1, 15MnNiNbDR Details:
The steel plate belonging to 15MnNiNbDR is a low-temperature pressure vessel container class, 15MnNiNbDR Wugang steel plate is an impact temperature of minus -45°, with high strength and high toughness characteristics, the emergence of 15MnNiNbDR steel plate fills the gap between minus 40 degrees and minus 70 degrees of steel used in low-temperature containers in the industry. Commonly used in the manufacture of low temperature pressure vessels, low temperature spherical storage tanks, high parameter low temperature cylindrical containers, low temperature ethylene spherical tanks and other equipment. In particular, the low-temperature container plate of Wugang has good performance, and the performance remains good under the same impact temperature.
2, low temperature steel:
For the manufacture of pressure equipment and structures used below -20 ° C, requiring steel with good low temperature toughness and weldability. According to the different use temperature, the main steel is low alloy high strength steel, nickel steel and austenitic stainless steel.
3. Implementation standard of 15MnNiNbDR: Implementation of national standard GB/T 3531 standard.
4. Delivery status of 15MnNiNbDR: The general delivery status is normalizing + tempering. PS: If the customer needs other special delivery conditions should be indicated in the contract.
5, the packaging, marking, quality certificate of 15MnNiNbDR: the packaging, marking, quality certificate of steel plate should comply with the provisions of GB/T 247.
6. Chemical composition of 15MnNiNbDR (melting analysis %) :
C: less than or equal to 0.180 Si: between 15-0.50
Mn: 1.20-1.60 P: less than or equal to 0.020
S: less than or equal to 0.010 Ni: 0.30-0.70
Nb: 0.01-0.04 Al: 0.015
Cr: less than or equal to 0.45
7. Directions and parts of use:
Steel plate 15MnNiDR for cryogenic vessels is widely used in the manufacture of cryogenic welded pressure vessels. The steel plate for low-temperature pressure vessels produced by Wugang has pure steel, low inclusion content, excellent performance, good strength and toughness and low-temperature toughness, which fully meets the standard requirements, especially the low-temperature impact toughness, which is far higher than the standard requirements. The low-temperature pressure vessel steel plate produced by WUGang has provided a lot of steel plate to Dalian Jinzhong, Lanshi General Factory, Fushun Machinery Factory, North China Oilfield, Yanshan Petrochemical, Luoyang Petrochemical Machinery Factory, Guangzhou Sugar Machinery Factory, Changsha Chemical Machinery Factory, Nanjing Chemical Machinery Factory, Wuhan Donghai Petrochemical and other users, mainly used in the manufacture of petrochemical low-temperature equipment. For example, Yanshan Petrochemical Bureau 60,000 tons/year ethylene renovation and expansion project ethylene rectification tower, Xinjiang Yaha condensate gas field 8.1-2000X 10000 secondary condensate gas separator, North China oil field heat exchanger, propylene reactor buffer tank cylinder, Jinan Refinery de-COS tower, Low temperature storage tank, methanol scrubber and H2S concentration tower in Ordos methanol and dimethyl ether project, as well as the cold tower and other chemical equipment in the CO and MEOH unit of Wison syngas project, the product quality fully meets the needs of low temperature pressure vessel equipment design and practical application, and has won high praise from the user department, and the application prospect is increasingly extensive.
