I have welded a lot of truck frames and never had one crack either,but I have had welds made with 7018 crack on other stuff.7018 is the right rod for truck frames.On other stuff like high carbon steel used in newer cars and farm machinery it will crack.Also on newer trailers like steel hopper bottoms and stuff like that,it will crack.Not always,but sometimes.When it does if you V it and weld it again it probably will last.That brittle steel is harder to weld with 7018.I think 6011 might work better on that stuff if done right,but it can crack too. Even heat treated truck frame is weldable with 7018,and it can and does crack,because I drove a truck that had the frame crack where it was welded,but I didnt weld it,it came that way bought used.It was fixed by an Army welder and he used 7018 and the truck is still being used by a farmer around here.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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