Turnatorii de fier gri vs ductil (GS) din Franța — Lista de verificare a cumpărătorului
2026-07-17
French foundries often describe iron families with local shorthand: fonte, FGL, Fontes GS. For European purchasing teams, the distinction between grey iron and ductile (spheroidal graphite / GS) drives mechanical performance, wall thickness strategy and machining allowances.
Ce vă poate spune directorul
In StålFe’s iron category, filter and open profiles to see whether public federation fields mention grey iron, GS/ductile, or only a generic “fonte” tag. Many members under-declare the split — treat missing GS language as a question for the RFQ, not proof of absence.
Lista de verificare a cumpărătorului
Metallurgy & grades
- Target EN grades (or customer equivalent) and hardness windows.
- Cerințe de nodularitate/matrice pentru programele ductile.
- Așteptări de tratament termic (ca turnat vs normalizat / temperat).
Potrivirea procesului
- Nisip verde vs lipit chimic pentru suprafață și clasa dimensională.
- Shell / Croning when thinner sections or better surface are required — see shell moulding.
- Complexitatea centrală și subcoturile care forțează rutele frigorifice sau furan.
Machining & finishing
- Utilizare internă vs ateliere de mașini partenere.
- Stock allowances aligned to ISO 8062 thinking.
Documentare
- EN 10204 3.1 / 3.2 scope — certificate guide.
- NDT class for safety or pressure parts — NDT handbook.
Lectură profundă
CTA
Shortlist iron houses in the directory, then request a quote with grade, CT class and certificate level explicit on page one of the RFQ.