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What is S355?

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Chris In Marshfield

Well-Known Member
Staff member
Supporting Member
Joined
Jan 29, 2008
Messages
1,704
Location
Northwest WI USA
While reading through an experimental FB group yesterday, someone made mention of an alloy called S355. Then posted a series of charts about certain characteristics that made it better than 4130 in a number of areas.

ive never heard of this alloy before. Where is it often used? And if it’s so good, why don’t we see it used in aircraft construction?
 
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