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Originally Posted by Kari Lumppio
This thread is on the borderline to bother with an answer.
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Indeed, it is hard to discuss with people, who believe stone is a perfect material for aircraft.
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About the steel 30ХГСА. I was not familiar with the Soviet/Russian material codes but my own searches and the given links helped.
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Check German 14 342, this should be similar.
Yes, it is corroding, rather hard to weld and prone to breaks (sorry, I am lacking technical vocabulary), so there are some penalties. HGSA stands for chromium, manganese, silicone, with reduced phosphorus and sulphur. The number shows percentage of carbon. It is offered in a wide range of products, including seamless drawn tubes. Obviously it affects resistance, and figures given seem totally bogus for me (unless I cannot convert them to MPa).
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Originally Posted by Arsenal VG-33
And what are you thinking of? That i gave you break limits (Re) for Delta D or Steel and elastic (Rm) one for Dural.
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Any source for those figures?
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Don't worry for me, be useful just one time, sent us your values.
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http://www.spawalnictwo.com.pl/index...umer_watku=586
Do you see any difference?
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Can you show me a wooden Beauf, Invader or Ju-88, or a metallic Mosquito?
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Do you have any idea about estimating weight of aircraft? I see you do not.
So nothing, perfectly nothing.
I do not like BS, and you spread BS as hell. Like many other anonymous users, you try to lower the level of discussions to the dangerous bottom. That is all.
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Can you reapeat the question please?
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You got the answer.