What the module does
Classification
- Graphite form I–VI per ISO 945-1 — from lamellar flakes to fully spheroidal nodules
- Nodularity % — the single number that qualifies a ductile iron heat
- Nodule size and count with per-field distribution
- Lamellar & vermicular analysis for grey and compacted graphite irons
Workflow & output
- Unetched fields analyzed directly — graphite reads dark on the bright polished matrix
- Calibrated sizing — particle dimensions in true µm, tied to the engaged objective
- Field accumulation across the casting section
- Excel & PDF reports with distributions, letterhead and embedded micrographs
From polished field to nodularity %
- Capture unetched — graphite analysis works on the as-polished surface; capture straight from the live camera tab.
- Detect graphite — particles are segmented from the matrix automatically, sized in calibrated µm.
- Classify forms — each particle is assigned a form (I–VI); borderline particles are flagged for review.
- Compute — nodularity %, nodule count and size distribution, per field and accumulated.
- Report — one click to Excel or PDF on your letterhead, distributions and micrographs included.
Module summary
| Item | Detail |
|---|---|
| Standards | ASTM A247 · ISO 945-1 |
| Classification | Graphite form I–VI, spheroidal / vermicular / lamellar |
| Metrics | Nodularity %, nodule count, nodule size distribution |
| Materials | Ductile (SG) iron, grey iron, compacted graphite iron |
| Calibration | Bound to the engaged objective — µm-true particle sizing |
| Reporting | Excel & PDF, customer letterhead, embedded micrographs |
Common questions
Which graphite standards does MT-IAS Pro support?
ASTM A247 and ISO 945-1. The module classifies graphite form I–VI, measures nodule size and count, and computes nodularity percentage — plus lamellar and vermicular analysis for grey and compacted irons.
What does the module report for ductile iron?
Nodularity %, nodule count, size distribution and per-field form classification — exported to Excel or PDF on your letterhead with the micrographs embedded.
Does it handle grey and compacted graphite iron too?
Yes. Lamellar (flake) and vermicular (compacted) analysis is part of the same module, so one workflow covers the whole cast iron family.
How is nodularity actually calculated?
From the classified particle population — the fraction of graphite area in nodular forms. The full method, with the form classes and what moves the number, is in our explainer: Nodularity, measured.
Qualify your next heat with confidence
Bring your ductile iron samples to a demo — capture, classify and report, end to end.