I guess my main question is does anone stock thick plate or forged blocks of 13/4 or 17/4 martensitic stainless? This may be prefuable to casing 13/4 to CA6NM from a point of view of reducing the chance of defects.
So far I have only been able find companies that will do a production run for us...
I am trying to source martensitic stainless steel plate or forged blocks for machining/fabricating hydro-turbine runners.
I am interested in 13-4 Cr/Ni up to 150 mm thick blocks. We need about 1000 kg in this form. This grade is used for pelton runners/buckets.
Also keen to source 17-4 or...
monaco8774, we are looking for some large buttterfly valves (32" / 800 mm. class 300 or PN25) for isolation valves for a hydrostation (i.e cold fresh water). I was wondering if I could get away with using non-offset rubber lined/rubber seated valves? Can you recomend suppliers for suitable valves?
I am trying to source a butterfly isolation valve for a hydrostation. Valve size is 800 mm (32") and the head of cold water is 150 m (492 ft). Would it be possible to get away with a cheaper non-offset valve or would I need double offset?
