①d=圓棒直徑;s=方、六角棒材截面寬度,矩形棒材的厚度;t=管材壁厚;單位/mm
②A、A50-标距
*性能可通過軋制淬火獲得。
ⓐ 351-固溶,通過拉伸控制量(設定1%~3%)消除應力+自然時效。拉伸後的產品不再矯直。(solution heat-treated, stress-relieved by stretching a controlled amount (permanent set 1 %,to 3 %) and naturally aged. The products receive no further straightening after stretching.)
ⓑ T3510-固溶,通過拉伸控制量(設定0.5%~3%對軋管)消除應力+自然時效。拉伸後的產品不再矯直。(solution heat-treated, stress-relieved by stretching a controlled amount (permanent set 1 %,to 3 %) and naturally aged. The products receive no further straightening after stretching.)
ⓒ T3511-與T3510相同,除了在拉伸後允許輕微矯直以符合标準公差。(same as T3510 except that minor straightening is allowed after stretching to comply with standard tolerances)