Registrations and Certifications

Welded Tube was the first ERW tube producer in North America registered to the now widespread ISO 9000 business system series of standards.

A list of Welded Tube’s Registrations is shown below:

1. Welland API 5CT-1358

2. Welland Extension Letter API-Q1-2582-5CT-1358-5B-0185

3. Welland API Q1-2582

4. Welland API 5B-0185

5. Port Colborne API 5B-0109

6. Port Colborne Extension Letter API-Q1-2584-5B-0109

7. Port Colborne API Q1-2584

8. Lackawanna API Q1-2405

9. Concord ISO 9001 2015

10. Concord – Hollow Structural Sections, Environmental Product Declaration (EPD)

A list of Welded Tube’s technical information documents is shown below:

1. Technical Information table

2. RoHS letter

3. REACH letter

4. WTC Conflict Minerals RMI_CMRT_6.4.

5. WTOC Energy Tubular Products, Environmental Product Declaration

6. LEED 2025