step-by-step explanation:
When it comes to rigid tubing, one type that can be flared with a double flare is steel tubing. This type of tubing is commonly used in automotive and hydraulic applications, as well as in plumbing systems.
Steel tubing is strong and durable, making it suitable for applications where high pressure and high temperature are involved. The double flare is a specific type of flare used to create a secure connection between the tubing and fittings.
Other types of rigid tubing, such as copper tubing and plastic tubing, may not be suitable for double flaring as they may not have the necessary strength or malleability.