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Ambition for innovation, Creativity for Longteng

  • Innovation Platform

  • Cutting-edge Technology

  • Advanced Manufacturing

  • Quality Management

Build Innovation system for Longteng

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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.

  • 7

    Major R&D Chief Engineer teams

  • 1000+

    R&D teams

  • 800+

    Professional and technical personnel

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
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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.

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Cutting-edge techonology

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    8

    national standards formulation and revision

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    20

    industry standards formulation and revision

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    420

    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

  • 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"

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Achievements

Longteng has won many honors and patents in the field of scientific research, and is constantly improving and developing.

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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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    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 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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    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 guide

    2018

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    Patent for a cooling control method for bearing steel balls

    2018

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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 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

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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.

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Hot-rolled flange production line
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High-speed end plate production line
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Section steel production line
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PC steel bar production line
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Wear-resistant ball production line
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Bearing steel ball production line
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Double high-speed line production line
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Welding material production line
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Machining center
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6600t forging machine
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14000t forging machine
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115t green electric furnace

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.

  • Quality System Certificate

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    ATF16949:2016 Management System Certification
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    Measurement Assurance Confirmation Certificate
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    AEOCN 3214960968
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    China Classification Society (CCS) Factory Accreditation Certificate
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    IATF 16949:2016 Management System Certification
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    GB/T23331-2020/ISO50001:2018 Energy Management System Certification
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    GB/T45001-2020/IS045001:2018 Occupational Health and Safety Management System Certification
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    GB/T24001-2016/1S014001:2015 Environmental Management System Certification
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    GB/T19001-2016/IS09001:2015 Quality Management System Certification
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    GB/T 23001-2017 Dualization Integration Management System Assessment Certificate

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.

  • X-ray fluorescence analyzer

  • ARL direct reading spectrometer imported from Switzerland

  • Hydrogen, oxygen and nitrogen gas analyzer

  • Scanning electron microscope

  • HCS infrared carbon and sulfur analyzer

  • Fully automatic tensile machine

  • Rockwell hardness tester

  • Fully automatic impact tester

  • 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.

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Visual platform monitoring

Establish a digital platform for the entire industry chain of "SRM supplier relationship management, MES+ERP, WeChat platform", involving production planning, production performance, quality management, sales management, procurement management, material management, warehouse management, measurement management, inspection and testing management, human resources management, accounting management, cost management and other full-industry chain and full-process data collection, monitoring and analysis. A quality judgment system is established to make quality traceability explicit through quality forecasting, furnace classification, casting failure tracking, quality reporting, data presentation, etc.

Visual platform monitoring

Establish a digital platform for the entire industry chain of "SRM supplier relationship management, MES+ERP, WeChat platform", involving production planning, production performance, quality management, sales management, procurement management, material management, warehouse management, measurement management, inspection and testing management, human resources management, accounting management, cost management and other full-industry chain and full-process data collection, monitoring and analysis. A quality judgment system is established to make quality traceability explicit through quality forecasting, furnace classification, casting failure tracking, quality reporting, data presentation, etc.