Stainless Steel Yacht

[JumbleDuck]

It's a great product, just compromised in a marine environment. Perhaps shipping containers could be made of stainless steel?

I'm told that shipping containers are cheaper to buy in China than to ship back empty, so huge piles of the things are building up in European ports.

 

[lw395]

That ith the point. It ruthtetht, then it thtoppeth ruthting, thankth to a thuperfithial thurfacthe layer.

But what qualifies as 'surface' on a great lumpy statue, which has turned its back on New-castle, would be most of the way through the skin of any yacht that isn't comically heavy.

 

[dom]

I'm told that shipping containers are cheaper to buy in China than to ship back empty, so huge piles of the things are building up in European ports.

Non-corten steel, for sure; the cheapo stuff is certainly single use and many of these just pile up in ports. There is also a problem with the better corten steel containers in that Europe imports bulky goods (consumer goods ets) from China and used to send back heavy cheapo stuff in these same containers, often for 'recycling' in China. Unsurprisingly China has restricted this garbage. So more pile up here.

On the flipside, maintenance of quality containers is way cheaper in China and shipping co.s need to figure out where and when suitable containers are likely to be needed and this requires a suitable relocation dynamic.

With world trade slowing there is less requirement from a logistical point of view to reposition/service containers to China in advance of anticipated customer orders.

Apols to jamie for drifting your thread so wildly off topic! :ambivalence:

 

[AntarcticPilot]

That ith the point. It ruthtetht, then it thtoppeth ruthting, thankth to a thuperfithial thurfacthe layer.

Yeth, Mathter!

 

[DownWest]

Yeth, Mathter!

Bunch of rust flakes.....with lithps

 

[AntarcticPilot]

Bunch of rust flakes.....with lithps

Obviously not a Pratchett fan!

 

[jamie N]

Apols to jamie for drifting your thread so wildly off topic! :ambivalence:

An SS boat though, with a bit of searching, would be about 6 times more expensive in material costs alone!!
New search; is mahogany more cost effective, and durable than steel?

 

[DownWest]

Obviously not a Pratchett fan!

I did try one of his books, but found I don't do imaginary worlds ditto hobbits etc.

 

[noelex]

An SS boat though, with a bit of searching, would be about 6 times more expensive in material costs alone!!

Stainless steel, and the associated more skilled welding is lot more expensive than mld steel, but the hull cost is only a surprisingly small fraction of the finished cost of a completed yacht.

I am not sure stainless steel is an ideal boatbuilding material, but it is surprising how often obviously superior hull building materials such as epoxy or at least vinyl-ester resin is not used over the less expensive polyester resin on even on premium brands.

Unfortunately I think many of the boat buying public are more concerned with superficial details rather than the fundamental quality of the hull construction.

 

[MM5AHO]

There used to be a stainless hulled yacht parked on the edge of the Crinan Canal. It wasn't there last year, perhaps back in the water?

 

[rotrax]

Corten is widely used without any coatings - it's a weathering steel, and that's the point, really.

See: North, Angel of the

But would you want your boat rust coloured and giving your clothing and body rusty stains?

I was, of course, this being a boating forum, refering to corten steel used for boat hulls and tops.

Not statues or shipping containers.......................................

 

[Motor_Sailor]

Corten steel was someone's 'good idea' back in the 60s or 70s. (Yves-Marie Tanton, Tom Colvin ?). We built several Colvins back then with it and it had no advantages whatsoever. But it keeps being trotted out as the same tiny bits of knowledge are recycled by authors / journalists for each new article or book.

Steel boats under 60ft long aren't designed for strength, they are built to be stiff enough with a material that is workable. So 43A is easily strong enough and cheaper and requires the same blasting and coating to be rust free.

The first generation British Steel boats had stainless steel decks but they were still painted and even then had rust streaks from drilled holes, trapped swarf and some of the welds when they returned from their circumnavigations. I don't think they bothered with them on the later 72footers.

If you want metal decks that are more resistant to knocks and scrapes, then use aluminium with Detacouple joints and enjoy the advantages of shedding hundreds of pounds of weight while you're at it.

And then if you want to do the job properly, connect the aluminium decks to an aluminium hull.

 

[rotrax]

Corten steel was someone's 'good idea' back in the 60s or 70s. (Yves-Marie Tanton, Tom Colvin ?). We built several Colvins back then with it and it had no advantages whatsoever. But it keeps being trotted out as the same tiny bits of knowledge are recycled by authors / journalists for each new article or book.

Steel boats under 60ft long aren't designed for strength, they are built to be stiff enough with a material that is workable. So 43A is easily strong enough and cheaper and requires the same blasting and coating to be rust free.

The first generation British Steel boats had stainless steel decks but they were still painted and even then had rust streaks from drilled holes, trapped swarf and some of the welds when they returned from their circumnavigations. I don't think they bothered with them on the later 72footers.

If you want metal decks that are more resistant to knocks and scrapes, then use aluminium with Detacouple joints and enjoy the advantages of shedding hundreds of pounds of weight while you're at it.

And then if you want to do the job properly, connect the aluminium decks to an aluminium hull.

Watch out- Brent's coming...................................

 

[JumbleDuck]

But would you want your boat rust coloured and giving your clothing and body rusty stains?

I was, of course, this being a boating forum, refering to corten steel used for boat hulls and tops.

Fair enough, but in the context of your original

I fail to understand why anyone would imagine that Corten steel would not require protecting with coatings. AFAIK it is just a slightly more corrosion resistant steel.

I think it was reasonable to point out that the main use for Cor-Ten is as a steel which does not "require protecting with coatings", though as has been pointed out, it certainly does when near the sea.