Nūhou - ASTM A572 Papa 50 vs ASTM A992 Nā Papa Kila Wela i ʻōwili ʻia: Ikaika, Versatility, a me nā noi hou

I ke ao o ka ʻenekinia kūkulu hale hou a me ke kūkulu ʻana, ʻaʻole mamao loa ke koho ʻana o ke kila mai ka manaʻo wale ʻole. ʻElua o nā papa kila ʻōwili wela i kuhikuhi pinepine ʻia—Papa ASTM A572 50a meASTM A992—ua hoʻokumu iā lākou iho he mau kūlana ʻoihana no nā papahana e pono ai ke kaulike o ka ikaika, ka ductility, a me ka hilinaʻi.

ʻO Royal Steel Group Premier Mea Hana o nā Pepa a me nā Papa Kila Kiʻekiʻe

Papa kila ʻōwili wela ASTM A572 Papa 50he papa kila ikaika kiʻekiʻe, haʻahaʻa-alloy i hoʻohana nui ʻia i nā noi kūkulu, nā alahaka, a me ka hana ʻana maʻamau. ʻO kona ikaika hua he 50 ksi (345 MPa) a me ka ikaika tensile mai65–80 ksi (450–550 MPa)e hoʻolilo iā ia i koho kūpono no nā ʻenekinia e ʻimi nei i ka hana a me ka pono o ke kumukūʻai. Eia kekahi, hōʻike ʻo ASTM A572 Grade 50 i ka weldability maikaʻi loa a me ke ʻano, e ʻae ana i ka hana paʻakikī me ka ʻole o ka hoʻopilikia ʻana i ke kūpaʻa o ke kila. ʻO ka hui pū ʻana o ka ikaika, ka paʻakikī, a me ke kūpaʻa ʻana i ka corrosion e kūpono ia no nā hale hana kaumaha, me nā hale ʻoihana, nā kahua mīkini, a me nā ʻoihana halihali.

Ma ka lima ʻē aʻe,Papa kila ʻōwili wela ASTM A992ua lilo i mea makemake nui ʻia no nā ʻano kūkulu ākea, ʻoi aku hoʻi ma ʻAmelika ʻĀkau. I hoʻomohala mua ʻia e pani iā ASTM A36 i nā ʻano kūkulu, hāʻawi ʻo A992 i ka ikaika haʻahaʻa o 50 ksi (345 MPa), i hui pū ʻia me ka paʻakikī kiʻekiʻe a me ka ductility, e kūpono ana no nā hale kū i ka seismic. Loaʻa pū ke kila A992 i ka bendability i hoʻomaikaʻi ʻia a me ka weldability, e hiki ai i nā mea hana hale ke hoʻokō i nā kikoʻī hoʻolālā koʻikoʻi me ka maikaʻi. ʻO kona hoʻohana nui ʻia ʻana i nā hale kalepa, nā alahaka, a me nā ʻōnaehana ʻoihana he hōʻike ia i kāna hana maikaʻi loa i nā kūlana ukana static a me dynamic.

ʻOiai ʻo nā ʻano kila ʻelua e kaʻana like i ka ikaika hua like, ʻaʻole lākou e hoʻololi ʻia i nā noi āpau. Ua koho pinepine ʻia ʻo ASTM A572 Grade 50 no nā noi pā e pono ai ka ʻoki maʻamau, ka mīkini ʻana, a i ʻole ke kūpaʻa ʻana i ka ʻaʻahu kaumaha, ʻoiai ua hoʻonohonoho ʻia ʻo ASTM A992 no nā ʻano kūkulu e like meNā kukuna Ia meNā kukuna H, kahi e koʻikoʻi ai ke kūpaʻa ʻaoʻao kiʻekiʻe a me ka ductility ma lalo o ke kaumaha. ʻO ke koho ʻana i ke kila kūpono e pili ana i ka noʻonoʻo pono ʻana i nā koi ukana o ka papahana, nā ʻano hana, a me nā kūlana o ke kaiapuni.

Ma waho aʻe o ko lākou mau waiwai mechanical, ʻeluaNā papa kila ASTM A572 Papa 50a meNā papa kila ASTM A992Hana ʻia ma o nā kaʻina hana ʻōwili wela holomua. Hāʻawi ka ʻōwili wela i ka mānoanoa like a me ka hoʻopau ʻana o ka ʻili laumania me ka hoʻomaikaʻi ʻana i ke ʻano o ka palaoa o loko o ke kila. Hoʻohana nā hale hana hou i nā wili ʻōwili i kāohi ʻia e ka kamepiula e hōʻoia i nā ʻae ʻana o ka dimensional pololei, e hoʻohālikelike ai i kēia mau papa me ke kūkulu ʻana a me nā papahana ʻenekinia kiʻekiʻe.

Mai kahi kuanaʻike kūpono, noʻonoʻo pinepine nā ʻenekinia, nā mea hana, a me nā luna hoʻokele papahana i ka hilinaʻi a me ka loaʻa ʻana o ke kaulahao lako i ka wā e kuhikuhi ana i nā ʻano kila. Hāʻawi nā mea hoʻolako alakaʻi i kēia mau papa i nā ʻano mānoanoa, laulā, a me nā lōʻihi e hoʻokipa i nā hoʻolālā kūkulu maʻamau. Eia kekahi, hāʻawi nā mea hana he nui i nā ʻākoakoa ʻoki-i-ka nui, pre-drilled, a i ʻole welded, e hōʻemi ana i ka hana ma kahi a me ka wikiwiki ʻana i nā manawa papahana.

I ka hopena,Papa ASTM A572 50nā papa kila i ʻōwili wela ʻiaa meNā papa kila ʻōwili wela ASTM A992ke hoʻomau nei i ke kuamoʻo o ka ʻenekinia kūkulu hou. Hāʻawi kēlā me kēia i kahi hui kūikawā o ka ikaika, ka maʻalahi, a me ka hana, i hana ʻia no nā pono kūkulu a me ka hana ʻana. Inā hoʻohana ʻia i nā alahaka, nā hale kalepa, a i ʻole nā kahua ʻoihana, ʻo ke koho ʻana i ke kila kila kūpono e hōʻoiaʻiʻo ana i ka palekana, ka lōʻihi, a me ka pono kūkulu lōʻihi. I loko o kahi ʻoihana kahi e pono ai ka pololei a me ka hana, ʻo kēia mau papa kila ʻelua e mau ana nā hopena hilinaʻi no nā ʻenekinia ma ka honua holoʻokoʻa.