Products made in Zhejiang are positioned to be “China’s first-rate and world-class” products. Therefore, the principles of high precision, high strength and high pressure resistance are observed when formulation group specifications, which impose higher requirements on key areas of products like material selection, technical performance, testing methods, testing rules, labeling, packaging, transport, storage and quality commitment.
As a member of the National Technical Committee on Boilers and Pressure Vessels of Standardization Administration of China, Zhongda Advanced Material has participated in the compilation of NB/T47019.1, NB/T47019.5 and NB/T 47019.6, with the compilation of NB/T 47019.5 Stainless Steel being presided over by Zhongda New Materials. In 2020-2021, the company participated in the amendment of these standards in addition to formulating the NB/T47019.9 standard. Compared with the 2011 version, the 2021 new standards further classify stainless steel seamless pipes to satisfy diversified customer needs.
Presently, national standards being drafted by Zhongda Materials included Seamless austenitic stainless steel pipes for high pressure hydrogenation unit, Sanitary stainless steel clean pipe, Seamless stainless steel pipes for oxygen pipeline and Stainless austenitic stainless steel pipes for nuclear power instrument pressure piping hook-up (project presided over by Zhongda).
Name of the project/outcome | Project application status | The record number and number of the project plan | Remark |
R&D and application of key technologies of high-strength, high-corrosion resistant super duplex stainless steel seamless steel pipe | Provincial Science and Technology Plan Project | 2019 | |
Industrialization of nuclear-grade stainless steel seamless steel pipes | Third Prize of Provincial Science and Technology Progress Award | 2018 | |
Key components of offshore floating storage and offloading units | The first set in Jiaxing | 2017 | |
The key components of the primary circuit device of the nuclear island | The first set in Jiaxing | 2016 | |
Research and development of UNS N08810 seamless steel pipe | Alliance Science and Technology Program | 2011LM104-RD05 | 2016 |
Iron-nickel-based corrosion-resistant alloy seamless steel pipe | Appraisal of scientific and technological achievements | 2014 | |
Industrialization of nuclear-grade stainless steel seamless steel pipes | Major scientific and technological projects and major industrial projects | 2009C01028-1 | 2013 |
0022Cr25Ni7Mo4N duplex stainless steel seamless steel pipe | County Science and Technology Progress Award | Prize | 2011 |
022Cr25Ni7M04N super duplex stainless steel seamless steel pipe | Appraisal of scientific and technological achievements | 2010 | |
00Cr22NiMo3N two-way stainless steel seamless steel pipe | County Science and Technology Progress Award | First prize | 2006 |
00Cr22NiMo3N two-way stainless steel seamless steel pipe development and industrialization | Municipal Science and Technology Progress Award | Third | 2006 |
Iron-nickel-based corrosion-resistant alloy seamless steel pipe | County Science and Technology Progress Award | Third |
The name of the certificate | Certificate number | Material grade | The time of initial collection | Issuing Authority |
Material Technology Review Certificate | 094-X1 | S32750(00Cr25Ni7Mo4N) | 2010 | National Technical Committee for Standardization of Boilers and Pressure Vessels |
Material Technology Review Certificate | 02-2019 | N5 1402(UNS N08825) | 2014.1 | Heat exchanger sub-technical committee |
Material Technology Review Certificate | 044-X2 | S22053(00Cr23Ni5Mo3N) | 2013 | National Technical Committee for Standardization of Boilers and Pressure Vessels |