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Information × Registration Number 0307U003674, 0105U007279 , R & D reports Title Certification of the technology of making boiler tubes to specification TU 14-3-460, control testing and granting a permission of their guarantee to DTZ JSC. popup.stage_title Атестація технології виробництва котельних труб по ТУ 14-3-460, проведення контрольних жароміцних випробувань і видача ВАТ "ДТЗ" підтвердження на їх гарантію. Head Oprishko L.V., Registration Date 11-05-2007 Organization State Scientific Research Tube Institute popup.description2 Control check of the technology for making boiler tubes has been carried out at DTZ JSC. The tubes are made by hot and cold rolling from billets of steel 20 and 20-PV produced at MMZ ISTEEL (Ukraine) and OEMK JSC respectively. The tube metal quality has been investigated for the entire production cycle, both for the current technology and the exptrimental one (in the part of the heating regimes). Heat resistance properties have been determined for these tubes and a Conclusion of the right of giving guarantee be DTZ JSC has been worked out. Product Description popup.authors popup.nrat_date 2020-04-02 Close