For a tube material specification of SA-213-T11, what would be an applicable temperature referenced?

SA-213-T11 refers to a specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. This material is known for its high-temperature strength and good oxidation resistance, making it suitable for applications in the power generation industry.

The specific temperature referenced in the question typically concerns the maximum allowable temperature at which the material can operate effectively while maintaining integrity and performance. For the SA-213-T11 specification, it is common to reference a maximum operating temperature around 400°C, which is consistent with the characteristics of the material.

Option B, 212°C, actually represents the boiling point of water at atmospheric pressure, which does not reflect the specific performance parameters of the SA-213-T11 material under high pressure conditions typically found in power engineering applications. While it might be a practical temperature for some operations, it does not align with the higher temperature capabilities of the T11 alloy.

Therefore, the most appropriate applicable temperature for SA-213-T11, considering its design and performance in critical high-temperature applications, would be closer to 400°C rather than 212°C, making that the more correct answer in this context.