①d=圓棒直徑叽渡;s=方茧纵、六角棒材截面寬度,矩形棒材的厚度酣殊;t=管材壁厚郭销;單位/mm
②A、A50-標(biāo)距
? O-退火
? H111-在隨后的拉伸或應(yīng)變中經(jīng)過退火和輕微應(yīng)變硬化(小于H11)钱雷。(annealed and slightly strain-hardened (less than H11 ) during subsequent operations such as stretching or straitening)
? T3510-固溶骂铁,通過拉伸控制量(設(shè)定0.5%~3%對軋管)消除應(yīng)力+自然時效。拉伸后的產(chǎn)品不再矯直罩抗。(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相同拉庵,除了在拉伸后允許輕微矯直以符合標(biāo)準(zhǔn)公差。(same as T3510 except that minor straightening is allowed after stretching to comply with standard tolerances)