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Wikipedia quotes Bob Woodward's Fear : Trump in the White House, writing:

Former Australian Prime Minister Malcolm Turnbull successfully lobbied President Trump to get an exemption at the 2017 G20 Hamburg summit, arguing "[w]e do this steel that's specialty steel. We’re the only one that produces it in the world. You've got to let us out. You’ve got a $40 billion trade surplus with us. We’re military allies with you. We’re in every battle with you.

I'm interested in the specialty steel part of the quote. Especially the part "We’re the only one that produces it in the world." Is there a specialty steel that's only produced by Australia or is this made up?

JJJ
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    This isn't a Skeptics claim. It would be better on Politics or Economics. – DJClayworth Oct 02 '19 at 14:05
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    @DJClayworth it's a notable claim by someone well-known (at least in Australia), I quoted it and express doubt that it's true. Why would Australia have some special steel that only they produce in the entire world? – JJJ Oct 02 '19 at 14:08
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    Why wouldn't they? There are many, many different types of steel and lots of processes need special versions. Canada certainly produces "specialty steel". – DJClayworth Oct 02 '19 at 14:14
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    @DJClayworth the point is that it's so unique that *"We [Australians]’re the only one that produces it in the world."* That's quite a bold claim. There are of course food items that are regionally protected like Parmigiano Reggiano, but it seems quite a stretch that this would happen with steel (note that with cheese it's mostly a naming issue). Especially if you consider that he uses this to argue for a tariff exemption, if it was so special the US needed it, why would it only be produced in Australia? – JJJ Oct 02 '19 at 14:23
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    No it's not. There are many, many different types of steel, with very minor variations. It's very likely that there is some specific type that is only produced in one place. – DJClayworth Oct 02 '19 at 14:26
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    @DJClayworth please argue that in an answer if you can support it with a reference. I'm sure this would get closed on politics.se, and I think the same would happen on economics.se. This is a classic *is this claim true?* question, so they'd point me back here. ;) – JJJ Oct 02 '19 at 14:28
  • I came across the term (or at least combination of words) “speciality steel” in this news article, which talks about military uses: https://mobile.abc.net.au/news/2016-05-17/illawarra-to-supply-steel-for-subs/7422124 – Andrew Grimm Oct 02 '19 at 21:29
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    I think this is a claim worth examining - I could easily see Turnbull try to fool Trump with a statement which may not quite be a lie, but a bit of hype or exaggeration. – Andrew Grimm Oct 02 '19 at 21:36
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    @AndrewGrimm that was my thinking too, it's *Australian specialty steel*, the best. ;p – JJJ Oct 02 '19 at 21:37
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    @DJClayworth *very minor variations* doesn't exactly sound like *specialty,* which implies that there is some specific trait (or traits) of the steel that is particularly desirable. – Mars Oct 03 '19 at 02:53
  • @JJJ Is this question about the existence of a steel that has some desirable trait that other steel doesn't have? Or about other country's inability to produce such a steel, if it exists? – Mars Oct 03 '19 at 02:56
  • @Mars the former, with respect to Australia as that's part of the claim. – JJJ Oct 03 '19 at 09:29
  • So yeah, basically "Is there such a thing as specialty steel? Why is it 'special'?" – Mars Oct 03 '19 at 09:32
  • @Mars with respect to Australia. I don't dispute that there are specialties, I hadn't thought about patents, so then it seemed weird that such a specialty steel wouldn't be produced elsewhere. – JJJ Oct 03 '19 at 09:41

3 Answers3

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The Australia-headquartered corporation BlueScope produces specialty coated steel.

For example see ZINCALUME® steel:

Next generation ZINCALUME® steel’s patented Activate® technology introduces magnesium into the aluminium-zinc alloy coating, improving galvanic protection by activating the aluminium. The result is a tougher protective coating that's more resistant to scratches and scuffs encountered during construction.

Since BlueScope is the assignee of some steel production patents, for example US 8840968, others are prohibited from infringing.

DavePhD
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    The only thing special is that no other mil can mark their product "Zincalume". – blacksmith37 Oct 03 '19 at 15:25
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    @blacksmith37 that's nothing, only the existence of unexpired **patents** is significant to my answer. Trademarks are not relavant, but patents require an actual physical, non-obvious, difference. – DavePhD Oct 03 '19 at 15:37
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    Zincalume is nothing. (there would be, what .. 100 .. 10,000 !!?? .. different types of "patented!" "specialty!" steels. An actual question here is, is that the particular product which Turnbull was referring to in the quote? My guess is it is totally unrelated. I've only ever heard of zincalume being used for roofs. @DavePhD , do you have any information at all that this has anything at all to do with what Turnbull was saying? – Fattie Oct 05 '19 at 16:25
  • Note too that the sense of the quote is *some sort of special steel*. (Like, "stainless steel" for example is of course a wonder substance of the industrial era.) there are many remarkable "special steels" with unusual properties. Coated steel is nothing, it's for fences and stuff. I really doubt this has any connection, at all, to the issue a thand. – Fattie Oct 05 '19 at 16:27
  • @Fattie he could be thinking more like this: https://www.bisalloy.com.au/aboutbisalloy/NewsandMedia/News/australian-steel-for-a-military-vehicle-industry.aspx Maybe I will add to answer. – DavePhD Oct 05 '19 at 16:52
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There are many specialty steel variants, and no doubt at least some of them are patented by Australian firms and therefore cannot be sourced from other places. Also, the exact composition of the raw materials (any source will leave its trace contaminants) can have an effect on the resulting alloy, and Australian steel mills are going to source their raw materials from other sources than those in other countries, especially they're going to have a larger proportion of raw materials from Australian sources.

So yes, it's quite likely that Australia produces some steel alloys that are unique to its steel mills.

And it's likely that at least some of those alloys are important to US industry in certain applications, else that US industry wouldn't be importing them which no doubt is more expensive than sourcing steel from say China or India, or from the US itself.

Of course you can't prove a negative. It's impossible to prove that none of those patents are being infringed somewhere, anywhere, and leading to another steel mill in say Vietnam producing an alloy that would have identical physical and chemical properties to the point it would be considered the same alloy.

Mind that an alloy is not just defined by its chemical composition but also by its physical characteristics, especially the crystal lattice of the steel (yes, metals have a crystal lattice as well), all of which help define things like tensile strength, brittleness, melting point, electrical and heat conductivity, resistance to corrosion, etc. etc. etc.

jwenting
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    In fact, an alloy is *mostly* defined by its physical characteristics. Chemical composition is mainly significant in so far as it affects the physical characteristics (corrosion resistance is the most obvious exception to this). – Martin Bonner supports Monica Oct 03 '19 at 08:06
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    From a different comment by OP, it seems that they first want to clarify if there is such a thing as specialty steel (not just minor, insignificant differences) – Mars Oct 03 '19 at 09:34
  • Nevermind, another comment states they want to know why other countries *can't/don't* produce specialty steel – Mars Oct 03 '19 at 09:52
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    @MartinBonner Alloys are not *defined* by their physical characteristics at all. They are defined by the "cooking recipe" used to make them. There is no way you could attempt to define or identify the 10,000+ different named and well-defined grades of "steel" by their physical characteristics. – alephzero Oct 03 '19 at 10:41
  • @Mars There is nothing "special" about the *ability* to produce a specialty steel. Any country could do it. But if the demand for it a particular steel grade is minimal and the market is restricted (e.g. the only customer is one engineering company that has specified it and uses it) there is no commercial value in anyone else making it, except for the preferred supplier(s) of that particular company. – alephzero Oct 03 '19 at 10:45
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    "Of course you can't prove a negative." This sentence always goes on my nerves. It's so wrong that a professor gave it as an example of a wrong statement in his first lecture of an introductory math class when I started university. – Nobody Oct 03 '19 at 19:01
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    Please [provide some references](http://meta.skeptics.stackexchange.com/q/5) to support your claims. – Oddthinking Oct 04 '19 at 00:00
  • @Nobody since this post needs some references, [here's an explanation and a list of examples of proofs of impossibility](https://en.wikipedia.org/wiki/Proof_of_impossibility) in different fields ranging well beyond mathematics. – JJJ Oct 04 '19 at 13:53
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Not really ; mixing zinc and aluminum in steel coatings has been around over 40 years. Different compositions will have different physical and chemical/cathodic properties , anyone can claim theirs is the "best". Look in Woldmans' Alloy Index; of the many thousands of listed alloys,possibly half can be called some type of carbon steel - It doesn't take much to copyright an alloy name.

blacksmith37
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    So, you're saying it's mostly a technicality? While many entities can have their unique steel, it's a bit of a moot point that it's not that much of a specialty? – JJJ Oct 02 '19 at 19:19
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    Please [provide some references](http://meta.skeptics.stackexchange.com/q/5) to support your claims. Is this any more than a comment on another answer? – Oddthinking Oct 02 '19 at 20:46
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    They don't claim it's "the best", as such a thing does not exist. They claim they have a specific product nobody else in the world can provide. You nowhere claim that that's not the case. Sure there are other steel alloys, in fact there are potentially millions, but you'd have to prove that another mill makes exactly the same alloy as this statement is about and you don't. – jwenting Oct 03 '19 at 04:53
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    @jwenting Is the point not that they don't provide something no one else can, but that there is nothing *special* about it? – Mars Oct 03 '19 at 06:10
  • @Mars that'd depend on your exact reading of both the statement quoted and the question resulting from that quote. I'd say that if it weren't anything special it'd be something others can supply suitable equivalents to so the two are pretty much synonymous in this context. – jwenting Oct 03 '19 at 06:27
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    @jwenting That's what I asked OP for clarification. OP's comment on this answer also seems to indicate that OP is asking if there is actually anything special about it – Mars Oct 03 '19 at 06:29
  • The description sounds like that steel is specially optimized to work great with that kind of coating. – rackandboneman Oct 03 '19 at 18:07