Iron Dust Explosions at Hoeganaes Corporation, Gallatin, Tennessee, USA

Chinese version

Brief information

Accident 1

Accident 2

Accident 3


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Investigation progress of CSB

Feb.16,  2011:  CSB Continues Investigation of Fatal Fire at Hoeganaes Corporation Located Outside of Nashville, Tennessee

May 11, 2011: U.S. Chemical Safety Board Continues Investigation of Two Accidents at the Hoeganaes Corporation Facility

May 27, 2011: CSB Deploys to a Third Accident at Hoeganaes Corporation Metal Powder Plant in Gallatin, Tennessee

June 03, 2011: Statement for the news conference

Video of explosion test of iron dust made on May 26, 2011 (By CSB)

Video of testing on metal dust collected after the January 31, 2011, incident at the Hoeganaes Corporation in Gallatin, TN. The video shows two different tests, the first clip is filmed at normal speed followed by the two tests filmed in slow motion at 1,000 frames a second.

Download the video

Background knowledge

Hoeganaes Corporation

Hoeganaes Corporation is the world leader in the production of Atomized Steel and Iron Powders. We cover the globe with facilities in Asia, Europe and the Americas.

Hoeganaes Corporation has driven the industry's growth with successive waves of technology for a wide variety of applications. The largest applications for atomized steel and iron powders are in the production of pressed and sintered parts for the automotive and industrial markets. The manufacturing of these parts is accomplished through the powder metallurgy process (PM). Hoeganaes Corporation's unique products also serve a diverse set of industries, including welding, brazing, photocopy, chemical, electromagnetic, and metallurgical applications.

Hoeganaes Corporation has been certified under the ISO/TS 16949 quality management system and the ISO 14001 Environmental management system.


The CSB is an independent federal agency charged with investigating serious chemical accidents. The agency's board members are appointed by the president and confirmed by the Senate. CSB investigations look into all aspects of chemical accidents, including physical causes such as equipment failure as well as inadequacies in regulations, industry standards, and safety management systems.

The Board does not issue citations or fines but does make safety recommendations to plants, industry organizations, labor groups, and regulatory agencies such as OSHA and EPA. CSB’s final report including can be viewed at

Explosion characteristics of iron dusts

Post address: Box 327, Industrial Explosion Protection Institute, Northeastern University, 110006, Shenyang, P. R. China
Office: Room 401, Metallurgy Building, Northeastern University, Wenhua road 3-11, Heping district, Shenyang, P. R. China
Tel: 0086 24 83687757 , 130 7249 8962
Fax: 0086 24 23906316
Contact: Dr. Shengjun ZHONG