<SEC-DOCUMENT>0001104659-20-065710-index.html : 20200526
<SEC-HEADER>0001104659-20-065710.hdr.sgml : 20200526
<ACCEPTANCE-DATETIME>20200526094649
ACCESSION NUMBER:		0001104659-20-065710
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20200522
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20200526
DATE AS OF CHANGE:		20200526

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STEEL DYNAMICS INC
		CENTRAL INDEX KEY:			0001022671
		STANDARD INDUSTRIAL CLASSIFICATION:	STEEL WORKS, BLAST FURNACES  ROLLING MILLS (COKE OVENS) [3312]
		IRS NUMBER:				351929476
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-21719
		FILM NUMBER:		20908395

	BUSINESS ADDRESS:	
		STREET 1:		7575 W JEFFERSON BLVD
		CITY:			FORT WAYNE
		STATE:			IN
		ZIP:			46804
		BUSINESS PHONE:		260 459 3553

	MAIL ADDRESS:	
		STREET 1:		7575 W JEFFERSON BLVD
		CITY:			FORT WAYNE
		STATE:			IN
		ZIP:			46804
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>tm2020850d1_8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: tm2020850d1_8k.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>tm2020850d1_ex99-1.htm <DESCRIPTION>EXHIBIT 99.1 <TEXT> Document 2 - file: tm2020850d1_ex99-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>3 <FILENAME>stld-20200522.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA <TEXT> Document 3 - file: stld-20200522.xsd
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.LAB <SEQUENCE>4 <FILENAME>stld-20200522_lab.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE <TEXT> Document 4 - file: stld-20200522_lab.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>5 <FILENAME>stld-20200522_pre.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE <TEXT> Document 5 - file: stld-20200522_pre.xml
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>tm2020850d1_ex99-1img001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: tm2020850d1_ex99-1img001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>8 <FILENAME>0001104659-20-065710-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 8 - file: 0001104659-20-065710-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>9 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 9 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>10 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>EXCEL <SEQUENCE>11 <FILENAME>Financial_Report.xlsx <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 11 - file: Financial_Report.xlsx
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>12 <FILENAME>tm2020850d1_8k_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 12 - file: tm2020850d1_8k_htm.html
Document 12 - RAW XML: tm2020850d1_8k_htm.xml
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>13 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 13 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>14 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 14 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>15 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 15 - file: FilingSummary.html
Document 15 - RAW XML: FilingSummary.xml
</DOCUMENT> </SEC-DOCUMENT>