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Case studies · foundry technical

Foundry technical wins, documented

Every study on this page is a real customer trial. We publish the problem, the corrective action, the trial-heat data and the outcome in the same shape a consulting report would carry them — so technical buyers can evaluate whether the same pattern applies to their own foundry.

Finished flange casting after pattern and gating correction, Sigma Malleable trial
Sigma Malleable·SG Iron 450/12

Eliminating shrinkage in an SG Iron 450/12 flange casting through pattern orientation and gating

Shrinkage at a heavy section transition on a 4.5 kg SG Iron 450/12 flange. Rotating the pattern 180° relocated the shrinkage-prone zone toward the main riser; revised gating carried hot metal to the critical section. First trial heat of 84 castings shipped with zero shrinkage rejection.

Rejection
95%
→
0%
July 2, 2026 · 6 min read
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Working on something similar?

If a defect pattern in your foundry looks like one of the studies here, our technical bench can review the process on a call and, where relevant, supply grade-matched Ferro Titanium, Ferro Silicon Magnesium or inoculants for a trial run. Contact the technical team.