Originally Posted by Salamandrine

To elaborate: it can be repaired by replacing the cracked tube with a new one. Typically this repair costs $200 and up, not including new paint, which is another $400+ dollars. So unless the frame is quite valuable or has sentimental value, it is rarely worth it.

Also, if this is a TIG welded frame, then it cannot be repaired at all. (I can not tell from the pictures)