-45℃ weld seam still has high safety
Recently, Posco and external companies have successfully developed steel pipes for hydrogen transmission, which will be used in Ansan, the first hydrogen demonstration city in South Korea.
The viscosity of the slag in the seamless steel pipe factory is too large
The viscosity of the slag in the seamless steel pipe factory is too large. The gas dissolved in the high-temperature liquid metal during welding will overflow in the form of bubbles during the cooling process
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