Haʻahaʻa alloy kiʻekiʻe kiʻekiʻe paipu / Seamless kila no ka structural kumu

Haʻahaʻa kalapona kila paipu-carbon maʻiʻo mea e pili ana i emi ma mua o 0.25%.ʻO nā paipu hao kalapona i nā huahana aila, ka aila a me ke kinoea a me ka lehulehu media me ka hoʻolālā hoʻolālā haʻahaʻa ma mua o 10MPa-carbon ma waena o 0.25 a me 0.60%, e like me 35, 45 kila, etc.;ʻOi aku ka nui o nā paipu kila kalapona kiʻekiʻe ma mua o 0.60%.ʻAʻole hoʻohana ʻia kēia ʻano kila i ka hana ʻana i nā paipu kila.ʻO ka paipu kila kalapona-introduction ʻO ka paipu kila carbon kekahi nui o ke kalapona, a me ke silicon a me ka manganese.ʻAʻole loaʻa nā mea hoʻohuihui ʻē aʻe.E hoʻomanaʻo ʻaʻole ʻoi aku ka nui o ka ʻike silika ma mua o 0.40%.I mea e hōʻoia ai i ka hana kemika a me nā waiwai mechanical o nā paipu kila kalapona, pono mākou e kāohi i ka ʻike o nā mea haumia e like me ka sulfur a me ka phosphorus ma lalo o 0.035%.Ma kēia ala wale nō e hana ʻia ai nā paipu kila kalapona kiʻekiʻe.