weldability of high - strenght quenched and tempered steel

By jwright650 (*****)

Date 01-23-2009 19:48

You may want to check Annex I in AWS D1.1:2008, it is a guideline for determining preheat and interpass temps.

By richard castillo Date 01-23-2009 20:07

ok. but the problem is that it is too general about the perheating temperatures, and i want to know the real effect of it on the weldability, and another problem is that i don`t have information about interpass temperatures that is required for every condition like thickness and high relative humidity.

but anyway, thankyou very much.

Pd: what kind of test must apply to find out the modified on microstructure and the mechanical properties of ASTM A 514 steel also well known like SUMITEN 780S

By ravi theCobra (**)

Date 01-23-2009 23:21

When we did A 514   we had two temp sticks - 225' F   +   250 ' F depending on   thickness

We had a limit   of   .1 % moisture in the electrodes   and   we did   immediately after and 7   days after   heat off   -

our   time limit was to open cans   and what wasn't used in   4   hours was   discarded - we broke flux off and put

samples in bottles to check for the   < .1 %   moisture

By GRoberts (***)

Date 01-24-2009 18:39

Your best bet may be to contact Alex Wilson at Mittal steel. He has been involved in producing A514 (Trade name T-1) steel a long time and is one of the worlds foremost experts in how it should be handled.

By Nanjing Date 03-01-2009 12:11

Sad state of affairs when someone from a western country has got to contact an Indian company to to get technical advice (albeit an expat). Is it not supposed to be the other way round?

By G.S.Crisi (****)

Date 03-02-2009 19:15

No, Najing. If you notice, Richard (why not Ricardo?) is from Peru, which is for sure a western country, being located on the western part of South America, but it's also an underdeveloped one, as is mine.
Giovanni S. Crisi
Sao Paulo - Brazil

By cwi49cwe (*)

Date 09-20-2009 22:04

The only sad state of affairs is the indivdual who thinks he or she is to good or to smart to help another in distress, at least he is asking for help, I applaud him for that and feel honor if I can in some small way assist........ but looking at the date I think my contribution might be to late, but here goes, Go to
www.thefabricator.com, Article Archive, author; Dean C. Phillips, June 12, 2007, great article
also,,,,, call your Lincoln Electric dealer and INSIST that he get you a copy of pamphlet # M720, Oct. 86,
also go to www.google.com and for the subject type in Welding ASTM A514 , or just enter ASTM A514,
or just enter " quenched and tempered steel " or if your finances allow, buy a copy of the ASM Handbook, volume #6 ---WELDING--- you won't be disappointed.

By ssbn727 (*****)

Date 09-24-2009 23:41 Edited 09-25-2009 01:40

In here (The forum) is a .pdf file that has been uploaded many times in here in different threads... All you have to do is to use the search function and type either A-514 steel or T-1 steel and you should be able to find different threads on this steel as well as any other topic you may be curious about as it pertains to welding.

USE THE SEARCH FUNCTION!!!

Here are some web sites in case you're too lazy or are internet illiterate:

http://www.thefabricator.com/ArcWelding/ArcWelding_Article.cfm?ID=1636

http://www.thefabricator-digital.com/thefabricator/200706/?pg=39

http://www.hobartbrothers.com/aboutus/welding_astm514/

http://www.tpub.com/content/misc_manuals_1/TB-9-2510-242-40/TB-9-2510-242-400060.htm

http://www.bisalloy.com.au/Products.asp

http://www.ssab.com/Global/SSAB/SSAB_North_America/A514%20Grade%20B%20Brochure%2006-25-08.pdf

http://www.ssab.com/Global/SSAB/SSAB_North_America/A514%20Grade%20S%20Brochure%2006-25-08.pdf

http://hazwelding.wordpress.com/2009/01/09/welding-quenched-tempered-material-high-strentgh-steel-untuk-kaki-jack-up-rig/

http://www.weldit.com/tips/9808-40.pdf

http://www.ci.corpus-christi.tx.us/files/g79/050200.pdf

http://www.engr.uky.edu/~ymzhang/Papers/TrendsPaper2.pdf

http://web.mit.edu/1.51/www/pdf/chemical.pdf

http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA072054&Location=U2&doc=GetTRDoc.pdf

http://weldingmag.com/processes/news/wdf_31971/

http://www.engnetglobal.com/c/c.aspx/SPE006/productdetail/alloy_steel

http://www.shotpeener.com/library/pdf/1984000.pdf

http://www.simulia.com/download/solutions/industrial_equipment_cust_references/industrial_millerpark_auc06_engsys.pdf

I found all of this just in the las half of an hour and this was just for a query written as: "A-514 steel"... Okay maybe an hour but, my point is that it doesn't take a rocket scientist to find the info you're looking for!!! You could just imagine what you could find if did more than one query like: "Quenched and Tempered Steel" or "T-1 Steel" I mean, how lazy can someone be???

The internet is for the entire world so, please do not give me the excuse that you're from Peru or Katmandu because as long as you have access, you can find all of this too!!!

Respectfully,
Henry

Respectfully,
Henry