What is DFARS melt-origin traceability for metals?
DFARS melt-origin traceability is the U.S. defense procurement requirement that certain specialty metals be melted (and in some cases poured) in the United States or a qualifying country, documented through an unbroken paper trail from the mill to the finished part. It is governed by DFARS clause 252.225-7009, and it relies on heat or lot numbers, mill test reports, and certificates of conformance to prove where each batch of metal originated.
DFARS melt-origin traceability is about answering one question for every piece of metal in a defense or aerospace part: where was it actually melted, and can you prove it? The U.S. Defense Federal Acquisition Regulation Supplement (DFARS) restricts the source of certain specialty metals used in defense items, and the documentation chain that proves that source is what people mean by melt-origin traceability.
What the specialty-metals clause requires
DFARS clause 252.225-7009 (Restriction on Acquisition of Certain Articles Containing Specialty Metals) generally requires that specialty metals such as titanium, certain nickel and cobalt alloys, and high-performance steels be melted in the United States or a qualifying country, subject to defined exceptions. The control point is the melt: where the raw metal was first brought to a molten state and cast into an ingot, billet, or heat. Some materials and downstream specifications also track the pour or atomization step.
How origin is documented and traced
- ·Heat or lot number: a unique identifier assigned at melt that follows the material through every downstream process.
- ·Mill test report (MTR) or certified material test report: states chemistry, mechanical properties, and the country of melt for the heat.
- ·Certificate of Conformance (CoC): a supplier statement that the delivered material conforms to the referenced specification and order requirements.
- ·Chain of custody: linked certs at each conversion step (melt, forging, rolling, machining) so the finished part traces back to the original heat.
Why aerospace primes insist on it
Prime contractors flow DFARS specialty-metals requirements down to their suppliers because non-compliant metal can make an entire shipment ineligible for a defense program, and because melt origin is tied to both flight safety and counterfeit-prevention. Heat and lot traceability also lets a failure be traced back to a specific batch of metal years after delivery. On MPBxChange, melt origin and heat/lot certificates can be attached as milestone evidence in a deal so that the documentation is reviewed before payment is released, and the platform runs export-control and denied-party screening before escrow funds. MPBxChange covers dual-use materials only and does not handle weapons, munitions, or ITAR/USML defense articles.
Frequently asked questions
Not exactly. For specialty metals under DFARS, the controlling event is where the metal was melted, which can differ from where the part was later machined or assembled. The mill test report states the country of melt for the heat.
The mill test report (also called a certified material test report) is the primary document. It ties a heat or lot number to the chemistry, properties, and country of melt, and downstream certificates of conformance keep that heat traceable through later processing.
No. MPBxChange supports dual-use materials only. It does not list or broker weapons, munitions, energetics, or ITAR/USML defense articles. Public DFARS traceability practices are described here for legitimate dual-use aerospace metals.