①d=圆棒直径；s=方、六角棒材截面宽度，矩形棒材的厚度；t=管材壁厚；单位/mm
②A、A50-标距
ⓐ O-退火
ⓑ H111-在随后的拉伸或应变中经过退火和轻微应变硬化(小于H11)。(annealed and slightly strain-hardened (less than H11 ) during subsequent operations such as stretching or straitening)
ⓒ T3510-固溶，通过拉伸控制量(设定0.5%~3%对轧管)消除应力+自然时效。拉伸后的产品不再矫直。(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-与T3510相同，除了在拉伸后允许轻微矫直以符合标准公差。(same as T3510 except that minor straightening is allowed after stretching to comply with standard tolerances)
ⓔ T4510-固溶，通过拉伸控制量(设定0.5%~3%对轧管)消除应力+自然时效。拉伸后的产品不再矫直。(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.)
ⓕ T4511-与T4510相同，除了在拉伸后允许轻微矫直以符合标准公差。(same as T4510 except that minor straightening is allowed after stretching to comply with standard tolerances)
ⓖ T6510-固溶，通过拉伸控制量(设定0.5%~3%对轧管)消除应力+人工时效。拉伸后的产品不再矫直。(solution heat-treated, stress-relieved by stretching a controlled amount (permanent set 0,5% to 3 % for drawn tube) and then artificially aged. The products receive no further straightening after stretching.)
ⓗ T6511-与T6510相同，除了在拉伸后允许轻微矫直以符合标准公差。(same as T6510 except that minor straightening is allowed after stretching to comply with standard tolerances)
