Cor bolt
High Corrosion Resistance Bolts
Cor bolt (High Corrosion Resistance Bolt) is a new concept corrosion resistant bolt that improves / compensates the problems of current bolts by applying surface heat treatment new technique to metal bolts.
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Cor bolt resistance test
·시험기관 : 포항 산업과학 연구원
Testing Institution : POSTECH
·샘플 종류 : 산질화, 산질화+도장, STS304, 복합코팅
Sample types : Oxidation, Oxidation + Painting, STS304, Composite coating, Al plating
·시험방법 : SST 및 복합사이클부식시험 (CCT)
Test Method: SST and Combined Cycle Corrosion Test (CCT)
·CCT조건 : Fog(35°C-2hr) ▶Dry(60°C- 4hr) ▶ Humid(50°C-2hr)
CCTCondition:Fog(35°C-2hr) ▶Dry(60°C-4hr) ▶Humid(50°C-2hr)
테스트 결과 : 코볼트(산질화+도장)와 STS304만이 720시간 녹발생 없음
Corrosion resistance test : Cor bolt (oxynitrate + paint) and STS304 only have no more than 720 hours
Excellence of Cor bolt
Corrosion
Resistance
Same as
STS bolt
Fastenability
Easy to fasten
/ Disassemble
Price
advantage
About 80%
of STS bolt
Mechanical
property
Tensile strength, hardness, abrasion resistance
Solar structure
only
Worry about
disclosure
Possible to produce all fastening bolts
Application field
Car
Heavy industry
Plant
Hydraulic components
Solar photovoltaic
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