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  • Users: alrose
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  1. alrose

    Martensitic Stainless Steel

    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...
  2. alrose

    butterfly valve offset

    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?

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