He aha te pai o te pereti maitai hurihuri wera Hainamana mō ngā kaupapa hanganga i Amerika Waenganui? He tātaritanga katoa o ngā momo matua pēnei i te Q345B

Ngā rauemi matua i hokona mai i Haina i Amerika Waenganui me ā rātou whakamahinga

(I) Rino iti-koranu, kaha-teitei: Q345B
He rauemi "me whai" te Q345B mō ngā kaupapa hanganga o Amerika Waenganui. Me te kaha whakaputa o te 345 MPa, ka whakakotahi i te kaha whakarewa me te ātete pānga. E tutuki ana i ngā paerewa GB/T, ā, kua whai tiwhikete ISO9001.

I roto i ngā kaupapa whakawhānui paipa parakaingaki nui e rua i Nicaragua, i hokona katoatia he 1,471.26 tana o ngā puranga rino Larsen Q345B i hurihia werahia i te wā kotahi. I whakamahia ēnei mō te hanganga turanga o ngā paipa parakaingaki 87.2 kiromita te roa, e rima ngā teihana papu, me te kotahi te tipu maimoatanga parakaingaki. E wātea ana i roto i ngā roa 9m, 12m, me te 15m, ā, i tino rite ki te hohonu e hiahiatia ana mō te kaupapa raro whenua. Ko te painga matua o tēnei rauemi ko tōna pumau hanganga i roto i ngā āhuarangi pārūrū, ua, me te tuku i te ōwehenga utu-mahi e nui ake ana i ngā hua ā-rohe rite.

(II) Te maitai hanganga waro kounga teitei: SPHT1 me te raupapa SAE

SPHT1: Hei maitai tā i raro i te paerewa JIS Hapanihi, kua riro te SPHT1 hei whiringa pai mō te hanganga hanganga i te Dominican Republic nā tōna ngāwari me tōna pakari. I mua, i whakaritea e Royal Steel te 900 tana o te koiri SPHT1 wera mō tētahi kiritaki Dominican. Whai muri i te arotau i ngā tawhā tā me te tukatuka atu ki ngā paipa, i whakamahia te SPHT1 i roto i te hanganga paipa tāone. Nā tōna kaha taurite me tōna āhua hanga i pai ai mō ngā hiahia whakatakoto paipa auau i Amerika Waenganui.

SAE 1006/1008: Ko ēnei maitai waro-iti e rua he rauemi matua mō te hanga i ngā wāhanga hanganga mama. I kaweake e te Royal Steel Group i mua he 14,000 tana o ngā koiri SAE 1008 ki Brazil.

(III) Te Hanganga Rino Āhuarangi: A588 Gr B
Kua riro i te maitai ā-huarere A588 Gr B, me tōna paparanga waikura e whakaora ana i a ia anō, te wāhi mākete i roto i ngā taiao haumākū nui me te waikura nui e kitea ana i ētahi wāhanga o Amerika Waenganui.
I kawemai a Mehiko i mua e 3,000 tana o ngā pereti maitai hurihuri wera A588 Gr B mai i tā mātou kamupene hei whakamahi i roto i te hanganga piriti takutai moana me te tauranga.

(IV) Maitai Waro Whānui: SS400 me ASTM A36 Ngā Taonga Taketake
SS400 (paerewa Hapanihi) meASTM A36(paerewa Amerikana) he "taonga whakapau nui" mō te ahumahi o Amerika Waenganui. Me te kaha hua o te 245 MPa me te 250 MPa, ia, he pai mō ngā wāhanga hanganga iti-kawenga me te hanga mīhini whānui. Ko ngā kiritaki o Royal Steel Group i Colombia e hoko ana i ngā pereti maitai tauira 3.0mm i hangaia ki te SS400 mō ngā tono ārai-paheke i roto i ngā papa kawe waka me te hanga.