Quality Certificates

Erie Campus, Michigan Certifications

• IATF 16949 – Heidtman Steel Products & Heidtman Tubular
• ISO 14001 – Heidtman Steel Products
• ISO 9001 – Heidtman Tubular

Butler, Indiana Certifications

• IATF 16949
• ISO 14001
• ISO 9001

Granite City, Illinois Certifications

• IATF 16949
• ISO 14001

East Chicago, Indiana Certifications

• IATF 16949