verified // QUALITY ASSURANCE

Tested at Every Stage,
Not Just at the End

In-house chemical, macro, micro, hardness and tensile testing — backed by preventative maintenance and calibrated equipment — ensures every coil meets specification before it leaves our facility.

// COMMITMENT

Quality Built Into the Process

Quality of the product is ensured at every stage of the process, supported by in-house control measures:

  • check_circlePreventative maintenance of annealing furnaces, the nitrogen plant, and all production machines for consistent process capability.
  • check_circleCalibration of all measuring and testing equipment against National Standards, carried out periodically.
  • check_circleAnnealing cycle graph printouts studied even though all heat treatment cycles are automation-controlled.
Hardness testing in the 4BH quality lab
// IN-HOUSE LAB

Testing Equipment

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Chemical Test Lab

Per-coil carbon composition testing to confirm grade before processing begins.

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Macro Examination

Acid-etch surface defect checks — pitmarks, seams, cracks, ribs and rust.

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Micro Examination

Microscope inspection for decarburization depth, inclusion rating and carbide structure.

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Hardness Testing

BHN hardness testing on every annealed and drawn coil.

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Universal Testing Machine

Tensile strength verification against specification for every batch.

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Nitrogen & Oxygen Analyzer

Online-measuring imported oxygen analyzer on our ammonia-cracking nitrogen plant, holding below 5 ppm oxygen.

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ISO 9001:2015 Certified Unit

Quality management system certification covering our manufacturing process.

GSTIN: 29AACFZ6248F1ZT Udyam: UDYAM-KR-04-0007753 IEC: AACFZ6248F