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why don't makers use Stainless Steel #5435851 05/22/20 12:22 PM
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WhyMe Offline OP
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for mower decks. seems that many rust out before the engines give out. my aluminum toro seems to be holding up fine after 20 years . i would think if they made them of SS that would cure the rusting issue

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435852 05/22/20 12:22 PM
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hallstevenson Offline
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$$$

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435864 05/22/20 12:44 PM
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Dave9 Offline
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Yes, more expensive and they generally assume the average owner isn't going to repair much so it'll last as long as the engine does. Granted, depends on what you spend an how old it is, some cheap decks today are thinner than they used to be.

You can get longer life out of a steel deck by spraying the underside with cooking spray (oil) before mowing if the grass has much moisture in it. That also makes cleaning it out easier, so you don't have wet grass sitting there, promoting rust. Push mowers, I'd just tilt them up (not enough to let oil leak out) and spray with a hose after mowing. If you want a cheaper alternative to cooking oil, use leftover old 2 cycle oil/gas mix but put a little more oil in it, and it'll still be thin enough to spray with a typical spray bottle. Do wait till the gas evaporates to run the engine, don't spray with a hot engine (odds of a problem are low but why rush it?).

If you've let it go for too long, you can do the same as any other rusty metal and wire brush it to a hard surface then rustoleum/etc enamel paint, but anything you do to keep water from soaking into crusty rusty metal is going to help.

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435872 05/22/20 12:53 PM
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JTK Offline
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I want to say there was a particular make/model made with a SS deck some years back. May have been a Sam's Club thing. I'd imagine it's a cost thing and they don't want to make them TOO good.

Last edited by JTK; 05/22/20 12:59 PM.

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Re: why don't makers use Stainless Steel [Re: WhyMe] #5435874 05/22/20 12:55 PM
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brages Offline
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Would stainless be better than aluminum?

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435877 05/22/20 12:58 PM
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Dave9 Offline
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^ Yes unquestionably better for rust resistance, but more expensive and heavier for same rigidity, so "better" depends on whether your deck really needs to outlast everything else or whether it's just more money tied up in a mower which after ~20 years (even drawing interest), could've been put towards a new replacement mower.

Too many factors to try to make a universal case one way or the other. It'd make more sense for a higher end mower, used in a very rainy climate.

I'd like to see stainless used more on unibody vehicle undercarriages, the floor pan, frame rail and wheel well housing strut support areas.

Last edited by Dave9; 05/22/20 01:10 PM.
Re: why don't makers use Stainless Steel [Re: hallstevenson] #5435884 05/22/20 01:10 PM
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gman2304 Offline
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Originally Posted by hallstevenson
$$$
This, plus weight. My 1998 JD JX75 has an aluminum deck and still weighs just over 100 lbs.

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435891 05/22/20 01:21 PM
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Alfred_B Offline
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I don't think a lot of mowers get discarded due to rusted decks.

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435892 05/22/20 01:23 PM
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hallstevenson Offline
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Originally Posted by WhyMe
....that would cure the rusting issue

Also, there is no rusting "issue" to the manufacturers though. Realize that the vast majority of mowers out there are sub-$200 models from Walmart and the big-box hardware stores (and in more recent years, sub-$150). There's no interest in making them that much better. Honda has a deck made out of a very durable "plastic" but they run $400+.

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435958 05/22/20 02:38 PM
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CR94 Offline
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My brother still has the Murray mower our parents bought in 1958, and it still does its job, although the engine had to be replaced when it was only 9 years old. The deck (what's left of it) is steel.


2011 Toyota Prius now at 110K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: why don't makers use Stainless Steel [Re: brages] #5435959 05/22/20 02:38 PM
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ABN_CBT_ENGR Offline
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Originally Posted by brages
Would stainless be better than aluminum?


Depends on the scenario you would be addressing

Re: why don't makers use Stainless Steel [Re: WhyMe] #5435966 05/22/20 02:51 PM
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Eddie Offline
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Cost and weight and will outlast the owner and many replacement engines. Ed


2014 CX5 Touring 2.5L :-)
Re: why don't makers use Stainless Steel [Re: WhyMe] #5436017 05/22/20 04:05 PM
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andyd Offline
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stainless is more expensive to form


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Thick oil is better grin2
Re: why don't makers use Stainless Steel [Re: WhyMe] #5436018 05/22/20 04:13 PM
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JHZR2 Offline
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I always thought the plastic deck Honda mowers were kind of neat. But theyre heavy too!

Re: why don't makers use Stainless Steel [Re: WhyMe] #5436077 05/22/20 05:34 PM
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Wolf359 Offline
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Yeah, I've never had a gas mower last more than a couple years. Either they broke out of warranty or they got stolen...

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