E690钢900度淬火600度回火的拉伸曲线,工艺包括充氢态与未充氢态的:①900度保温30分钟淬火;②900度淬火600度回火1小时水冷;③900度淬火600度回火3小时水冷。拉伸速率为0.0096mm每分钟。
E690 steel 900℃ quenching and 600℃ tempering tensile curve, the process includes hydrogen-charged state and uncharged state: ①900℃ heat preservation for 30 minutes then quenching; ②900℃ quenching then 600℃ tempering for 1 hour then water cooling; ③900℃ quenching then 600℃ tempering for 3 hours then water cooling. The tensile rate is 0.0096 mm per minute.