Hi Brian,

> Why, with all the apps I have and use, would
> I need to learn this---all of a sudden?

Well, you wanted this to be a really high priority - if it is that big of a priority to you that is the way that you could make it happen right now.

Otherwise maybe after v2 is complete someone will do a different UI pack for it.

I wish I had enough time to make all features that everyone wants all be at the same priority and all happen at the same time, but I'm sorry I just have not been able to make that happen.

- Michael

Very cool model

DannyT,

On behalf of Grendel, I can answer since I too work in the field.

Generally, bare stainless to ocean will be 316, 17-4, or 2205 duplex. Differences in grades particularly with 17-4 and duplex, and usually with 316 you would find 316L because the L designates a low carbon content for improved weldability. However reduced carbon can reduce strength but increase ductility/charpy characteristics.

Thanks Jason for the help, missed that. Answered part of the question but not the other ;P)

Thanks for that answer Jason, actually forgot that I asked it so no sweat Grendel :)
The reason I asked then is that we use a lot of stainless in the line of work we do but we use Martensitic stainless steels mostly 420 series, machined then hardened to about 48 Rc, the problem lately is that we've had a few failures and we discovered it is due to intergranular corrosion.

Have any of you guys, Jason, Gredel, experienced this with the products you guys design being under the ocean and exposed to the salt.

Cheers

It's been a few years for me but a Marine Construction company I used to work for did a job where we had installed a fuel line under a pier using stainless hangers. The steel was speced out properly but there was something with 'WHERE" we got it that was the issue. Supposed to be the saltwater grade stuff and started corroding before we were done hanging it! Produced in a country where the spec stamp was penciled in I guess. Those company purchasing agents can make or break the best builders!

Nice looking details on the connector.

DannyT I have not used that material in any of our components. We stick with the 316 and Duplex for just about everything.

400 series is not suitable for subsea or ocean, but it more used for surgical steel because of the hardening capability.

400 series does not contain nickel, and generally for stainless characteristics you are looking for combinations of chromium and nickel but with 400 series it is chromium that gives the corrosion resistance. Also, 300 series are not magnetic (a trade of austenitic steel).

What is it you are designing and the constraints? The other problem with 300 series SS is the fact that they require oxygen to work, that is to say they need oxygen for the surface oxide to protect the metal, without it the steel will corrode, so 300 series is susceptible to crevice corrosion.

For stainless steel informatin, you can try this site: http://www.ssina.com/index2.html

If you want, you can contact me at jason (at) jasedesign (dot) com

Thanks guys, interesting stuff !

Thanks for the chat invite Jason, but to chat to you about work......zzzzzzzz, I'd rather chat about what the weather is like down there and maybe modelling techniques :)
The original question was just out of curiosity.

Cheers

Danny, the invite was for whatever. Or catch me on NaP for modeling stuff.

Here is a 3d print of the connector using a Z-corp 650. This is straight from the machine and has not been sanded or dipped yet so the it's a little rough and the colors become brighter after dipping. The connector is about 7 inches tall, it's fun to have access to a machine for this stuff. Stuck my watch in their for scale.

Hi Grendel, thanks for posting the photo!

It is just so cool to see your model become materialized like this.

- Michael