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
*性能可通过轧制淬火获得
ⓐ 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)
ⓒ T66-固溶热处理,然后人工时效-通过特殊的工艺控制,达到高于T6的机械性能。(solution heat-treated and then artificially aged - mechanical property level higher than T6 achieved through special control of the process (6000 series alloys))
ⓓ T832-溶液热处理,控制一定量冷加工后人工时效(适用于6063拔管)。(solution heat-treated, cold worked a controlled specific amount and then artificially aged (applies to 6063 drawn tube))