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This post was last edited by humanrzm on 2016-5-13 at 11:11. To increase the popularity of the heat exchange forum, a \"Question of the Day\" activity has been introduced there; this helps to foster an active atmosphere for technical exchanges while also providing members with certain financial rewards. 【Daily Question】True or False: Austenitic stainless steels that contain no titanium or niobium stabilizing elements and have a carbon content of more than 0.03% should not be used in environments that may cause intergranular corrosion of the stainless steel when welded or subjected to heat treatment at temperatures above 400 degrees Celsius. ( ) Answer: Correct; for details, see Article 5 in 5.0.2 of HG/T20581-2011. Other content: AC version of heat exchange equipment – “One question per day” contest (prizes for participation; valid indefinitely) http://bbs.hcbbs.com/thread-1320941-1-1.html “【Mechanical Section】Recruitment for moderators & technicians; applications and referrals are welcome【Valid indefinitely】If you’re interested, come ahead! 】http://bbs.hcbbs.com/thread-1568748-1-1.html 【Mechanical Section】Collection of Essential Knowledge http://bbs.hcbbs.com/thread-1389197-1-1.html Haichuan’s “Thanksgiving Season” Sharing Event http://bbs.hcbbs.com/thread-1579172-1-1.html Selection of “Active Users and Weekly Stars” in the Mechanical Section http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1482753&page=1&extra=#pid14468655
This post was last edited by sikahuang on 2016-5-12 09:44. Austenitic stainless steels that contain no titanium or niobium stabilizing elements and have a carbon content of more than 0.03% should not be used in environments where intergranular corrosion of the stainless steel may occur, when welding or heat treatment at temperatures above 400 degrees is required. ( √ ) For details, see Article 5 in 5.0.2 of HG/T20581-2011.