Chainstay or tubing offcuts for repair?

Afternoon,

I’m looking to make a patch for a cracked steel Salsa chainstay and wondering what steel is best to use? I’ve got a welder who will do the job but want to get the patch cut and shaped first to save him the faff as he’s doing me a favour.

Does anyone have any spare steel chain stays or tubing I could use? Alternatively any suggestions on what else I could bastardise?

Thanks Chris

I’d try Ceeway

No problem for some tube offcuts. I’ve hopefully replied to your message on the wonderful system…..

I have a cracked genesis fugio frame if your in south yorkshire

Is the line further to the left on the last picture also a crack?  I guess not as it kinks back, but it if has picked up the tube seam?

Thanks all. @swampi nowhere near you but thanks for the offer. @daffy no, thankfully that’s just discolouration from the chemical dipping that I need to clean up. Just the one crack and the other chainstay seems fine.

@mick_r is looking after me and hopefully getting me up and running again.