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Understanding High Strength Steel Plate Processing

Steel is an extremely important material, used in construction and engineering industries all over the world. From the cars on the roads to the refrigerators in our houses, from the buildings we stay and work in to medical tools in hospitals, steel is visible in some form virtually everywhere. It is ubiquitous and indispensable. One of the common forms in which steel is used is plates.

Usage Of Steel Metal Plates

Steel metal plates, specifically, are also used in lots of modern technologies and constructions. For example, in making protection of cars from small caliber bullets, an imposition of a steel sheet of hardness 600 HB is used. In the printing office, a printing technology is not possible without the use of a steel metal sheet of 0.5mm thickness. Steel plates are also used in designing and manufacturing transformers. In this article, we attempt to explain what high-strength steel plate processing is.

High Strength Steel Plate Processing

Hot rolled steel can be cut into plates into 4mm thin sheets using plasma beam cutting. High tensile steel is highly brittle in nature due to high content of more than 45% silicon in it. That’s why it is very necessary to use plasma cutting to cut high tensile steel otherwise we can get uneven or wire edges which is definitely a bad quality of cutting output. Therefore, such steel costs less than cold-rolled steel. Hot rolled steel plate is heat treated only once after rolling and due to its low physical and chemical properties, it is usually not used for manufacturing enameled products. This happens because the crystals in the crystalline grid are arranged in random order leading to high diffusion of hydrogen and it also has a small filling factor. It’s very important to keep in mind that the cooling rate depends on the diameter. It is directly proportional to it. The greater the thickness of the steel, the more time it takes to cool down. Generally, the properties of hot-rolled steel are not as good as that of cold-rolled steel. It has higher chances of developing cracks and is gradually being used less and less in the process of production.

At Sunflag Steel, we provide the best quality steel services for our customers with enhanced capabilities. For all your steel needs, do contact us.

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ECT For Bars

Acceptance Criteria

Minimum defect depth and length (FBH)

  • 0.7 mm FBH from 15—60 mm dia
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Minimum defect depth and length (SDH)

  • 0.5 mm x 10 mm {from 15—120 mm dia)
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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

  • Failure Analysis
  • Fractography
  • Inclusion with quantitative elemental analysis

Salient Features

Dimension of samples that can be tested :

– Round Bars :

  • Size 15-120 mm die.
  • Length 800mm
  • Round Corner Square Bars:
  • Size 60420 mm

UST Prob: 10 MHz — 6mm As Per Sep 1927