0001195953-07-000002 4 1 20070201 20070205 20070205 STEEL DYNAMICS INC 0001022671 3312 351929476 IN 1231 6714 POINTE INVERNESS WAY SUITE 200 FORT WAYNE IN 46804 2604593553 6714 POINTE INVERNESS WAY SUITE 200 FORT WAYNE IN 46804 NOLAN JOHN W 0001195953 4 34 000-21719 07580629 6714 POINTE INVERNESS WAY SUITE 200 FORT WAYNE IN 46804 4 1 edgar.xml PRIMARY DOCUMENT