Technical Approvals Z-1.4-50 and Z-1.4-228 extended

15. August 2017von Andreas Zeller

This year the extension of our German Technical Approvals Z-1.4-50 for Steel Grade 1.4571 (316 TI) and Z-1.4-228 for Steel Grade 1.4362 (S32304) were due. We are happy to inform you that both certificates have been extended by German authority DIBt until 2022 without any constraints or complaints.

If you are interested we will gladly send you our technical approvals (German edition). Feel free to send a request to