Traceability

Every part comes with its history

Scan the QR on a part and its page opens. Two things are on it: the genealogy — who made the metal and from which heat — and the test history — what was measured, by whom, and when. Nothing on it asks you to take our word.

Genealogy — nine links from your part to the melt

1Your part
Piece code, alloy and temper, size, current status.EXA-recorded
2Cut
Date, saw and operator; the code was marked on the part at the saw.EXA-recorded
3Plate and lot
The plate it was cut from, its size, and when we received it.EXA-recorded
4Rolling lot / plate number
The mill's rolling batch.mill-supplied
5Heat-treatment batch
The batch that gave the plate its temper (T651, H111 …).mill-supplied
6Slab / billet
The slab the plate was rolled from.mill-supplied
7Cast / heat number
The heat on the mill certificate — the number your QA asks for.mill-supplied
8Primary melt
The melt the heat was cast from.mill-supplied
9Mill and certificate
The producing mill and its EN 10204 3.1 (or 3.2) certificate.mill-supplied

Each link is marked mill-supplied or EXA-recorded. A link the mill did not supply reads not supplied by mill — never guessed.

Mill certification · EXA verification · third-party testing

Three different things. The mill certifies the heat. EXA checks that the plate on our rack is that heat and that its chemistry and temper agree with the certificate — a check, not a substitute for the certificate. A partner NABL laboratory tests your lot when your specification asks for it. See a sample mill certificate →

Test and heat history

when	test	by	what it confirms
At the mill	Chemistry and mechanicals per heat	mill, on the certificate	the heat meets the alloy and temper specification
At the mill	Heat treatment and stretch	mill, on the certificate	the temper (T651, H111 …)
Before sale	Certificate match	EXA	the plate on our rack is the one the certificate describes
Before sale	PMI by handheld XRF	EXA	chemistry agrees with the certificate — no substituted alloy
Before sale	Conductivity and hardness	EXA	the temper is what the certificate says
On request	Tensile, OES chemistry, ultrasonic	partner NABL lab	an independent report on your lot, attached to every piece from it
On request	PMI on the outgoing piece	EXA	the piece you receive, not just the plate
Every step	Process record	EXA	goods-in, allocation, cut, inspection, dispatch — appended, never edited

On the part

Scan to open a sample part's page — P-0402-A26:AJ30.

The code is marked on the metal at the saw and printed on the sticker with the alloy, size, heat number and certificate type, so the part stays identifiable after the sticker is gone.

What we guarantee

The chain from our goods-in to your delivery, and that every mill-supplied item is shown exactly as the mill supplied it. A lot that fails a test before sale is quarantined and never sold.

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For enterprises: the digital record matches the physical metal

Vendors scan the billet QR and pass its unique ID to the parts made from that block

Shipment from the mill is tested and taggedBillets are cut to size and retaggedVendors scan the billetMachined parts carry the IDThe enterprise sees part-level history

Software alone cannot prove that a record matches the metal.
EXA holds the metal and creates the digital record, so the two cannot drift apart.

Enterprises oversee material procurement

The enterprise can review the material behind each part its vendors make: alloy, heat, mill, certificate, test result.
Each lot is tested against the programme’s approved mills and specifications before it reaches a vendor.
Material procurement audits become simpler, with EXA as a single point of truth.
A vendor’s purchases appear only with the vendor’s consent. Prices are never shown.

Genealogy, chain of custody and testing

Genealogy: each part traces back through the cut piece and the plate to the heat and the mill certificate.
Chain of custody: every hand-over is recorded, from the mill to the customer.
Testing: material tests and lab reports are attached to the lot and to every piece cut from it.

Certified by the mill. Checked by EXA. Tested by a lab if you need it.

Mill certification

What the mill certifies. The EN 10204 3.1 certificate for the heat: chemistry, tensile and yield strength, elongation, heat treatment, thickness, mill and certificate number. Supplied with every part. Sample MTC →

EXA verification

What we check independently, before sale. Certificate matched to the plate · PMI by handheld XRF against the certificate chemistry · conductivity and hardness (temper) · dimensions at the cut. Recorded on the part’s page. This is a check on the mill’s certificate, not a replacement for it.

Third-party testing

When your specification asks for it. Chemistry (OES), tensile, yield, elongation, ultrasonic and customer-specified tests from a partner NABL-accredited laboratory, ordered with the part. The report names the lab and is attached to every piece from the lot.