Tool steels are high quality steels made to controlled chemical composition and processed to develop properties useful for working and shaping of other materials.The carbon content in tool steel may range from as low as 0.1% to as high as more than 1.6%. They are alloyed with elements such as Chromium, Molybdenum,Vanadium Tungsten etc.
At Sunflag Tool Steels are produced through specially designed steel making process via Electric Arc Furnace followed by Ladle Refining and Vacuum Degassing and processed through ESR / VAR for ensuring homogeneous properties &Ultra clean material. Stringent control is practiced during designing of chemical composition and other process parameters during casting, rolling/forging and heattreatment.
Tool steels are high quality steels made to controlled chemical composition and processed to develop properties useful for working and shaping of other materials. The carbon content in tool steel may range from as low as o.2 to as high as more than 1.6% They are alloyed with elements such as Chromium, Molybdenum, Vanadium Tungsten etc.
Tungsten Hot-Work Steels
Molybdenum Hot-Work Steels
Molybdenum High-Speed Steels
Tungsten High-Speed Steels
Intermediate High – Speed Steels
Testing Facilities At Sunflag Steel
ECT For Bars
Automatic bar feeding system
Automatic marking and sorting of defective bars during testing
Size range: 6 to 60 mm
Inspection of Longitudinal / Circular Surface defects
Detectability of ECT: 0.05mm depth flaw with length 5mm I Detectability of ECT: 0.05mm depth flaw with length 5mm
Reliable and reproducible test results I Reliable and reproducible test results
High production speed
Acceptance Criteria
Minimum defect depth and length (FBH)
0.7 mm FBH from 15—60 mm dia
1.2 mm FBH above 60 dia
Minimum defect depth and length (SDH)
0.5 mm x 10 mm {from 15—120 mm dia)
0.3 mm SDH sensitivity can deduced by extrapolation depending on material SNR.
Phased Array Auto Ultrasonic Testing Salient Features
Phased Array Technology
Phased Array testing is a specialized type of ultrasonic testing that uses sophisticated multi- element array transducers and powerful instrumentation/software to steer ultrasonic beams through the test piece and map returning echoes.
No rotating movement, only electronic scanning is done:
Depth focalization for bar volume inspection (LW)
Electronic steering for bar surface inspection (SW)
Quality Highlights:
Capacity — 15 to 120 mm dia. Full bar volume inspection
Sunflag R&D Lab Is Equipped With Following State Of The Art Equipment
Scanning Electron Microscope with Energy Dispersive X—Ray Spectroscope (SEM—EDS) of Make — JOEL
Immersion Ultrasonic Testing Facility of Make — Olympus / Blue Star
Optical Microscope with Automatic Multiaxis stage Movement and Image Analysis software
Micro—hardness tester
Ferritometer
NABL Certified Testing Lab
R & D Centre Recognised DSIR Government of India
Scanning Electron
Microscope With Eds
Key Function
– Microstructure analysis – Quantitative 8L qualitative Analysis of Inclusions