Kua oti te tono a ngā kiritaki pono o Ecuador mō ngā pereti maitai e 258 tana
TeNgā pereti maitai A572 Gr50kua tukuna mana ngā mea i tonoa e tā mātou kiritaki tawhito i Ecuador.
Pereti maitai hanganga niobium-vanadium kaha-teitei A572Gr50
TONO
Ko te pereti maitai hanganga kaha-teitei A572Gr50 he 8-300mm te matotoru, e whakamahia whānuitia ana i roto i ngā hanganga hangarau, pērā i te hanga hanganga maitai, ngā mīhini hanga, ngā mīhini keri, ngā taraka, ngā piriti, ngā oko pēhanga, me ētahi atu, inā koa mō ngā tono e hiahia ana kia pai te whakarewa me te pakari o ngā wāhanga hanga me ngā mīhini hanga.
Paerewa Whakahaere
Paerewa whakahaere: ASTM A572/A572M.
Whakatakotoranga
8-300mm te matotoru, ka taea te whakarite i te roa me te whānui me te hurihuri pumau.
Te Hanganga Matū
| C | Si | Mn | P | S | Nb | |
| A572Gr50 | ≤0.20 | ≤0.40 | ≤1.50 | ≤0.04 | ≤0.05 | 0.005～0.05 |
Kua whānuitia te whakamahinga o te pereti maitai hanganga kaha-teitei A572Gr50 i roto i ngā hanganga maitai hanga, ngā mīhini hanga me ētahi atu hanganga maitai, ā, kua kaweake ki Kōrea ki te Tonga, Taiwana me ētahi atu wāhi, ā, kua eke te rahinga kaweake katoa ki te neke atu i te 10,000 tana.
E rima ngā momo o te A572GR: 42 (290), 50 (345), 55 (380) e pai ana mō te whakapūmau, te whakapūmau, te whakarewa rānei i ngā wāhanga hanganga, 60 (415) me te 65 (450) e whakamahia ana mō te whakapūmau piriti, ā, ko ngā wāhanga hanganga kua whakapūmautia, ngā wāhanga hanganga kua whakarewaina rānei mō ētahi atu kaupapa.
Mena kei te hiahia koe ki te mōhio atu mō ngā pereti maitai, tēnā whakapā mai ki a mātou, mā tā mātou tīma koe e whakarato ki ngā otinga ngaio me te tino tika mōu.
Whakapā mai ki a mātou:
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Wā tuku: Hōngongoi-07-2023