20

12Cr1Mo

Mo te tērau i hanga rawa te kaha ki raro: kei te mea he ngakau karona o 0.1% -0.25%, ka tapiritia nga mea i whakarerea rawa, he manganese, hirikona, vanadium a, niopiuma, me titaniuma

He pūmanawa. Kei raro ki te tērau i hanga ai te karona i te pai rawa A large number of mold production companies will use it to make mold steel.

Kua tukua i roto i te mea e kore nei e mahana, e kore nei e mahana, e whakawateatia ana e ia (e whakarewaina ana, e whakarewaina ana ranei, he mahana nui ranei) Ki te mea he tukunga kia mahana, me whakatakoto i roto i te kawenata. Ki te kahore he whakatakoto, ka kiia he mahana e kore e whakatakoto te tukunga

He karbon steel pipes are generally divided into three types: low-carbon steel, medium carbon steel, and high carbon steel. Among them, 45 # steel is medium carbon steel, lower than 45 # is low carbon steel, and higher than 45 # is high carbon steel. If there are no special requirements, 20 # seamless steel pipes are generally used.

Ko nga wahi tuatahi o te whakaaturanga e whakaputa ke ana i te putanga AC i runga i te tikanga o te whakatakoto, ko te putanga tuarua, ko te putanga rino

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