Welding A-514 material

Here is a good article regarding welding A514

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

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Check this link on the same post on Gebneral discussion.

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IPR Violation.

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First, define the operating conditions, such as temperature-range, loading situation, and corrosive environment (or lack there-of). Next, give us some quantitative information on the configuration of the candidate weld-joint, the position(s) in which you plan to make the weld, and the end-use planned for the part. When you've thought these things through, see the short article in another post to your question, read it through. Then, seek the advice of a knowlegable welding engineer.

Another source of information is AWS D1.1 the structural welding code for steels.

I took very satisfactory results welding (SMAW) this material with E-7018-1 (Please remenber that Low Hydrogene filler metal needs special conditions for handling and storage) ADOLFO

Stick electrode : E11018. Preheat weld area of steel to 175 -225F, interpass temperature not to exceed 400F

Solid wire (MIG) 100 or 120S. Preheat the same as above.

Remember that this material derives its strength from quench and temper, do not overheat.

Stringer beads work best on this material. Fill your craters. ROD MUST BE DRY. Material is VERY suseptable to hydrogen cracking. Material will self stress relieve to a point, but you must wait a minimum of 72 hours before inspection. Generally works best in the un-heat treated state. Cracks transverse across weld beads are typical defects.

If you have to do this again, try to get A-517. Essentially the same material, only better quality. (ASME specs 517, but not 514) Remember that you are dealing with a material that has an ultimate tensile range of 105ksi to 115ksi, and a yield in the 90ksi range. I believe that this was originally developed as an amour plate material.

Pipeliner GM90 by Lincoln Electric is a good FCAW wire to use. Also to help prevent the hydrogen cracking wrap the weldment in insulation and allow it to slow cool after you are done welding. The weldments also have very good CVN's, keep from 225 f to 400 f while welding

How is DS 81-K2 wire for welding a514 material 8" t x 24" solid diameter producing a 1.75" fillet weld?

Will preheat and post heat for 2 hrs after fillet weld completed.