High carbon content and high strength heat-treated steel rail and method for producing the same

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United States of America Patent

PATENT NO 9157131
APP PUB NO 20110253268A1
SERIAL NO

12953382

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Abstract

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A high carbon content and high strength heat-treated steel rail including by weight 0.80-1.20% carbon, 0.20-1.20% silicon, 0.20-1.60% manganese, 0.15-1.20% chromium, 0.01-0.20% vanadium, 0.002-0.050% titanium, less than or equal to 0.030% phosphorus, less than or equal to 0.030% sulfur, less than or equal to 0.010% aluminum, less than or equal to 0.0100% nitrogen, and iron. The steel rail has excellent wear resistance and plasticity and can satisfy the requirement for overloading. A method for producing the steal rail by heating a slab to a heating temperature, multi-pass rolling, and accelerated cooling, wherein a maximum heating temperature (° C.) of said slab is equal to 1,400 minus 100[% C], [% C] representing the carbon content (wt. %) of said slab multiplied by 100.

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Patent Owner(s)

Patent OwnerAddress
PANGANG GROUP RESEARCH INSTITUTE CO LTDROOM 1006 10TH FLOOR UNIT 1 BUILDING 17 NO 89 HEZUO ROAD HIGH TECH ZONE CHENGDU SICHUAN PROVINCE 611730 CHENGDU CITY SICHUAN PROVINCE 611730
PANGANG GROUP CO LTD617067 SICHUAN PANZHIHUA XIANGYANG PANZHIHUA IRON AND STEEL GROUP CO LTD MINISTRY OF SCIENCE AND TECHNOLOGY PANZHIHUA CITY SICHUAN PROVINCE 617067
PANGANG GROUP PANZHIHUA STEEL & VANADIUM CO LTD617000 XIANGYANG VILLAGE EAST DISTRICT SICHUAN PANZHIHUA PANZHIHUA CITY SICHUAN PROVINCE 617000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Deng, Yong Panzhihua, CN 59 200
Guo, Hua Chengdu, CN 126 998
Liu, Ming Chengdu, CN 547 2816
Mei, Dongsheng Chengdu, CN 5 18
Tang, Li Panzhihua, CN 133 573
Tao, Gongming Panzhihua, CN 3 13
Xu, Quan Chengdu, CN 30 65
Zhao, Yun Panzhihua, CN 97 649
Zou, Ming Panzhihua, CN 28 383

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