He aha ka ʻokoʻa ma waena o Q235 a me SS400?

ʻO Q235 lāua ʻo SS400 ʻelua mau kila hoʻonohonoho kalapona i hoʻohana nui ʻia i manaʻo pinepine ʻia he like ka hana, akā ua puka mai lākou mai nā kūlana aupuni like ʻole a he ʻokoʻa iki ko lākou ʻano kemika a me nā waiwai mechanical. Ua wehewehe ʻia ʻo Q235 ma lalo o ke kūlana GB/T 700 o Kina, ʻoiai ʻo SS400 e hāʻule ana ma lalo o ke kūlana JIS G3101 o Iapana. ʻOiai ko lākou kumu like ʻole, hoʻohana pinepine ʻia lākou i nā noi hoʻonohonoho like e like me nā alahaka, nā hale, a me nā ʻāpana mīkini.

Ma ke ʻano kemika, ʻo Q235 a me SS400 he mau kila kalapona haʻahaʻa, i haku ʻia me ka hao me nā liʻiliʻi o ke kalapona, manganese, phosphorus, a me ka sulfur. ʻO ka Q235 ka nui o ke kalapona he 0.22%, a ʻo nā palena ma nā mea ʻē aʻe he paʻa loa ia e hōʻoia i ka hiki ke hoʻopili ʻia a me ka ductility. Loaʻa iā SS400 kahi ʻano like akā ʻae i ka maʻalahi iki i kekahi mau mea ma muli o ke kaʻina hana. He liʻiliʻi kēia mau ʻokoʻa, akā i kekahi mau noi—ʻoi aku hoʻi nā mea e pili ana i nā koi hoʻopili pololei a i ʻole ka palapala hōʻoia mea honua—hiki ke pili.

Ma ke ʻano mīkini, ua kapa ʻia ʻo Q235 ma muli o kona ikaika hua o 235 MPa, ʻoiai ʻo SS400 e hāʻawi ana i kahi ikaika hua like ma kahi o 245 MPa. Hāʻule pū ko lākou ikaika tensile i kahi pae like, ma waena o 375 a 500 MPa. ʻO ka hopena, hiki i nā kila ʻelua ke hana pono i nā noi kūkulu a hoʻohana pinepine ʻia me ke ʻano like ʻole ke ʻae ʻia nā kūlana kūloko. Eia nō naʻe, he mea nui e hoʻomaopopo ʻia e ʻae mau ʻia nā pani mea e nā ʻenekinia kūkulu a i ʻole nā ​​​​luna hoʻolālā, ʻoi aku hoʻi i nā papahana i hoʻoponopono ʻia a palekana paha.

Ma ke ʻano o ka hoʻohana ʻana, ʻoi aku ka nui o ka loaʻa ʻana o Q235 ma ka mākeke kūloko o Kina a ua koho pinepine ʻia no ke kūkulu ʻana me ke kumukūʻai kūpono a me ka hana ʻana maʻamau. ʻO SS400, he kūlana Kepanī, ua hoʻohana nui ʻia ma Iapana a me nā wahi ʻē aʻe o ʻAsia. Ke komo ka kālepa honua, hiki ke hilinaʻi ʻia ke koho ma waena o Q235 a me SS400 i ka loaʻa ʻana o ke kaulahao lako, nā koi hōʻoia, a me nā makemake o ka mea kūʻai aku. I ka hopena, ʻoiai ua like ʻo Q235 a me SS400 ma nā ʻano he nui, ʻo ka ʻike ʻana i ko lākou ʻokoʻa liʻiliʻi e hōʻoia i ka hoʻoholo maikaʻi ʻana i ke koho ʻana i nā mea.