Gun-metal should not be utilized in temperatures above __________(a) 260°C(b) 550°C(c) 260°F(d) 150°FThis question was posed to me in an international level competition.My query is from Properties of Copper and its Alloys-2 topic in section Copper and its Alloys of Aerospace Materials & Processes

Gun-metal should not be utilized in temperatures above __________(a) 2

1.	Gun-metal should not be utilized in temperatures above __________(a) 260°C(b) 550°C(c) 260°F(d) 150°FThis question was posed to me in an international level competition.My query is from Properties of Copper and its Alloys-2 topic in section Copper and its Alloys of Aerospace Materials & Processes
Answer» CORRECT answer is (a) 260°C Best EXPLANATION: Gun-metal is an alloy metal that cannot be USED at all temperatures. More SPECIFICALLY, gun-metal should not be utilized in temperatures above 260°C. For certain components, it cannot be annealed as well.

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