Ua maeʻa le oka a tagata faʻatau faʻamaoni a Ecuador mo le 258 tone o papatusi uʻamea
O lePapa u'amea A572 Gr50ua fa'atonuina e le matou tagata fa'atau tuai i Ecuador ua fa'ao'oina aloaia.
Papa u'amea fa'atulagaina niobium-vanadium malosi maualuga A572Gr50
TALOSAGA
O le u'amea malosi maualuga ma maualalo le mafiafia A572Gr50 e 8-300mm e fa'aaogaina lautele i fausaga fa'ainisinia, e pei o le fausiaina o fausaga u'amea, masini faufale, masini eliina, loli, alalaupapa, va'a mamafa, ma isi mea, aemaise lava mo fa'aoga e mana'omia ai le lelei o le fa'apipi'iina ma le malosi o vaega o le faufale ma masini faufale.
Tulaga fa'atonu
Tulaga fa'atonu: ASTM A572/A572M.
Fa'amatalaga
8-300mm le mafiafia, e mafai ona faʻamautu le umi ma le lautele e faʻamautu le taʻavale.
Fa'atulagaga Fa'akemikolo
| C | Si | Mn | P | S | Nb | |
| A572Gr50 | ≤0.20 | ≤0.40 | ≤1.50 | ≤0.04 | ≤0.05 | 0.005～0.05 |
O le A572Gr50 uʻamea malosi maulalo ua faʻaaogaina lautele i le fausiaina o uʻamea, masini faufale ma isi fausaga uʻamea, ma ua auina atu i Korea i Saute, Taiwan ma isi nofoaga, ma o le aofaʻi o oloa auina atu i fafo ua oʻo atu i le silia ma le 10,000 tone.
E vaevaeina le A572GR i ni vasega e lima: 42 (290), 50 (345), 55 (380) e talafeagai mo le fa'amauina, fa'amauina po'o le fa'avevelaina o vaega faufale, 60 (415) ma le 65 (450) e fa'aaogaina mo le fa'amauina o alalaupapa ma vaega faufale ua fa'amauina pe fa'amauina vaega faufale mo isi fa'amoemoega.
Afai e te fia iloa nisi faʻamatalaga e uiga i papatusi uʻamea, faʻamolemole lagona le saoloto e faʻafesoʻotaʻi matou, o le a tuʻuina atu e le matou 'au ia te oe fofo sili ona faʻapolofesa ma sili ona talafeagai mo oe.
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Taimi na lafoina ai: Iulai-07-2023