How is Chinese hot-rolled steel plate suitable for infrastructure projects in Central America?A complete analysis of key grades such as Q345B

ʻO ka pā kila wela: ʻO nā ʻano kumu o kahi pōhaku kihi ʻoihana
Pā kila welahana ʻia mai nā billet ma o ka ʻōwili wela wela. Hāʻawi ia i nā pōmaikaʻi nui o ka hiki ke hoʻololi i ka ikaika ākea a me ka formability ikaika, e hoʻohana nui ʻia i nā hale kūkulu hale, nā ʻenehana, nā mīkini hana a me nā ʻano ʻē aʻe.

Wahi a ka ʻikepili mai ka Latin American Steel Association, ʻo ka lawe ʻana mai o ke kila o ʻAmelika Hui Pū ʻIa he 11% o ka huina o Latin America, ʻo ka hapalua o ia mea mai Kina.

Nā mea nui i kūʻai ʻia mai Kina ma ʻAmelika Waena a me kā lākou mau noi

(I) Haʻahaʻa-alloy, kiʻekiʻe-ikaika kila: Q345B
ʻO Q345B he mea "pono e loaʻa" no nā papahana ʻoihana ʻAmelika Hui Pū ʻIa. Me ka ikaika hua o 345 MPa, hoʻohui ia i ka weldability maikaʻi loa a me ke kūpaʻa hopena. Hoʻokō ia me nā kūlana GB/T a ua hōʻoia ʻia ʻo ISO9001.

I loko o ʻelua mau papa hana hoʻonui ʻia o ka paipu wai wai ma Nicaragua, ua kūʻai ʻia ka huina o 1,471.26 tons o Q345B hot-rolled Larsen puʻu kila i ka hele hoʻokahi. Ua hoʻohana ʻia kēia mau mea no ke kūkulu ʻana i ke kahua o 87.2 mau kilomita o nā paipu hoʻoheheʻe wai, ʻelima mau pahu wai, a me hoʻokahi hale hoʻomaʻemaʻe wai. Loaʻa i ka 9m, 12m, a me 15m ka lōʻihi, kūpono lākou i ka hohonu i koi ʻia o ka papahana lalo. ʻO ka pōmaikaʻi nui o kēia mea, ʻo ia ka paʻa ʻana o ke kūkulu ʻana i ka ʻāina wela a me ka ua, ʻoiai e hāʻawi ana i ka lakio kumu kūʻai ma mua o nā huahana kūloko like.

(II) Kiekie Kiekie Carbon Structural Steel: SPHT1 a me SAE Series

SPHT1: Ma ke ʻano he kila kila ma lalo o ke kūlana JIS Kepanī, ua lilo ʻo SPHT1 i mea koho maikaʻi loa no ke kūkulu ʻana i nā ʻoihana ma Dominican Republic ma muli o kona kiʻekiʻe a me ka paʻakikī. Ua hana mua ʻo Royal Steel i 900 tons o SPHT1 hot-rolled coil no kahi mea kūʻai Dominican. Ma hope o ka koho ʻana i nā ʻāpana stamping a me ka hana hou ʻana i nā paipu, ua hoʻohana ʻia ka SPHT1 i ke kūkulu ʻana i ka pipeline kūlanakauhale. ʻO kona ikaika kaulike a me kona ʻano kūpono i kūpono no ka hoʻomoe pinepine ʻana i ka pipeline e pono ai ma Central America.

SAE 1006/1008: ʻO kēia mau mea kila wela haʻahaʻa haʻahaʻa haʻahaʻa he mau mea kumu no ka hana ʻana i nā mea hana māmā. Ua lawe aku ʻo Royal Steel Group i 14,000 tons o SAE 1008 hot-rolled coils i Palakila.

(III) Kūleʻa Kūleʻa Weliweli: A588 Gr B
ʻO A588 Gr B ke kila hoʻoheheʻe ʻia, me kāna ʻōpala hoʻōla ponoʻī, ua loaʻa i ka māhele mākeke i ka haʻahaʻa kiʻekiʻe a me nā wahi ʻino loa i loaʻa ma nā wahi o ʻAmelika Hui Pū ʻIa.
Ua lawe mai ʻo Mekiko i 3,000 tons o A588 Gr B nā pā kila wela mai kā mākou hui no ka hoʻohana ʻana i ke alahaka kahakai a me ke kūkulu ʻana i ke awa.

(IV) ʻO ka hao kalapona maʻamau: SS400 a me ASTM A36 Nā lako kumu
SS400 (maʻamau Iapana) aASTM A36(American standard) he "mea hoʻohana pono" no ka ʻoihana ʻAmelika Hui Pū ʻIa. Me nā ikaika hua o 245 MPa a me 250 MPa, kēlā me kēia, kūpono lākou no nā ʻāpana hana haʻahaʻa haʻahaʻa a me ka hana mīkini maʻamau. Kūʻai nui nā mea kūʻai aku ʻo Royal Steel Group ʻo Colombian i nā pā kila 3.0mm i hana ʻia me SS400 no nā noi anti-slip i ka lawe ʻana a me nā kahua kūkulu.

Pūʻulu kila aliʻihāʻawi i nā lawelawe "hoʻoponopono + wikiwiki", e kōkua ana i ka hoʻoponopono ʻana i nā papa hana paʻa o nā papahana ma Central America.

He 15%-20% ha'aha'a nā kumukū'ai ho'oku'u 'ia o ka pā kila wela o Kina ma mua o ko 'Eulopa a me 'Amelika Hui Pū 'Ia. ʻO ka Royal Steel Group, i hoʻokumu ʻia ma Tianjin, ke kaena nei i nā ʻupena moku mai Tianjin Port a me Shanghai Port, e hōʻea ana i nā wahi nui e like me Nicaragua a me Mexico, e hōʻemi hou ana i nā kumukūʻai kūʻai holoʻokoʻa.

Hoʻokipa maikaʻi mākou i nā nīnau a me nā hui pū ʻana mai nā hui ʻoihana, nā mea hana mīkini, a me nā hoa kālepa ma Central America a puni ka honua! Inā he oʻo, nā māka nui e like me Q345B a me SPHT1, a i ʻole nā huahana i hana ʻia e like me A588 Gr B weathering steel a me Q420B kila ikaika kiʻekiʻe, hāʻawi ʻo Royal Steel Group i nā lawelawe hoʻokahi, me ka hoʻolālā ʻenehana hoʻokahi-a-hoʻokahi, hāʻawi manuahi manuahi, a me ka nānā ʻana i ka moana holoʻokoʻa, e kōkua i kāu mau papahana e hoʻemi i ke kumu kūʻai, hoʻomaikaʻi maikaʻi ʻana, a me ka hoʻokō ʻana i ka hoʻomaikaʻi ʻana i ka manawa. Manaʻo mākou e hana pū me ʻoe e kūkulu i kahi hoʻolālā hou no ka hoʻomohala ʻana i ka ʻoihana a me ka hoʻomohala ʻana ma ʻAmelika Waena!