Key takeaways
- On September 30, 2026, 6K Additive announced a 30-month long-term supply agreement to provide Nickel 718 alloy powder to ADDMAN Engineering, with a stated minimum value of US$8.1 million and a maximum of US$10.8 million.
- Per 6K Additive's PR Newswire release, the powder supports ADDMAN's aerospace, defense, and energy production, and the deal includes dedicated stocking support.
- The agreement also sets a structured revert buy-back program: 6K Additive purchases revert powder from ADDMAN and processes it into new powder through its UniMelt microwave plasma system.
- The lesson for working shops is not "buy a metal powder contract." It is treat supply resilience and process proof as part of the part plan: know your material source, prove the job, then ship.
Supply chain stories rarely make it into maker feeds. This one should. 6K Additive and ADDMAN just put a multi-year Nickel 718 powder contract in writing, with a circular buy-back path for used powder. That is not a product launch photo. It is how serious metal additive programs keep printing when feedstock gets scarce.
According to 6K Additive's September 30, 2026 PR Newswire release, the Pennsylvania powder maker and Florida-based ADDMAN signed a 30-month long-term supply agreement for Nickel 718 with a minimum value of US$8.1 million and a maximum of US$10.8 million. 6K Additive will supply high-performance Nickel 718 powders for ADDMAN's aerospace, defense, and energy work, with dedicated stocking support. The same release says 6K Additive will buy revert powder from ADDMAN and remake it into high-purity powder on UniMelt, the company's microwave plasma system.
That is the whole story in one sentence: domestic powder, stocked for production, with a path to recycle revert instead of treating used powder as waste.
What did 6K Additive and ADDMAN actually agree to?
A 30-month Nickel 718 powder supply deal with stocking support and a structured revert buy-back loop.
ADDMAN CEO Joe Calmese said in the release that the relationship strengthens delivery of high-performance components for critical aerospace, defense, and energy applications while supporting a more efficient powder lifecycle. 6K Additive CEO Frank Roberts framed UniMelt upcycled feedstock as a way to keep critical materials inside the U.S. supply chain and lower total cost of ownership through buy-back. Treat those as company statements from the primary release, not as independent lab audits.
Metal additive at ADDMAN's scale lives or dies on powder quality, availability, and documentation. A stocking agreement is the boring part that keeps production from stalling. The revert loop is the interesting part: used powder becomes feedstock again instead of a disposal line item.
My plant needs heat-resistant polymer parts, not Nickel 718. Does this news matter?
Yes, as a planning habit. Material security and process proof matter whether your part is metal or polymer.
You probably do not need a multi-million-dollar powder contract. You do need to know which polymer survives your heat and chemicals, and whether you can get it again next quarter. When fixtures, manifolds, or enclosures live near heat or solvents, engineering polymers such as PEEK and ULTEM already carry serious duty cycles today. That is why we run a PEEK and ULTEM high-temp parts path for buyers who need performance without waiting on a metal powder program.
Steal the 6K and ADDMAN question anyway. Where does your material come from? What happens if that SKU goes on allocation? Would a material swap or a geometry change beat another emergency buy?
Our replacement part has no OEM drawing and no material callout. What should we do first?
Scan or measure the mating hardware, rebuild design intent in CAD, then pick a process that matches duty cycle and quantity.
Aerospace powder contracts get the press. The daily failure mode on a plant floor is quieter: a discontinued bracket, a worn nest, a cracked guard after a changeover. That is a scan-to-CAD problem before it is a print problem. Capture the geometry, reconstruct the interfaces, grade what you know versus what you inferred, then decide polymer, insert metal, or hybrid.
If that is the hole you are in, our 3D scanning and reverse engineering service exists for that workflow. Ship the part or start from photos and measurements. You get a manufacturable model instead of another guess.
What this means if you actually need parts this month
6K Additive and ADDMAN closed a supply loop: qualify powder, stock it, print, reclaim revert, repeat. Your version of that loop is smaller and more practical.
- Write down the load, heat, and chemical environment.
- Get a trusted CAD model (OEM file, or scan and rebuild).
- Choose material for duty cycle and availability, not for hype.
- Fit-check a prototype when the interface is unforgiving.
- Move to a short production run without a minimum-order trap.
When you want that last step handled in the USA with a $20 minimum order, our Build and Ship workflow takes a file or a concept through to finished parts. We are not claiming we melt Nickel 718 powder. We are saying the same discipline (secure the material path, prove the process, then ship) is how custom polymer and engineered parts should get made for makers and plant teams. Start from the homepage instant quote when you already have a file.
Frequently asked questions
How large is the 6K Additive and ADDMAN powder agreement?
According to 6K Additive's September 30, 2026 PR Newswire release, the 30-month Nickel 718 supply agreement has a stated minimum value of US$8.1 million and a maximum of US$10.8 million.
What is the revert buy-back program?
The release says 6K Additive purchases revert powder from ADDMAN and processes it into new, high-purity powders using its UniMelt microwave plasma system, creating a circular supply chain for the partnership.
Does this mean every shop should switch to metal powder bed fusion?
No. The news is about feedstock security for ADDMAN's aerospace, defense, and energy work. Most plant fixtures and replacement parts still start with the right polymer and a verified CAD model.
I need heat-resistant custom parts for a fixture, not Nickel 718. Who do I email?
Email info@dcadditivepros.com with the duty cycle, quantity, and any photos or CAD. We will tell you straight whether high-temp polymer, scan/RE, or Build and Ship is the right next step.
Sources: 6K Additive, "6K Additive Secures 30-Month Nickel 718 Powder Supply Agreement with ADDMAN Valued at US$8.1-US$10.8 Million" (PR Newswire, September 30, 2026). Educational industry commentary for makers and engineering buyers. Not legal, financial, aerospace certification, or professional advice. Contract figures attributed to the linked primary release. DC Additive Pros does not claim metal powder production or Nickel 718 printing capability.
Have additive hardware or materials you want run on a real bench? Brands can reach DC Additive Pros at info@dcadditivepros.com.