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Gr. 8.8 BOLTS AND NUTS

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123revolution

Petroleum
Jul 18, 2013
15
Hi Guys,
I am working/preparing a piping MTO for a ship's boiler steam lines to be replaced and I'm being advised to use gr8.8 bolts for the (DIN) flanges rated 300# or PN25. Is there any advantage in using this other than using the normal grade b7?
 
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