I despatched a mate to get me a corrosion resistant BBQ for marine use. He came back with a Kiwi Sizzler. 201 grade stainless.
There seems to be an option for these BBQs in 430 stainless - but I do not know if 430 is much more corrosion resistant and I can't quite work it out from the online spec sheets.
Ideally I would want 316, bit at triple the price that ain't going to happen.
Is 201 significantly less corrosion resistant than 430!
Ta.
morrisman1,
Dec 20, 8:55am
you wouldn't need 316, 304 would be sufficient. 316 adds resistance in acidic conditions from memory so is suitable for chemical containers. Sorry cannot help with the rest of your query
taipan4,
Dec 20, 8:55am
um. tried google
fordkiwi27,
Dec 20, 8:58am
what time we going fishing UJ! im heading out oriental parade at 5am in the morning. no boat. kingis are around i hear.
unclejake,
Dec 20, 9:00am
Umm, what do you think!
unclejake,
Dec 20, 9:02am
Yeah, the kingfish were around last weekend Tim. I shot one last Saturday. Dunno about now though as the water temp will have dropped a fair bit with the week of southerlies.
fordkiwi27,
Dec 20, 9:05am
sweet. yep that southerley is pretty full on. be nice saround OP hopefully. how big was the kingi and where did you get it mate!
unclejake,
Dec 20, 9:07am
It was only a tiddler. 10kg or so. We were at the north end of Kapiti Island. A couple of 15-17kg models swan past when my gun was unloaded. it is always the way :-)
fordkiwi27,
Dec 20, 9:10am
true! 10kg is all good. missus dad is in the kapiti club and has a nice maclay, we go there a bit. i just bought a new rod tonight off matt watson. haha
unclejake,
Dec 20, 9:12am
If you get a heap bring it around and I will smoke it for you auw. We shot a few tarakihi too. Lovely things.
Anyway, let's hope I can find out about this BBQ that arrived tonight as I am not going to unpack it if the 430 option is better
blacksand1,
Dec 20, 9:20am
Steel & Tube have details regarding the different grades of stainless steel available to download, from their website
mm12345,
Dec 20, 9:22am
I've got a stainless "Kuuma" bbq for my boat.One of those round kettle types that you attach to a pushpit rail in the cockpit. Anyway, the BBQ housing is ok, but it's got a drip tray under the grill, and after one season use, that's corroded badly, despite being stainless.BBQ is still quite usable though. Probably the result of salt on steaks etc, juice dripping down, high heat, and soon it looks like stainless isn't quite what many people expect it to be.
unclejake,
Dec 20, 9:27am
Thanks Blacksand, S&T don't list the 201 so it is hard to get a comparison.
MM, I bought a Meteor marine SS BBQ and it was scaled with rust within months. The truth is that I need proper 316 SS and I may have to fork out.
^ Yip. Now tell me which one is more corrosion resistant! LOL. Gah, I shouldn't have wagged chemistry classes
snoopy221,
Dec 20, 9:32am
316////LOL [But ya knew dat neway U J.] Type 430??
snoopy221,
Dec 20, 9:33am
430 is better than 201-however in a marine application either 304 or 316.
unclejake,
Dec 20, 9:37am
That is what I had expected. I will go back to Burnsco tomorrow to see if I can upgrade to the 430 option, and if not I will get an Australian 316SS one called a Sovereign.
Thanks man
tonyrockyhorror,
Dec 20, 10:14am
Most of it comes down to construction. Welded vs cold formed. Any HAZ will be subject to intergranular corrosion.
201 is a manganese-substituted austenitic stainless and thus cheap. It's the nickel that's expensive so the nickel is substituted with manganese.
In seawater, 316 is good but may get localised corrosion. 430 will pit fairly quickly. 201 is poor.
The best material for use in seawater is a duplex like 2205. But you won't find any BBQ made from that. If you thought 316 was expensive, 2205 will give you a heart attack.
But no stainless will last forever in a chloride atmosphere because the passivating film that makes it 'stainless' is not impervious to the chloride ions.
In short, it really doesn't matter for a BBQ.
tonyrockyhorror,
Dec 20, 10:16am
BTW, unless it's moored, don't even worry about it.
unclejake,
Dec 20, 10:28am
Thanks for the meaningful advice. The truth is that the BBQis for my home, but every single tradesman who has done anything ferrous here has not listened to me and has fitted what he has believed to be adequate, causing re-work that is sometimes a major.
Galv nails and junk SS window hinges are my nemesis and I am onto my third roof
tonyrockyhorror,
Dec 20, 10:39am
Galvanised nails. I presume you have cedar weatherboards if they're a problem.
tonyrockyhorror,
Dec 20, 10:41am
And SS window hinges! On aluminium windows! Unless they're electrically isolated the aluminium will corrode away. Galvanic series.
unclejake,
Dec 20, 10:44am
I believe they are totara weatherboards. The house was built in 1927 but the main problem areas are recent alterations/additions. We get a huge amount of salt drift.
No one understands so I have to do most things myself.It is very frustrating to instruct a timber window fixer (for example) to use only SS nails and then catch him using passivated zinc. The re-work is sometimes impossibe once the nail heads are punched down
unclejake,
Dec 20, 10:45am
The SS hinges are on recent cedar windows but the pins seems to rust badly. The brass hinges still here from 80 years ago are still fine.
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