Thanks again Cassgazz, thats a good option. I had been thinking that a 6G pipe would be the way to go. The additional tests will be good too as I have some pressure pipe comming up.
Cheers SiS
The awnser should be yes.
As I read AS/NZS 1554.1, if your 25mm plate is acting as a backing bar I’d say t1 + t2 + t3 = 155mm. If its being added after welding your two 65mm plates together I’d say t1 + t2 = 90mm.
What Control said 😉