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Old 27 September 2004, 04:19   #11
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Country: UK - Wales
Town: Southampton
Boat name: DynaMoHumm/ SRV/deja
Make: Avon8.4, 5.4 & 4.777
Length: 8m +
Engine: Cat3126 Yam 90 &70
MMSI: 42
Join Date: Dec 2003
Posts: 6,556
Even i knew that and I haven't even got a Hardboat.
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Old 27 September 2004, 04:28   #12
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Country: UK - England
Town: Over here
Boat name: S.S. Nobstick
Make: Three Wise Monkeys
Length: 3m +
Engine: 44lbs of thrust....
Join Date: Nov 2003
Posts: 2,115
Quote:
Originally Posted by Jonny Fuller
So 304 is A2, and 316 is A4?
Yup... .... Except in US where A2 and A4 are actually air hardened tool steels...and don't get me started on wire gauges...
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Old 27 September 2004, 04:47   #13
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Country: UK - England
Town: Over here
Boat name: S.S. Nobstick
Make: Three Wise Monkeys
Length: 3m +
Engine: 44lbs of thrust....
Join Date: Nov 2003
Posts: 2,115
Quote:
Originally Posted by Cookee
Sounds great Jono - if you can tell me where to buy all this specialised stuff I would love to know - currently looking for some 1/2" UNF bolts for mounting engines in the strongest stainless stuff known to man!

Thanks -
Yeah, it does doesn't it? trouble is no one in this country carries stocks of "exotics" in the sizes that "boaties" find useful and everything's a trade-off. The most corrosion resistant doesn't have the highest tensile properties for instance.Best you can aim for if you require high strength and it's above the water line, if you need S/steel, is B8 class 2 (which is a 304 material heat treated and strain hardened to give good tensiles). Any good fastening supplier should be able to supply these, but there may be minimum order quantities.
I will look out some US contacts for you to try you may have luck there, they do tend to be more helpful with "nuisance" enquiries.
When we buy stuff like this it's generally special order, for larger sizes 60mm and above and it's a nightmare...
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Old 27 September 2004, 07:33   #14
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Country: UK - England
Town: Beverley
Boat name: TBA
Make: Unknown
Length: 6m +
Engine: Tohatsu 8Hp
Join Date: Apr 2004
Posts: 257
Thankyou O knowledgeable ones! If you think getting US stuff in Europe is bad, try and get hold of 15mm compression fittings in the US!
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