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Innovation Platform
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Cutting-edge Technology
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Advanced Manufacturing
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Quality Management
Build Innovation system for Longteng
Leading the overall improvement of Longteng's business philosophy with the strategy of technological innovation
Talent is the core force of enterprise development and the source of creating enterprise value. Longteng Special Steel pays attention to talent training and team building, and has built an elite team of high-quality, high-level and high-skilled talents, laying a solid talent foundation for the sustainable development of the enterprise.
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8
Major R&D Chief Engineer teams
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800+
Professional and technical personnel
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1000+
Research Team
Construction of three professional innovation platforms
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National enterprise
technology center
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Jiangsu Marine Equipment Steel
Engineering Research Center
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Jiangsu Marine Engineering Metal Materials
Engineering Technology Research Center
Maintaining in-depth cooperation with domestic and oversea universities
Longteng co-founded the "Innovation and Development Research Institute" with Beijing University of Science and Technology, and has long cooperated with many well-known domestic scientific research institutes such as Beijing University of Science and Technology, Northeastern University, Jiangsu University of Science and Technology, Nanjing Institute of Technology, Changshu Institute of Technology, and Beijing Iron and Steel Design and Research Institute, with a total investment of nearly 3 billion yuan in research and development funds, which has greatly enhanced the company's technological innovation potential.
Cutting-edge techonology
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10
national standards formulation and revision
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30
industry standards formulation and revision
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669
industry patents
Ace technology
Adhere to the path of differentiated development, adhere to the small product and big market development strategy, and actively build a new development pattern
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Bulb flat steel
The first domestic "double straightening + strong straightening" micro-deformation curvature control technology.
The product market share has accounted for more than 50% of the national market for 13 consecutive years.
The steel supplier for the world's first and largest bidirectional icebreaking polar research vessel "Xuelong 2".
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Grinding ball
The world's first semi-autogenous grinding "time-space dynamic ball adding method" and ball mill "time-space delayed ball adding method".
The first automated hot forging steel ball production process combining die forging and free forging in China, the innovative results have been recognized as the world's leading scientific and technological achievements by the China Metallurgical and Mining Enterprises Association.
"Champion of individual field in manufacturing industry", its overall scale ranks first in China and second in the world.
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PC steel bar
The independently innovated 30MnSiL steel grade that is not prone to brittle fracture has solved the key echnology problem steel bars. The brittle fracture rate is below 0.01%, and the national market share is 85%.
"Champion of individual field in manufacturing industry", It is in the leading position in the industry and is known as the "The Crown of China PC Steel Bar"
Achievements
Longteng has won many honors and patents in the field of scientific research, and is constantly improving and developing.
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A ball flat steel with gradient performance and its preparation method2024
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A powder adding machine for anti caking flux cored welding wire2024
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A powder adding machine for anti caking flux cored welding wire2024
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A powder adding machine for anti caking flux cored welding wire2022
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A safe preparation system for high volatile coal types2023
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A monitoring method for blast furnace coal injection system2023
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A ball flat steel with gradient performance and its preparation method
2023
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A method and system for controlling the fineness of coal powder in a coal mill2023
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A ball flat steel with gradient performance and its preparation method
2024
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A powder adding machine for anti caking flux cored welding wire
2024
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A powder adding machine for anti caking flux cored welding wire
2024
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A powder adding machine for anti caking flux cored welding wire
2022
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A safe preparation system for high volatile coal types
2023
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A monitoring method for blast furnace coal injection system
2023
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A ball flat steel with gradient performance and its preparation method
2023
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A method and system for controlling the fineness of coal powder in a coal mill
2023
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A roller device2020
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Flange roll spray number device2022
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A production method for reducing the consumption of steel materials in top feeding high-power electric arc furnaces2022
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Patent for observable ingot pouring device2019
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A kind of adjustable roll patent2019
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A kind of PC steel bar barber cage patent2019
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Patent for a sealed rotary mold2019
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A PC steel bar tensile test fixture2019
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A roller device
2020
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Flange roll spray number device
2022
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A production method for reducing the consumption of steel materials in top feeding high-power electric arc furnaces
2022
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Patent for observable ingot pouring device
2019
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A kind of adjustable roll patent
2019
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A kind of PC steel bar barber cage patent
2019
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Patent for a sealed rotary mold
2019
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A PC steel bar tensile test fixture
2019
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A kind of high strength lifting tongs patent2019
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A kind of straightening wheel for steel bar straightening machine patent2019
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Patented take-up reel with rotating stopper bar2019
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Patent for a circulating heating device for pickling2019
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Patent for Frequency Control Circuit for Large Inclination Belt Machine2015
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Pressurized Leak Plugging Device for Energy Medium Pipelines2016
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Patent for a moving roller conveyor for sawing round bars2018
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Argon blowing device for intermediate packages2016
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A kind of high strength lifting tongs patent
2019
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A kind of straightening wheel for steel bar straightening machine patent
2019
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Patented take-up reel with rotating stopper bar
2019
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Patent for a circulating heating device for pickling
2019
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Patent for Frequency Control Circuit for Large Inclination Belt Machine
2015
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Pressurized Leak Plugging Device for Energy Medium Pipelines
2016
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Patent for a moving roller conveyor for sawing round bars
2018
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Argon blowing device for intermediate packages
2016
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Patent for an adjustable rolling guide2018
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Patent for a cooling control method for bearing steel balls2018
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Steel Rods for Prestressed Concrete Gold Cup Award Winner2017
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Hot rolled ductile flat steel Gold Cup Certificate2018
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A kind of blast furnace pre-injection coal lance plugging detection system patent2016
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A kind of patent with pressure plugging2016
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A patent for an internal lifting tool2016
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Patent for an adjustable rolling guide
2018
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Patent for a cooling control method for bearing steel balls
2018
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Steel Rods for Prestressed Concrete Gold Cup Award Winner
2017
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Hot rolled ductile flat steel Gold Cup Certificate
2018
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A kind of blast furnace pre-injection coal lance plugging detection system patent
2016
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A kind of patent with pressure plugging
2016
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A patent for an internal lifting tool
2016
Advanced Manufacturing
The company has always adhered to the principle of "extending the industrial chain, improving the value chain, and opening up the supply chain", seeking differentiated improvement in the market segments, and developing "specialized, refined, and innovative" products in a coupled manner. It has now become a comprehensive steel enterprise integrating traditional industries and deep processing.
Quality builds reputation, innovation drives development
Longteng Special Steel has passed ISO9001, ISO14001, ISO45001, ISO50001, GB/T 23001, IATF16949 and other management system certifications as well as factory and product certifications from the world's top ten classification societies in China, Italy, the United States, Britain, France, Japan, South Korea, Russia, Germany and Norway.
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Quality System Certificate
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Product certification
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2023 Welding Material Environmental Management System Certification -
ISO45001 -
ISO14001 -
ISO9001 -
Integration of Two Industries AA Certificate -
IATF 16949 Certificate -
ME LT S -
ME LT Q -
ME LT -
Steel Ingot API Certification Certificate -
ISO45001 Occupational Health and Safety Management System Certificate -
ISO 14001 Environmental Management System Certificate -
ISO 9001 Quality Management System Certificate -
Welding Material Quality Management System Certificate
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Steel Ingot - RINA Italian Classification Society Certificate -
Steel Ingot LR British Classification Society Certificate - Ship Steel, Steel Ingot, Anchor Chain Steel -
Steel Ingot KR Korea Classification Society Certificate -
PC Steel Rod KS Certificate -
JQCN19001-002 Steel JIS Certification Certificate -
Special Steel ABS American Bureau of Shipping Ingot Certificate -
Welding material ABS certificate -
Approved by the Rolling Round Steel Factory for Anchor Chains and Accessories of China Classification Society -
Approved by China Classification Society Ball Flat Steel Factory -
Approved by China Classification Society Welding Wire Rod Factory -
Approved by China Classification Society Steel Billet Factory -
China Classification Society Steel Ingot Factory Accreditation Certificate -
Approved by China Classification Society Flat Steel Factory -
Certificate of Approval for L-shaped Steel Factory by China Classification Society
Testing Center
The Testing and Analysis Center is responsible for the testing and analysis of each branch factory. It has the ability to test and analyze the performance indicators of raw materials, billets, and steel products, and has the necessary testing and analysis capabilities in low and high magnification testing, inclusion and gas analysis, chemical composition analysis, mechanical properties testing, etc. It can quickly and accurately provide various testing and analysis results to serve each branch factory.
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X-ray fluorescence analyzer
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ARL direct reading spectrometer imported from Switzerland
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Hydrogen, oxygen and nitrogen gas analyzer
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Scanning electron microscope
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HCS infrared carbon and sulfur analyzer
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Fully automatic tensile machine
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Rockwell hardness tester
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Fully automatic impact tester
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Three-station upsetting and other test equipment
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Hardness tester
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Microcomputer screen display hydraulic universal testing machine
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HORIBA Oxygen, Nitrogen and Hydrogen Gas Analyzers
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X-ray fluorescence spectrometer
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Hardness tester
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Microcomputer screen display hydraulic universal testing machine
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HORIBA Oxygen, Nitrogen and Hydrogen Gas Analyzers
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X-ray fluorescence spectrometer
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Elemental Analyzer
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metallographic microscope
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ARL Direct Reading Spectrometer
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Zeiss-type scanning electron microscope
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Elemental Analyzer
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metallographic microscope
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ARL Direct Reading Spectrometer
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Zeiss-type scanning electron microscope
Digital quality management
The company uses big data to establish a digital quality management platform to make the quality formation process explicit and visual.
