don't do it! cryogenic annealing is done to force all of the carbon in the stainless into a phase known as martensite. When your welder heats the metal the carbon will come back out (google for a phase diagram of stainless steel, you will see this), and tend to precipitate near the boundary of the weld zone, you will end up with a region with a fairly high concentration of austenite, which is brittle and tends to crack. Sooner or later the bar will break. The torsion bar is a piece of sophisticated engineering. A lot of expertise, time and money was spent to get it right, for good reason. Some guy who calls himself a 'metals engineer' and thinks he is looking at a $40 chunk of stainless rod is in way over his head. Pete Cameron vin 3579 ________________________________ From: dmcnews@xxxxxxxxxxxxxxx on behalf of jrc2905 Sent: Thu 7/26/2007 10:57 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: [DML] Driver's side torsion bar update I have been sending emails to my welder who was going to repair my driver's torsion bar. I have been getting no response. So today I drove down to see him. He has been moving his operations to a new location and has not been able to get online access at his plant and has been loosing most of his emails. He saw my van, thought I was the cable guy and ran out to greet me. We talked and he has not received the information I sent him. I did get an email from someone who provided me with the type of stainless steel the bar was made from, I cannot find that email and need to get it to my welder, so I hope that person reads this and can resend it to me. I have the production process information, which I am sending him. He said he was not working on it because he would like to know what the metal was before welding it and as far as making a new bar he would get to it but he figured it was an item worth about forty dollars. When I told him what I had just paid for a used drivers torsion bar he almost fell down, that changed everything. He would like to weld it this Sunday if I can find out what the bar is made from. He now knows there is value to this item and it may well be worth his time and effort to fabricate a replacement bar. He is a metals engineer. The information I had received stated that it was one of two types of stainless steel, so if you could resend that information I will keep on with this project. To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/