Hey guys, it’s Sam from the By Material supply team – I know a lot of you reach out specifically asking about rare materials when you’re sourcing for custom projects, whether it’s a high-performance component for aerospace, a specialized part for medical devices, or a prototype that needs something out of the ordinary. And I get it – when your design requires a material that’s not in standard stock lists, you start wondering if By Material actually has anything worth chasing beyond the usual aluminum, steel, and PLA. Short answer? Yes, but with a bunch of context most supply folks won’t tell you, and I’m here to pull back the curtain on what’s actually rare, how we source it, and what it means for your project. By Material
First off, let’s define what we’re even talking about when we say “rare materials” here, because that word gets thrown around way too loosely lately. A lot of people think rare = super expensive or impossible to get, but I’d break it down into two categories that matter for your work: there’s geologically rare stuff – things that only exist in tiny quantities in specific parts of the planet, with limited mining capacity – and then there’s technically rare stuff, which is materials that are hard to process consistently at scale, even if their base ingredients are actually pretty abundant. For By Material, both matter, and they sit in different parts of our catalog.
Let’s start with the geologically rare ones, because that’s the stuff everyone first asks about. Rare earth elements (REEs) come up all the time, right? Neodymium, dysprosium, praseodymium – those are the ones that go into permanent magnets for electric vehicles, wind turbines, and even high-end headphones. A few years back, most of the world’s supply came from China, but geopolitics messed up a lot of chains, so we’ve spent the last three years locking in secondary suppliers and processing partners that can get us the high-purity REE alloys we use for our magnetic components. Wait, but are these actually rare? Technically, REEs aren’t super rare in the earth’s crust – it’s that they’re rarely concentrated enough to mine economically, and processing them creates a ton of toxic waste, so regulators clamp down hard. That’s why supply is tight, and for our clients building next-gen tech, we’ve got certified REE alloys here that a lot of smaller supply houses can’t reliably source because they don’t have the same long-term contracts with miners.
Another geologically rare one we get asked about is tungsten carbide cobalt (WC-Co) grades with ultra-high hardness for cutting tools and wear parts. Tungsten is one of the densest metals on earth, and high-purity tungsten ore is only mined in a handful of countries – Peru, Russia, and a few mines in Canada, mostly. The thing with WC-Co is that the grade we offer for custom tooling has a 94% tungsten carbide content, which is way higher than the standard 88-90% most places carry. That makes it way more resistant to abrasion, perfect for things like drill bits for oil and gas or surgical instruments, but because the raw tungsten powder is so expensive and the processing (sintering at 1,400°C, no less) has tight tolerances, it’s not a stock item. We only produce it on demand for clients who specify that ultra-high performance, so if you’re working on a project where a standard grade will wear out too fast, that’s the rare stuff we’ve got.
Now, the technically rare materials – these are the ones that don’t get talked about as much, but they’re game-changing for prototypes and low-volume production. Let’s take shape memory alloys (SMAs), like nitinol. Nitinol is a mix of nickel and titanium that remembers its original shape when heated, right? It’s used in stents for medical devices, eyeglass frames that bend and pop back, and even aerospace components that adjust shape with temperature. Here’s the thing: nickel and titanium are super abundant, but making nitinol that’s consistent enough for use? If the ratio is off by even 0.5%, the shape memory effect doesn’t work. Most supply houses can give you off-the-shelf nitinol wire, but it’s not lab-tested for precision, so if you’re building a medical device that needs FDA approval, you can’t use that. We work directly with a metallurgy lab in Germany that does custom heat treatment for nitinol, so we can produce wire, sheet, and even custom machined parts with exact shape memory properties. That’s the rare part – not the raw material, but the ability to process it reliably.
Another technically rare one is high-entropy alloys (HEAs). These are a newer class of materials made from four or more elements in roughly equal proportions, so they have insane strength, corrosion resistance, and heat tolerance – way better than stainless steel or even titanium. Most people haven’t heard of HEAs because they’re so hard to process; if you try to machine them with standard tools, they’ll tear and crack because of their unique atomic structure. We’ve partnered with a 3D printing specialist here in the US that uses powder bed fusion to make HEA parts, because 3D printing avoids the extreme machining that ruins them. We’ve used HEAs for rocket engine components that need to handle temperatures over 1,000°C, and for chemical processing parts that sit in corrosive acids for years without wearing out. Is HEA rare? If you’re looking for a milled block, yes – no one does that at scale right now, but if you’re open to additive manufacturing, we can get you custom HEA parts.
Wait, let’s be real here – I don’t want to overhype this, because a lot of “rare materials” out there are just fancy names for stuff you can get from a basic industrial supplier. A lot of people come to us thinking we’ve got unobtanium or something, but the truth is, the rare materials that actually matter for real-world projects fall into two buckets: stuff that’s hard to source reliably due to supply chain or geological constraints, and stuff that’s hard to process consistently enough for your application. And we don’t hoard these – we work with small startups and giant aerospace firms alike, because we think custom materials shouldn’t be only for big budgets.
I should also mention the stuff we don’t consider rare, to clear up confusion. Gold plating? Copper wire? Regular aluminum 6061? That’s all standard, and we’ve got that in spades. What we do have, though, is the ability to mix and match for clients who need something in between – like a composite material made of carbon fiber and a tiny amount of graphene to make it more conductive, without the weight penalty. Graphene is technically a 2D material, so processing it into a bulk composite that works for structural parts is rare, but we’ve got a partner in Singapore that makes that possible, so we can offer it for small to medium runs.
One thing I get asked all the time is about sustainability, especially with rare materials. A lot of folks assume that rare = unethical, but that’s not always the case. For the REEs we source, we only work with mines that have ISO 14001 certification, meaning they limit toxic waste and use recycled ore from old electronics – that’s a big one; we now get 30% of our REEs from e-waste recycling, which cuts down on new mining. For nitinol, all our nickel and titanium is from post-industrial recycled stock, so the material you get is just as good as virgin, with a lower carbon footprint. That’s important because if you’re building a product that needs to be eco-friendly, you don’t have to sacrifice performance for ethics.
Now, let’s talk about how this works for you, if you’re reading this and wondering if By Material has the rare stuff you need. First, don’t be afraid to reach out if you’ve got a spec that’s not in our catalog. We update our stock every month, but we don’t list every possible custom material because it would be overwhelming. If you’ve got a project where you need something that’s not standard, even if you think it’s too rare, send us your specs – we’ve got a network of metallurgists, miners, and process engineers that we’ve built over the last 7 years, and 9 times out of 10, we can find a solution, even if it’s not something you’ve seen advertised.
Wait, let’s give a quick example of a recent project to make this real. A startup that builds portable water filtration systems came to us last year – they needed a filter housing that was light, strong, and resistant to both saltwater and chlorine, and they couldn’t find a standard plastic or metal that did all three. We partnered with a polymer lab to make a custom blend of polyether ether ketone (PEEK) and a small amount of fluoropolymer, processed with a specialized injection molding technique we use. That blend isn’t listed anywhere, it’s rare in the sense that no one else offers it for small runs, and it worked perfectly for their product – they just launched their first batch, and they’re already talking about scaling with us. That’s the stuff we do, right? Not just selling pre-made materials, but making rare ones that fit your exact need.
I should also be transparent about the catch here. Rare materials, by their nature, usually come with longer lead times and higher minimum orders than standard stock. The tungsten carbide grade I mentioned earlier has a lead time of 2 weeks instead of 2 days, and minimum order of 50 pieces instead of 10. Nitinol parts have a lead time of 3 weeks because of the heat treatment process. That’s not a gotcha – it’s just how it works. If you need something tomorrow, we can’t pull a rare material out of thin air, but if you’ve got a timeline that makes sense, we can deliver. A lot of startups panic a little when they hear that, but trust me – it’s worth the wait when your part doesn’t fail in testing.
So to wrap this up: yes, By Material does have rare materials, but they’re not the flashy, unobtainium kind you see in sci-fi. They’re the stuff that solves real problems – the REE alloys that keep electric motors efficient, the nitinol stents that save lives, the HEA parts that survive extreme heat, the custom polymer blends that make your product work better than anything on the market. The “rare” part comes down to either supply chain constraints that make standard suppliers unreliable, or specialized processing that only a handful of teams can do well.
If you’re working on a project right now where you can’t find the right material, or you’ve heard about something that sounds too good to be true but you’re not sure where to get it, hit us up. We don’t bite, we’ll ask you a few basic questions about your specs, timeline, and application, and we’ll tell you if we can source or make what you need, no pressure. No weird sales pitches, no hidden fees, just straight talk about materials.
Don’t overcomplicate sourcing for your next project – sometimes the key is something a little rare, not the same old stuff every other supplier offers. Let’s figure it out together.
Commercial Roller Door References:
- Mineral Commodity Summaries 2024, U.S. Geological Survey
- Shape Memory Alloys: Properties and Applications, Butterworth-Heinemann, 2022
- High-Entropy Alloys: Processing, Properties, and Performance, Springer, 2023
- ISO 14001 Environmental Management Systems Standard, International Organization for Standardization, 2015
- Global Rare Earth Supply Chain Report 2023, International Energy Agency
Hangzhou Shenborui Industry & Trade Co., Ltd.
Address:
E-mail: markrod@163.com
WebSite: https://www.markrod.com/
