Claim · draft · confidence 0.5

Generated from the Hyphae knowledge graph.

Statement: Slag content upper bound of ~3 wt% in wrought iron — the task hint mentions 1–3 wt%; Britannica says 1–2 wt%. The 3% figure may refer to lower-grade or poorly consolidated bar iron.

Needs verification (non-blocking)

Only the 1–2% figure is verified to a citable source (Britannica). The upper bound of 3% is mentioned in the task hint but a specific citable source has not been identified. Tylecote (1992) or ASM Handbook may provide clarification.

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