XML 111 R79.htm IDEA: XBRL DOCUMENT v3.25.1

TRADE RECEIVABLES (Details Narrative) - BRL (R$) R$ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Trade Receivables
Financial expense	R$ 45,587	R$ 34,882

X

- References

No definition available.

+ Details

Name:	sid_DisclosureTradeReceivablesAbstract
Namespace Prefix:	sid_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	sid_FinancialExpense
Namespace Prefix:	sid_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration