The earliest process to manufacture Cold Rolled Grain Oriented Electrical Steel, popularly known as CRGO, was first patented 70 years ago in 1933 in USA. The earliest grades of CRGO were known as M10, (approx. 1.00 watts/lb. at 1.5T/60Hz) and M9 (approx.0.90 watts/lb. at 1.5T/60Hz).

By 1947, the first catalog containing design curves and other essential information on grain oriented steels was published.

In 1955, grades M7 (approx.0.7w/lb at 1.5T/60Hz) and M6 (approx.0.6w/lb at 1.5T/60Hz) were developed and were the most widely used grades of CRGO.

However, the first Conventional Grain Oriented Steel (CGOS) grades known popularly today as M3, M4 and M5 were developed in the late sixties and the Hi-B Grain Oriented Steel grades (HG-OS) were developed in the early seventies whilst laser scribed material in the mid-eighties.

ARMCO, USA, (now known as A.K. Steel) were the pioneers in the development of CGOS grades whilst the Japanese mills Nippon Steel and Kawasaki Steel, the pioneers in the development of HGO grades and laser scribed grades.

In the development of Grain Oriented Steels over the past 70 years, not only have the hystereses losses been significantly reduced from the earliest grades of GO developed, but the thickness has been significantly reduced, thereby reducing the eddy current losses. The insulation coating has been significantly improved to keep interlaminar losses at a minimum.

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About KRYFS

KRYFS is India’s leading Transformer Core manufacturing company with a capacity to convert 50,000 MT per annum of CRGO Electrical Steel into transformer laminations and cores. Today, KRYFS services the entire value chain of energy supply from generation (of Solar Power), Transmission (through its EPC business) to distribution (through manufacture of transformers, cores, and fabrication) and employs over 750 people, all over India. KRYFS has nine manufacturing facilities for manufacturing of distribution and medium power transformers up to 10 MVA, 33 KV class, laminations, transformer cores, transformer tanks and lifting slings. Three units are located at Kherdi, in the Union Territory of Dadra and Nagar Haveli, one unit at Palghar, Maharashtra , three units in Vadodara and one in Bhopal.

 

About KRYFS

KRYFS is India’s leading Transformer Core manufacturing company with a capacity to convert 50,000 MT per annum of CRGO Electrical Steel into transformer laminations and cores.

Today, KRYFS services the entire value chain of energy supply from generation (of Solar Power), Transmission (through its EPC business) to distribution (through the manufacture of transformers, cores, and fabrication) and employs over 750 people, all over India.

KRYFS has nine manufacturing facilities for manufacturing of distribution and medium power transformers up to 10 MVA, 33 KV class, laminations, transformer cores, transformer tanks, and lifting slings. Four units are located at Kherdi, Union Territory of Dadra and Nagar Haveli, one unit at Palghar, Maharashtra, three units in Savli, Gujarat, and one in Bhopal, Madhya Pradesh.

We got 25 Years old in 2017.

About KRYFS

KRYFS is India’s leading Transformer Core manufacturing company with a capacity to convert 50,000 MT per annum of CRGO Electrical Steel into transformer laminations and cores.

Today, KRYFS services the entire value chain of energy supply from generation (of Solar Power), Transmission (through its EPC business) to distribution (through the manufacture of transformers, cores, and fabrication) and employs over 750 people, all over India.

KRYFS has nine manufacturing facilities for manufacturing of distribution and medium power transformers up to 10 MVA, 33 KV class, laminations, transformer cores, transformer tanks, and lifting slings. Four units are located at Kherdi, Union Territory of Dadra and Nagar Haveli, one unit at Palghar, Maharashtra, three units in Savli, Gujarat, and one in Bhopal, Madhya Pradesh.

We got 25 Years old in 2017.

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