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
ⓐ 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)
ⓒ T66-固溶熱處理,然後人工時效-通過特殊的工藝控制,達到高于T6的機械性能。(solution heat-treated and then artificially aged - mechanical property level higher than T6 achieved through special control of the process (6000 series alloys))
ⓓ T832-溶液熱處理,控制一定量冷加工後人工時效(适用于6063拔管)。(solution heat-treated, cold worked a controlled specific amount and then artificially aged (applies to 6063 drawn tube))