191–200 of 251 posts
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Perhaps we should add, "Reconsider" as in, "Reconsider purchasing the item, when it's not needed, or a better alternative exists".
Is there a difference between "reconsider" and "reduce"?
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> that you want to last in sea water? How long? Under what kind of load?
Well, the payload has a 20 year life time. Solar panels, navigational lights, etc. Hopefully very little physical contact with other man made objects. A decade of sea life before some sort of land refurbishment would be a nice value for the excel.
Btw, since this is a common misconception: the cost for repairing / replacing corroded metal actually increases GDP. It's not clear from the article what they mean by 'costs' (they could also mean how many other goods weren't produced because of corrosion damage, which would be lost GDP), but that's something to be aware of.
... came here to say this. I have spent so much more money on stainless and galvanized parts and taken many expensive precautions, followed expensive building practices, etc. due to rust. This was increased economic activity. Not saying it was morally positive but it certainly increased GDP ...
Why aren't bridges and ships made out of stainless steel? Is it too expensive, or not as strong as regular steel?
Stainless steel is not 'rust proof' it is mostly rust retardant, it has a chromium coating that reduces oxidization but does not stop it completely. The more chromium, the better the rust resistant properties. https://www.pennstainless.com/resources/product-information/... Is pretty good stuff and https://www.cralloys.com/alloys/17-chrome/ is possibly better still. If you want (much) better rust resistance than that…
Just to be clear ... you can indeed coat things with stainless steel.
However, most stainless steel objects (like screws or bolts or tools, etc.) are stainless throughout - you cannot abrade or scratch into a non-stainless inner core.
This is unlike, for instance, galvanized hardware which is merely steel with a coating over the top. Galvanized items can, indeed, be mechanically altered to reveal non-galvanized material underneath.
As for my grandparents question:
You can, indeed, buy stainless steel beams, rebar[1], etc. They have all the fantastic properties you imagine and are, again, not merely coated like (for instance) galvanized rebar. They are also extremely expensive.
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VW has been caught lying about the capabilities of their cars, then the executives blamed the engineers to cover their asses. If one needs a reason to forget about VW.
VW was the _first_ company selling diesel powered passenger vehicles to be caught lying. Opel/GM, Chrysler, Nissan, Jeep, Renault, Peugeot, Mercedes-Benz, BMW, Audi, and Porsche were all later caught somehow skirting diesel emissions testing. Basically all large truck manufacturers did it too. Clean diesel is a myth, it never was a thing and the only reason anyone thought it was was because the entire auto industry w…
That is what I was highlighting. Not, "mistakes were made" but, "And they were, points fingers at scapegoat"
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Interesting, any particular brands or is that across the board? Here we liberally salt our roads as well in winter and in the past cars would not last a decade before falling apart. Now you really have to look to figure out which cars are new, 10 or 20 years old. Rust is - as far as I can see - a solved problem. Not many US cars on the road here though.
Chevrolet and GMC full size pickup trucks and SUVs are probably the worst offenders. Which seems counter intuitive since many of GM's engineering and design happens in northern climates with salted roads. It's not all of GM's vehicles which are subject to this, many do have good corrosion resistance, they just choose to only use such techniques on a subset of the vehicles they produce. For example: https://static.nht…
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Well perhaps "retain" should be added. Making something last longer isn't quite "reduce" or "reuse".
And repair. Repairing always uses fewer resources than making new. While I personally and professionally select use repairable items in lieu of non-repairable ones, I believe that this is not entirely a personal issue. Another r-word to add should be regulation. Without some degree of enforcement, the present set of incentives will continue to worsen the situation.
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>have been galvanizing all their bodies domestic and import. This is because there's basically no market for used cars older than 5 years in Japan https://www.google.com/amp/s/www.picknbuy24.com/amp/column_1...
There's a huge export market though: https://en.m.wikipedia.org/wiki/Japanese_used_vehicle_export... I read that something like 60% of cars registered in NZ are Japanese imports. IMHO Japanese used car exports have a lot of the characteristics of "dumping" (in trade terms) but because there is no local vehicle manufacturing in most of the places they end up, nobody complains.
We mostly don't have snow and I don't think any region salts their roads, so rust isn't much of an issue with something that new.
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Are modern Volvos still better than average for corrosion resistance?
Somewhere in the late 90's early 2000's car manufacturers switched paint processes, typically to a water based paint. That's the point in time where you could see the most clearly which manufacturers had their house in order in terms of weld cleaning, seam coating, basic material procurement and surface protection. Some of them failed horribly, which led to some brands (for instance: Mercedes) having an undisclosed h…
Despite cars being on the road for longer than ever, I feel like I’ve seen far fewer “rust buckets” than in my youth