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Ski Edges

 Poster: A snowHead
Poster: A snowHead
I'm new to this skiing lark. I've read on this forum that ski edges can rust if not maintained and stored correctly. Simple question; why don't they make the edges out of stainless steel? The marine industry makes almost all metal fitments out of stainless. Just curious.
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There's an old thread on TG that suggests it could be because they'd be more expensive and more difficult to sharpen.
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Well, the person's real but it's just a made up name, see?
Awdbugga wrote:
I'm new to this skiing lark. I've read on this forum that ski edges can rust if not maintained and stored correctly. Simple question; why don't they make the edges out of stainless steel? The marine industry makes almost all metal fitments out of stainless. Just curious.


The metal edges have to flex with the ski so they're made from carbon steel of approx 48 rockwell hardness to allow for the movement. Not much more harder than that, which would include the softest stainless steel grades, and the edges will be become work hardened and crack.

Carbon steel has the benefit of being lower cost, durable enough but can still be maintained with rudimentary hand tools.
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You can never get an edge of stainless as sharp as a carbon steel material.

Some other examples follow the same, professional chefs' knives are carbon steel usually, regularly sharpened and oiled to prevent corrosion when not in use. The sharpening steel is mainly a giant deburr tool.

Engineering cutters, again favour carbon steel over stainless for cutting steel materials amongst others.
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Makes sense. Not being a metallurgist, I was unaware of the properties of the various types of steel. Thanks for explaining it.
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In the late 90's Atomic mad a few pairs of skis with Chrome edges, bloody awful things to work on as a Tech. You could only sharpen them with a diamond stone and they wrecked normal grinding belts and stone grinders. They were supposed to hold sharpness better, but no one bothered to re shapen the dammed things
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 Then you can post your own questions or snow reports...
Then you can post your own questions or snow reports...
Lot of disinformation in this thread, already ......

As an idealist you'd wan't the hardest edges possible, makes sense ...... but they need to bend.

As an engineer you'd realise that 'hard' and 'flexible' are two different things.

'Stainless Steel' comes in many different forms ...... Sorry.
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After all it is free Go on u know u want to!
Can you please enlighten is further BCJohnny?
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@Duplo, for one thing they have different grades that have different resistance to rust. I've seen plenty of 'stainless steel' items (such as handrails or staircases) rust when they're in a seaside resort.
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Can you have a flexible but hard steel, or are those two properties a trade off against each other? Interesting the point Idris made about she edges tat were so hard they couldn't be sharpened easily, so people couldn't be bothered. I guess you have to have relatively easy maintenance or people wont do it and you'll end up with a blunter edge in the end!
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@Duplo, you can get both properties within the same component. For example a band saw blade may be made of a heat treatable steel that makes the teeth hard and more brittle but leaving the support part of the blade in a more flexible state. They do this by selectively treating the lead edge which alters the material's structure just locally along that edge. This may be closest to and relevant in form and scale to a ski's edge.

@BCjohnny, I thought the original responses to the OP covered the subject in a reasonable way which they've acknowledged and without going toward an overtly technical depth. Are you just going to lob a grenade in and leg it? Or, intend to elaborate on our shortcomings?

'Engineers' come in many different forms, amongst them plastics, chemical, mechanical..........sorry. Toofy Grin
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And love to help out and answer questions and of course, read each other's snow reports.
ski3 wrote:
BCjohnny, I thought the original responses to the OP covered the subject in a reasonable way which they've acknowledged and without going toward an overtly technical depth. Are you just going to lob a grenade in and leg it? Or, intend to elaborate on our shortcomings?


Thank you for taking the time to adjudicate over this thread ...... by the scale of reference you're imposing, any worthwhile reply would be 'overly technical'.

Quote:
'Engineers' come in many different forms, amongst them plastics, chemical, mechanical..........sorry. Toofy Grin


Of course, but the better ones I deal with don't necessarily try to constrain themselves to individual disciplines, but you knew that ........ wink
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I prefer engineers to be more civil.
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 You know it makes sense.
You know it makes sense.
Anyone else remember the Veilhaber MTBs with segmented edges?
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Otherwise you'll just go on seeing the one name:
@Mosha Marc, Laughing
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 Poster: A snowHead
Poster: A snowHead
@Mosha Marc, haha!!
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Dode yes, they were the cutting edge for their time Laughing

My first pair of skis had I think screw on edges. Short separate sections screwed into the wood Shocked
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 Well, the person's real but it's just a made up name, see?
Well, the person's real but it's just a made up name, see?
BCjohnny wrote:
Lot of disinformation in this thread, already ......
<shrug> The only "disinformation" is coming from the person complaining about disinformation. Very presidential, we're all impressed.

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On the OP, they rust surprisingly quickly if you for example leave them in a wet ski bag on a transatlantic flight. One way to avoid that is to run a block of wax along the edge. For summer storage, if there's any chance of humidity, you also want them to be waxed.

Edges seem simple and cheap to buy, but there's more variation than I'd have expected. These people claim to sell 170 different edge profiles.
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@Mosha Marc Laughing
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@philwig, do people ever use those small bags of Silica gel in their ski bags? They are cheap as chips to buy. I dry mine off with kitchen towel after every use, and let the stand in a warm room, but have still got what looks like a tiny spot of rust on one edge already; and I only bought them in August. Crying or Very sad
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@Awdbugga, ski edges rust. When you service them or ski on them, the rust comes off. As long as you're not storing them in a swamp, the rust build up will be manageable.
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@Scarlet, Thanks.
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