Can you braze a hydraulic line?

[m1garand762]

I have a split steel hydraulic line on my Kubota M59. I ordered and have the replacement line. After two days disassembling my tractor, I have realized it is impossible to remove and replace the line. It was apperantly installed early in the construction of the tractor and never intended to be replaced. Which would have been fine if the materials had been higher quality. It was not damaged, it failed. So now I'm thinking I will have to cut the old one out and have a flexible line built on to the Kubota ends. That got me thinking they might have to braze hose fittings onto my cut tubes. So can I braze over the material defect in my tube?? I braze copper lines regularly and brass and steel fittings occasionally. I usually use a 45-55* silver braze with flux on steel or dissimilar metals. Sometimes I will cap with a 15* silver just to beef it up. Any reason I can't do this on a steel hydraulic line??

Blow the line out good if you can get to both ends. Flush some detergent through blow it out with air to get the residue out. Use your 55% with flux and flow nitrogen while torching to keep the inside of the line clean

 

[jwmorris]

I have TIG welded special ends to new hose/crimp ends lots of times over the years. I would imagine silicon bronze filler would work just fine but I always used ER70s.