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Discussion Forums - The Hendrix Group
HomeHomeDiscussionsDiscussionsMaterial Select...Material Select...270 HT saltwater use270 HT saltwater use
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3/20/2004 9:00 AM
 
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I am planning a wood/epoxy sailboat in the 45 to 50 foot size range. I have a source for 270 HT plate. Would this be a suitable material from which to construct deck fittings for a blue water sailing craft? Intragranular corrosion/material failure would be a bad thing! Many material sources recommend 316L for this salt water application. Thank you for hosting this forum.
 
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3/24/2004 9:00 AM
 
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Tim: We're not familar with "270 HT". Can you provide more detail regarding the alloy, i.e., ASTM specification, AISI spec, chemical analysis, etc? David Hendrix The Hendrix Group Inc.
 
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3/26/2004 9:00 AM
 
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Oops, my error. The alloy marking on the material is 240 HT, not 270 HT. Thank you! This is all the information I have, except that the material was reportedly left over from an industrial boiler project, is in 3ft by 8ft sheets and is about 3/16 inch in thickness.
 
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3/26/2004 9:00 AM
 
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Tim: The 240 HT probably refers to ASTM A-240, Heat-Resisting Chromium and Chromium-Nickel SS Plate, Sheet and Strip. ASTM A-240 includes many types of stainless steels; therefore, whether your plate would be approproate for you boat would depend on the specific A-240 alloy. Hope this helps! David Hendrix The Hendrix Group Inc.
 
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