What type of Mig Fluxcore wire for T1 Steel?

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Next week, I am welding a project which is all T1 steel. The flux we have now will most likely crack due to the hardness of the steel. We are preheating up to 375 deg fer to help with the prevention of cracking and may either post heat or cover to slow the down the cooling process.Our gas suppliers apparently have not come up with an answer. I have heard 110 flux core might be the answer? (not 110 volt LOL) We are most likely going to be running .045 with CO2. (3/4 fillet weld size)Any help appreciated. Thx.
Reply:E71T-11 i allways keep a 33lb spool on hand if i run out of solid wire or gas and i did today
Reply:Originally Posted by ed macE71T-11 i allways keep a 33lb spool on hand if i run out of solid wire or gas and i did today
Reply:Im not sure if I see the 11 on Esab's website? They might have different wire codes?EsabWe dont deal with them but Im sure we could or find a similar wire.EDIT: I think I just found it here... Esab DUAL SHIELD T-100Last edited by oxygen454; 03-19-2011 at 12:13 AM.
Reply:How to weld T1A must read for anyone welding T1http://www.hobartbrothers.com/pdf/da...xcel_Arc71.pdfThis is what we use for T1 and general welding and has worked well. We peen 100% of our stressed T1 projects.Millermatic 200Hobart Handler 120Victor O/A & Ramco BandsawLincoln 225 ACSnapOn AD HoodMiller XMT304/22AHypertherm Powermax 1650 G3Lincoln Idealarc DC600 w/Extreme 12 VSMiller Digital Elite "Joker"
Reply:Could you please tell us the thickness of the plate?Cannot make comparisons without knowing the thickness of plate being welded.There are MANY FCAW wires available based on plate thickness.  Thanks.Also what position? Were there all position welds or only vertical up etc.,. Thanks.Type A,B,or C T1 steel? Check out, http://www.arcelormittal.com/platein...0TO%20WELD.pdfQUOTE from above."Flux cored arc welding may be done with an Mn-Ni-Mo electrode, designated E110T5-K3, or an Mn-Ni-Cr-Mo electrode designated E110T5-K4, and with appropriate shielding gas, per AWS A5.29 (latest edition). (2)  The electrode classification system is described in AWS A5.29 and designates the weld metal strength, toughness and composition.  For example, the above- suggested electrode E110T5-K3 designates a flux cored electrode capable (depending on welding procedure) of depositing weld metal having a minimum tensile strength of 110 ksi, a Charpy V-notch toughness of 20 ft-lbs. at –60oF, and a specific Mn-Ni-Mo composition. NEEDS  AWS A5.29 updating though.I would try to get a copy of AWS A5.29 that is up to date (latest version)Different brands still can be considered.Last edited by Donald Branscom; 03-19-2011 at 02:47 PM.AWS certified welding inspectorAWS certified welder
Reply:Oops! Sorry Oxygen 454 I missed that post that had the plate thickness specified.Thanks.After looking around on the net I would really want an up to date copy of the AWS 5.29Just so I really know what the rules are.If the LWS does not know .One phone call and that AWS 5.29 could be on the way to you right away.Maybe a forum member has it and can help you out. It cost $52.00 for the AWS 5.29 publication but that is just the filler metal properties and what I think is needed is the procedure and specifications for welding T1 steels. That document is a "B" document on the AWS website.Last edited by Donald Branscom; 03-19-2011 at 03:06 PM.AWS certified welding inspectorAWS certified welder
Reply:On this web page of the AWS website there is a discussion about all of this.Go to the bottom of the page.http://www.aws.org/cgi-bin/mwf/topic_show.pl?tid=8979The 2006 D1.1 is the up to date version and on 4.8 AND 4.9 is the preheat info etc.,.Then you can get the correct FCAW filler wire for the thickness of plate and position.The ASTM number is A514  steel. The designation T1 is a Trade name. That threw me off a little.Thae AWS uses ASTM numbers for listing information about welding procedures.A514=ASTM 514. It is easier than using a trade name like T1.From the D1.1M 20085.7 Heat Input Control for Quenched and Tempered SteelsWhen quenched and tempered steels are welded, the heat input shall be restricted in conjunction with the maxium preheat and interpass temperatures required. Such considerations shall include the additional heat input produced in simultaneous welding of on the two sides of a common member. The proceding limitations shall be in conformance with the producer's recomendations. Oxygen gouging of quenched and tempered steels shall be prohibited.Last edited by Donald Branscom; 03-19-2011 at 03:31 PM.AWS certified welding inspectorAWS certified welder
Reply:Google ASTM 514 steel and you will get a ton of information that you are looking for.Here is a chart of the choices of filler wires for A514 on weldments less that 2.5 inches thick.Now just find a brand of wire you like and then look up the preheat and interpass temps.ONE LAST good reference.http://hazwelding.wordpress.com/2009...i-jack-up-rig/SHOWS preheat temps too!!You need to go buy some temp crayons to make your job easier.Last edited by Donald Branscom; 03-19-2011 at 05:26 PM.AWS certified welding inspectorAWS certified welder
Reply:Wow great info thanks Donald! I will have to go through and check out the links and read everything, quite busy doing renos today. Just wanted to add that the welds will be done in the flat position. Not sure how the wire handles vertical up but there will be no need for vert. Im not sure what grade the T1 is, all I know is its T1. I can read the cert. info on Monday. There will be most likely be 5 to 7 passes on the flat position to achieve 3/4" or weld. I will read your preheat info as well. Thanks a ton!
Reply:You are welcome Oxygen454. I learned a lot reading the info also.It is always good to know what the base metal is.That last post will help the most .Last edited by Donald Branscom; 03-21-2011 at 02:57 PM.AWS certified welding inspectorAWS certified welder
Reply:My foreman had a good read through with me. We found a spool from when the work on a similar project a while back. I will have to write down the specs but its somewhere between 110 or 115. I left the info in my toolbox at work haha doh!I haven't seen must of anything about post heat. We got the preheat down and the wire now... I think we will blast it with a tiger torch for a hour or so and let it slow cool. Welding starts tomorrow.
Reply:Good reading.“I'm going to do the thing that God put Galen Beasley on this Earth to do:Have Salon quality hair and weld.Nothing like a good cup of coffee and the smell of 6010 burning in the morning. 971-204-3444 cell API ASME Structural NDT and Repair
Reply:Pay attention to your preheat/interpass temps, If this is a code job, D1.1 2008 limits the preheat and interpass to 400 max and 125 min for 1 1/2".  The WPS is also limited to the 514 material only, See table 4.8 and 4.9 in 2008.
Reply:Originally Posted by Fred sPay attention to your preheat/interpass temps, If this is a code job, D1.1 2008 limits the preheat and interpass to 400 max and 125 min for 1 1/2".  The WPS is also limited to the 514 material only, See table 4.8 and 4.9 in 2008.
Reply:I have used Hobart ExcelArc 71 on T-1 with no problems, preheat, and watch your interpass temp. Most of this was heavy equipment, so your mileage may vary.Disclaimer; "I am just an a$$hole welder, don't take it personally ."
Reply:I think the ExcelArc is what we ended up using... still haven't gotten the info to post on the wire. I will defiantly give a update when its done. We are building an attachment for the end of a excavator hoe. I will be taking a lot of impacts and vibration hence the reason for the importance of proper welding procedures. So far I got the fab done and a coworker is welding it. I mostly just fab. We got the piece up to a constant 375 deg far. At the end of the day, we slow cool it with the torch. We are taking special attention to preheat, inter-pass heat, and post heat. The heat sticks are working well. We are heating from the bottom up. Torch is under the plate. The welds almost look like a gray hardwire weld. The weld also gives a good bit of splatter. Running around 27 volts and I think it was 5 on the Miller welder. Not very pretty but lost of strength. We did a bend test and the weld took a lot of the T1 steel with it so it seems to be working well. No cracks yet...Last edited by oxygen454; 03-23-2011 at 12:13 AM.
Reply:Also we are running stringers with no weave. Maybe a slight pause or a slight back weave but not much movement other than forward. I found the weaving info interesting. I think some of it applies even to average steel grade welding. Attached Images
Reply:What are you running for gas, 100% CO2 or 75/25? also what size wire?This is 100%co2 .045 wire running 25 volts.Last edited by TozziWelding; 03-23-2011 at 04:20 PM.Disclaimer; "I am just an a$$hole welder, don't take it personally ."
Reply:I think it makes it easier for everyone if the ASTM number is used for this hardened metal rather that the trade name T1.A(astm)514. More info can be foundAWS certified welding inspectorAWS certified welder
Reply:Originally Posted by oxygen454My foreman had a good read through with me. We found a spool from when the work on a similar project a while back. I will have to write down the specs but its somewhere between 110 or 115. I left the info in my toolbox at work haha doh!I haven't seen must of anything about post heat. We got the preheat down and the wire now... I think we will blast it with a tiger torch for a hour or so and let it slow cool. Welding starts tomorrow.
Reply:Originally Posted by Donald BranscomI think it makes it easier for everyone if the ASTM number is used for this hardened metal rather that the trade name T1.A(astm)514. More info can be found
Reply:Ya sorry forgot to mention that we do have heat sticks (temp crayons)(375 deg). Im not sure what the guy is doing right or wrong but he is getting some nasty splatter. Big balls. I will take some pics tomorrow and I think I will give it a go with some of the welding. The lower heat (amps) runs a bit better but the welder dude is trying to get the penetration in. I find I get better penetration with lower heat and higher wire with flux wires. I agree nortie, we commonly use the name T1 as its easier to remember than A514 I guess. I like your crescent wrench comparison. Reminds me of our steel fab teacher saying its not a Crescent, its an adjustable wrench lol. Same with ViceGrips. Stay tuned for more info and pics lol...
Reply:Originally Posted by TozziWeldingWhat are you running for gas, 100% CO2 or 75/25? also what size wire?This is 100%co2 .045 wire running 25 volts.
Reply:Originally Posted by noriteYou are correct and we should reference the ASTM# which is A514 when talking about T1 spec. steel.  However, the general public and customers always ask for T1 when they refer to hi-strength steel.  IMHO T1 and A514 are equivalent in the public mind, with T1 more in common use, technically correct or not.  Sort of a crescent wrench kind of thing."A514 grades are A, B, E, F, H, P, Q, and S. Each grade has a unique chemistry and may differ in the maximum thickness to which it is rolled, from 1-1⁄4 in. to 6 in. The material thickness affects the mechanical properties. For instance, A514 rolled to 21⁄2 in. or less must have 110-KSI to 130-KSI tensile strength, 100-KSI minimum yield strength, and 18 percent elongation. For materials 21⁄2 to 6 in. thick, the mechanical properties are 100-KSI to 130-KSI tensile strength, 90-KSI minimum yield strength, and 16 percent elongation."So you can get the chemistry but you need to know the grade.AWS certified welding inspectorAWS certified welder
Reply:If you posted in comment to my response to norite Donald, I guess I explained my thinking wrong, I'll try it this way. We were talking "T-1" which can conform to A514, or "may not".If you give me a piece of T-1 in a short time I can hand it back to you in any condition from a little stronger than mild steel to quenched and tempered 4130 at room temperature. Unless hardness is tested there is no way to know if it conforms to A514 for sure. And heat is all that is needed to change the piece I'm given.If I have a gleason press quench I can jack T-1 well over 150ksi tensile in thick sections easily, then it conforms to A513.With the low CE, failure from welding does not happen from direct hardening, with T-1, it comes from being too "ductile" and cannot retain shape at intended use. It becomes weak next to the weld.At pre-heat temps over 250F, the weld quench is not violent enough to harden to any extent, at parent material temps over 400F it will begin to "draw", at 500F it will draw quickly, at 750F for 5 minutes you've got AISI1025 next to your weld.This material may be the most friendly low alloy out there for welding, about all you can do is overheat the section next to the weld and weaken the T-1 itself or add hydrogen into the puddle.Matt
Reply:Yes...I was responding to your post.You certainly know a lot about tempering and quenching.The T1 is just a trade name for ASTM or A514 steel plate.Every metal may have a trade name but the ASTM number is universal so that all parties can be on the same page. Just like welding electrodes.They may call it "magic rod" but we can all refer to it as E7018 from its AWS classification or the ASTM number etc.,.Most welders do not temper or quench metal . I think most welders just have enough on their plate to identify the base metal and select the correct filler metal and the proper welding procedures. See what I mean?AWS certified welding inspectorAWS certified welder
Reply:Well in answering norite, I've helped hijack a thread... Sorry about that.I'm not dogging you Donald, in fact the link to Arcelor ought to be a sticky somewhere.For laughs I'm attaching some old USS sales junk showing T-1 quallys' back then, along with very recent prices (1975). Note that T-1 also conformed to A517 pressure vessel and there is a whole different bunch of folks involved when welding for that. Not shown is A513 abrasion, which it is subbed in heavy sections for cold climate use and is quallied.Still for my reasoning, T-1 is a "trademark" and if some one asks me about using an A514 and I don't see the name T-1,"Orelloy" or "Bisalloy", I'm gonna have to go do some work. If I'm gonna weld any of these, only 2 can have any PWHT done at all. So chemistry matters to me if I want to stay between the min yield/tensile numbers of A514.ASTM just tests samples of 100Ksi quenched and tempered steel for this catagory from the different mills and publishes the data and says nothing about what can and cannot be in the various samples.Oh the price list per 100lbs prices below... (wrong).Matt Attached Images
Reply:No worries on the hijacking guys. Im learning more and more which is great. So I did some welding with the wire today. Turns out the wire is Hobart FabCO 115. Goes down like stick and looks the slag from stick (7018). Weirdest wire I have ever run! It balls up as you weld and comes back towards the welding tip. Does not matter what heat or wire setting you make, it does the same thing. Just balls up faster or slower. I took some pics which I will try and upload off my phone tomorrow. Also tried to video behind my welding mask but I think it will be really hard to see. The welding data sheet states 100% CO2, gas between 35 to 40 cu/in. .045 wire  flat/horizontal 27 volts, 359 wire speed.This info is found HEREThat is the settings we are running. As stated before, not so pretty. Lots of splatter and creates a bit of a ridged weld. Really does not to go up hill at all. Causes a really high ridge.
Reply:You guys are in luck, I found my phone cable lol....These welds are by my coworker. I have seen him run normal fluxcore and the welds are real nice and straight and even. This wire is wacked...The yellow over the welds is slag which has not been chipped yet.
Reply:Originally Posted by oxygen454No worries on the hijacking guys. Im learning more and more which is great. So I did some welding with the wire today. Turns out the wire is Hobart FabCO 115. Goes down like stick and looks the slag from stick (7018). Weirdest wire I have ever run! It balls up as you weld and comes back towards the welding tip. Does not matter what heat or wire setting you make, it does the same thing. Just balls up faster or slower. I took some pics which I will try and upload off my phone tomorrow. Also tried to video behind my welding mask but I think it will be really hard to see. The welding data sheet states 100% CO2, gas between 35 to 40 cu/in. .045 wire  flat/horizontal 27 volts, 359 wire speed.This info is found HEREThat is the settings we are running. As stated before, not so pretty. Lots of splatter and creates a bit of a ridged weld. Really does not to go up hill at all. Causes a really high ridge.