SUNG IL SIM Co., Ltd. is a specialized company established in 1978, pioneering the 100% localization and development of high-frequency bending machines in Korea. The company leverages decades of expertise in pipe manufacturing to produce and supply high-quality shop fabricated piping. It provides essential piping solutions for critical national industries such as nuclear power, coal-fired thermal power, combined cycle power, shipbuilding, and offshore plants. SUNG IL SIM maintains and operates an internal quality system that guarantees superior pipe manufacturing technology and quality. The company plays a leading role in both domestic and international pipe manufacturing technology within a rapidly evolving global competitive landscape.SUNGILSIMCo.,Ltd.isaspecializedcompanyestablishedin1978,pioneeringthe100%localizationanddevelopmentofhigh-frequencybendingmachinesinKorea.Thecompanyleveragesdecadesofexpertiseinpipemanufacturingtoproduceandsupplyhigh-qualityshopfabricatedpiping.Itprovidesessentialpipingsolutionsforcriticalnationalindustriessuchasnuclearpower,coal-firedthermalpower,combinedcyclepower,shipbuilding,andoffshoreplants.SUNGILSIMmaintainsandoperatesaninternalqualitysystemthatguaranteessuperiorpipemanufacturingtechnologyandquality.Thecompanyplaysaleadingroleinbothdomesticandinternationalpipemanufacturingtechnologywithinarapidlyevolvingglobalcompetitivelandscape.
Key Products/TechnologiesKeyProducts/Technologies
The main product categories include shop fabricated piping, induction bending, induction bending machines, engineering services, and high-pressure/forged fittings. Shop fabricated piping utilizes various materials such as carbon steel, stainless steel, alloy steel, duplex, Inconel, and titanium, with an annual production capacity of 50,000 tons and applicable sizes ranging from a minimum of 0.25 inches to a maximum of 130 inches. The company possesses over 500 Welding Procedure Specifications (WPS). Induction bending technology, successfully localized in Korea for the first time in 1981, is a core competency. This technology reduces welding points by up to 70% by replacing elbows and is applicable to various materials including carbon steel, stainless steel, alloy steel, and TMCP steel. It offers an annual production capacity of 32,000 tons, applicable sizes from 1 inch to 80 inches, thicknesses from 6mm to 130mm, and a minimum bending radius of 1.5DR. Furthermore, the company has commercialized multi-layer robotic welding technology for thick-walled pipes, which is applied in overseas export projects. Engineering services encompass design, stress analysis, and 3D modeling for piping, hangers, and supports.Themainproductcategoriesincludeshopfabricatedpiping,inductionbending,inductionbendingmachines,engineeringservices,andhigh-pressure/forgedfittings.Shopfabricatedpipingutilizesvariousmaterialssuchascarbonsteel,stainlesssteel,alloysteel,duplex,Inconel,andtitanium,withanannualproductioncapacityof50,000tonsandapplicablesizesrangingfromaminimumof0.25inchestoamaximumof130inches.Thecompanypossessesover500WeldingProcedureSpecifications(WPS).Inductionbendingtechnology,successfullylocalizedinKoreaforthefirsttimein1981,isacorecompetency.Thistechnologyreducesweldingpointsbyupto70%byreplacingelbowsandisapplicabletovariousmaterialsincludingcarbonsteel,stainlesssteel,alloysteel,andTMCPsteel.Itoffersanannualproductioncapacityof32,000tons,applicablesizesfrom1inchto80inches,thicknessesfrom6mmto130mm,andaminimumbendingradiusof1.5DR.Furthermore,thecompanyhascommercializedmulti-layerroboticweldingtechnologyforthick-walledpipes,whichisappliedinoverseasexportprojects.Engineeringservicesencompassdesign,stressanalysis,and3Dmodelingforpiping,hangers,andsupports.
Core AdvantagesCoreAdvantages
Pioneering the localization of high-frequency bending machines and accumulating over 40 years of technological know-how. Possessing world-class bending technology capable of bending large pipes over 80 inches in diameter and 130mm in thickness without cracking, even under high temperature and pressure. Supplying high-quality piping to critical national industries such as nuclear power, thermal power, offshore plants, and gas lines, with a high market share, particularly supplying approximately 90-94% of curved pipes for national natural gas supply pipelines. Operating specialized factories under domestic and international certification standards such as ASME, DNV, and KEPIC, and maintaining a stringent quality system with numerous quality and environmental safety certifications including ISO 9001, ISO 14001, and ISO 45001. Providing comprehensive services spanning engineering, procurement, induction bending, shop fabrication piping, and research and development. Implementing robotic welding and automated systems to enhance productivity, reduce costs, and shorten construction periods. Supplying products to global corporations like GE (USA) and Siemens (Germany), and exporting to 39 countries, demonstrating strong international market competitiveness. Recognized for corporate value through selection as a Global Hidden Champion by the Ministry of SMEs and Startups and as a 'Time-Honored Business'.Pioneeringthelocalizationofhigh-frequencybendingmachinesandaccumulatingover40yearsoftechnologicalknow-how.Possessingworld-classbendingtechnologycapableofbendinglargepipesover80inchesindiameterand130mminthicknesswithoutcracking,evenunderhightemperatureandpressure.Supplyinghigh-qualitypipingtocriticalnationalindustriessuchasnuclearpower,thermalpower,offshoreplants,andgaslines,withahighmarketshare,particularlysupplyingapproximately90-94%ofcurvedpipesfornationalnaturalgassupplypipelines.OperatingspecializedfactoriesunderdomesticandinternationalcertificationstandardssuchasASME,DNV,andKEPIC,andmaintainingastringentqualitysystemwithnumerousqualityandenvironmentalsafetycertificationsincludingISO9001,ISO14001,andISO45001.Providingcomprehensiveservicesspanningengineering,procurement,inductionbending,shopfabricationpiping,andresearchanddevelopment.Implementingroboticweldingandautomatedsystemstoenhanceproductivity,reducecosts,andshortenconstructionperiods.SupplyingproductstoglobalcorporationslikeGE(USA)andSiemens(Germany),andexportingto39countries,demonstratingstronginternationalmarketcompetitiveness.RecognizedforcorporatevaluethroughselectionasaGlobalHiddenChampionbytheMinistryofSMEsandStartupsandasa'Time-HonoredBusiness'.
Target IndustrieTargetIndustrie
Nuclear Power PlantsNuclearPowerPlants
Coal-fired Thermal Power PlantsCoal-firedThermalPowerPlants
Combined Cycle Power PlantsCombinedCyclePowerPlants
Shipbuilding IndustryShipbuildingIndustry
Offshore Plant IndustryOffshorePlantIndustry
Gas Lines and Natural Gas Supply PipelinesGasLinesandNaturalGasSupplyPipelines
Petrochemical FacilitiesPetrochemicalFacilities
Chemical-Oil-Gas PlantsChemical-Oil-GasPlants
Major MarketsMajorMarkets
Egypt, LibyaEgypt,Libya
Japan, China, Taiwan, India, UAE, IndonesiaJapan,China,Taiwan,India,UAE,Indonesia
GermanyGermany
USA, CanadaUSA,Canada
Certifications/PatentsCertifications/Patents
ISO 9001 Quality Management System CertificationISO9001QualityManagementSystemCertification
KEPIC (Korea Electric Power Industry Code) Qualification CertificationKEPIC(KoreaElectricPowerIndustryCode)QualificationCertification
ISO 14001 Environmental Management System CertificationISO14001EnvironmentalManagementSystemCertification
ISO 45001 Occupational Health and Safety Management System CertificationISO45001OccupationalHealthandSafetyManagementSystemCertification
CE(DVGW), PED, CPR FPC, EN ISO 3834-2 CertificationsCE(DVGW),PED,CPRFPC,ENISO3834-2Certifications
Acquisition of Korea New Technology (KT) Mark (1993, 2000)AcquisitionofKoreaNewTechnology(KT)Mark(1993,2000)
Designation as an Excellent Technology Competitiveness Company (SME Agency, 1999)DesignationasanExcellentTechnologyCompetitivenessCompany(SMEAgency,1999)
Quality Competitiveness Excellent Company Certification (Ministry of Commerce, Industry and Energy, 2004, 2005)QualityCompetitivenessExcellentCompanyCertification(MinistryofCommerce,IndustryandEnergy,2004,2005)
Selection as a Global Hidden Champion (Ministry of SMEs and Startups, 2019)SelectionasaGlobalHiddenChampion(MinistryofSMEsandStartups,2019)
Selection as a 'Time-Honored Business' (2023)Selectionasa'Time-HonoredBusiness'(2023)
Designation as an Excellent Export/Import Safety Management Company (2021)DesignationasanExcellentExport/ImportSafetyManagementCompany(2021)
Method and Apparatus for Bending Curved Pipes by Hot Bending Machine (Industrial Property Right)MethodandApparatusforBendingCurvedPipesbyHotBendingMachine(IndustrialPropertyRight)
Commercialization of Multi-layer Robotic Welding Technology for Thick-walled PipesCommercializationofMulti-layerRoboticWeldingTechnologyforThick-walledPipes