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Research on Production Technology of R320Cr Rail Exported to Bangladesh by Baotou Steel
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Jia-wei Wang1, Gui-ying Zhao1, Zhi-yong Chen2, Yong-qiang Li3, Xue-song Pan4
Rare Earth Steel | 2021, 47(4) : 59 - 62
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Rare Earth Steel | 2021, 47(4): 59-62
• Quality of Variety and Experiment and Research •
Research on Production Technology of R320Cr Rail Exported to Bangladesh by Baotou Steel
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Jia-wei Wang1, Gui-ying Zhao1, Zhi-yong Chen2, Yong-qiang Li3, Xue-song Pan4
Affiliations
  • 1.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2.Steel-making Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 3.Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 4.International Economic and Trade Co., Ltd. of Baotou Iron & Steel (Group) Corp., Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2021-08-25 doi: 10.13647/j.cnki.btgkj.2021.04.015
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The R320Cr steel is a heavy rail steel grade that can be used to produce heavy haul railway rail according to the European Railway Standards. Its main technical indexes include tensile strength ≥1 080 MPa, elongation ≥9%, range for hardness of tread center (HB) is 320~360. Its smelting composition range, production technology and operating points of each process are determined through the laboratory researches as well as its technical indexes in industrial production could meet the technical requirements of standard.

R320Cr rail  /  smelting  /  rolling
王嘉伟, 赵桂英, 谌智勇, 李永强, 潘雪松. 包钢出口孟加拉R320Cr钢轨生产技术研究. 包钢科技, 2021 , 47 (4) : 59 -62 . DOI: 10.13647/j.cnki.btgkj.2021.04.015
Jia-wei Wang, Gui-ying Zhao, Zhi-yong Chen, Yong-qiang Li, Xue-song Pan. Research on Production Technology of R320Cr Rail Exported to Bangladesh by Baotou Steel[J]. Science & Technology of Baotou Steel, 2021 , 47 (4) : 59 -62 . DOI: 10.13647/j.cnki.btgkj.2021.04.015
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Year 2021 volume 47 Issue 4
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doi: 10.13647/j.cnki.btgkj.2021.04.015
  • Receive Date：2021-06-23
  • Online Date：2026-10-20
  • Published：2021-08-25
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History
  • Received：2021-06-23
Affiliations
    1.Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    2.Steel-making Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    3.Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    4.International Economic and Trade Co., Ltd. of Baotou Iron & Steel (Group) Corp., Baotou 014010, Inner Mongolia Autonomous Region, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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