Largest seamless rolled steel ring (prototype)

Largest seamless rolled steel ring (prototype)
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Who
raeta Energy Equipment Co., Ltd.
What
21.029 metre(s)
Where
China (Jinan)
When
26 January 2026

The largest seamless rolled steel ring (prototype) is 21.029 meters (68 ft 12 in) and was achieved by Iraeta Energy Equipment Co., Ltd. (China) in Shanghai, China, as verified on 26 January 2026

The record holder is "Iraeta Energy Equipment Co., Ltd. (China), a manufacturing concern specializing mainly in a diversified range of products within the forgings industry.