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
ⓐ O-退火
ⓑ H111-在随後的拉伸或應變中經過退火和輕微應變硬化(小于H11)。(annealed and slightly strain-hardened (less than H11 ) during subsequent operations such as stretching or straitening)
ⓒ 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 0,5% to 3 % for drawn tube) 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)
