| 摘要 |
PROBLEM TO BE SOLVED: To provide a high strength copper alloy tube having high pressure resistance and good processability even when thinned, and a manufacturing method therefor.SOLUTION: A high strength copper alloy tube has a component composition containing C0:0.13 to 0.35 mass%, P:0.02 to 0.10 mass% and the balance Cu with inevitable impurities, and has a sum of average area ratios of an aggregate structure of each orientation of a Brass orientation {011} <211>, a S orientation {123} <634> and a Copper orientation {112} <111> measured by a crystal orientation analysis, an average crystal grain size of 40 μm or less of 20% or less, an average deposition diameter of 5 to 12 nm and a deposition number density of the deposition having the diameter of 1 to 100 nm of 4000/μmor more. |
