ASTM A501 Icyiciro Bni umuyoboro w'icyuma cya karuboni ushyushye kandi udafite umugozi, ufite imbaraga nkeya zo gukurura za 448 MPa (65,000 psi) mu bikorwa bitandukanye by'inyubako.
ASTM A501igenewe gukora no gukoresha imiyoboro y'icyuma cya karuboni ishyushye kandi idafite umugozi kugira ngo ikoreshwe mu nyubako.
Iyi miyoboro y'icyuma ishobora kuba umukara (itarapfutswe) cyangwa ishyushye cyane, iyi ya nyuma ikaba yariyongereyeho ubudahangarwa bw'ingese binyuze mu nzira yo gushyiramo amashanyarazi, bigatuma ikwiriye ahantu henshi hatandukanye mu bidukikije.
Iyi miyoboro y'icyuma ikoreshwa cyane mu biraro, inyubako, n'ibindi bikorwa byinshi by'inyubako rusange.
ASTM A501 ishyira imiyoboro y'icyuma mu byiciro bitatu,urwego rwa A, urwego rwa B, n'urwego rwa C.
Icyiciro cya B ni cyo gikoreshwa cyane muri ibyo byiciro bitatu kuko gitanga imiterere iboneye mu bikorwa byinshi by’inyubako.
Icyuma kigomba gukorwa nauburyo bwo gukora icyuma cy'ibanze cya ogisijeni cyangwa amashanyarazi.
Icyuma gishobora gucurwa mu byuma bito cyangwa gishobora kuba icyuma gikozwe mu migozi.
Iyo ibyuma by’ubwoko butandukanye bikozwe mu buryo bukurikiranye, umuhanga mu by’icyuma agomba kumenya ibikoresho bisimburana hanyuma akabikuraho akoresheje uburyo bwashyizweho butandukanya neza imiterere y’ubwoko.
Umuyoboro w'amazi ugomba gukorwa hakoreshejwe imwe muri izi nzira zikurikira:umugozi; gusudira mu itanura (gusudira mu buryo buhoraho); gusudira mu buryo burwanya amashanyarazi (ERW) cyangwa gusudira mu buryo bunyura munsi y'amazi (SAW)hagakurikiraho kongera gushyushya mu gice cyose no gukora ubushyuhe hakoreshejwe uburyo bwo kugabanya cyangwa guhindura imiterere, cyangwa byombi.
Uburyo bwo gusudira bwa SAW bugabanyijemo ibice bibiriLSAW(SAWL) na SSAW (HSAW).
Ishusho ya nyuma igomba gukorwa hakoreshejwe uburyo bushyushye bwo kuyirema.
Bizemerewe kongeramo uburyo bwo kuvura ubushyuhe busanzwe ku miyoboro ifite ubugari bw'urukuta burenga mm 13 [1/2 inches].
| Ibisabwa mu bya ASTM A501 Grade B Chemical,% | |||
| Imiterere | Icyiciro cya B | ||
| Isesengura ry'ubushyuhe | Isesengura ry'ibicuruzwa | ||
| C (Karuboni)B | umubare ntarengwa | 0.22 | 0.26 |
| Mn (Manganese)B | umubare ntarengwa | 1.40 | 1.45 |
| P (Fosforu) | umubare ntarengwa | 0.030 | 0.040 |
| S (Sulfure) | umubare ntarengwa | 0.020 | 0.030 |
| Cu (Umuringa)B (iyo icyuma cy'umuringa cyagenwe) | umunota | 0.20 | 0.18 |
| BKuri buri kugabanuka kwa 0.01 ku ijana munsi y’ingano ntarengwa yagenwe ya karuboni, kwiyongera kwa 0.06 ku ijana hejuru y’ingano ntarengwa yagenwe ya manganese byemewe, kugeza ku ntarengwa ya 1.60% hakoreshejwe isesengura ry’ubushyuhe na 1.65% hakoreshejwe isesengura ry’ibicuruzwa. | |||
Isesengura ry'ibicuruzwa rigomba gukorwa hakoreshejwe ingero z'ibizamini byafashwe mu burebure bubiri bw'imiyoboro yavuye kuri buri gice cy'uburebure bwa 500, cyangwa igice cyabyo, cyangwa ibice bibiri by'umushongi ugororotse uvuye kuri buri gice cy'umushongi ugororotse uhwanye.
Ingero z'ibipimo byo gukurura zigomba kubahiriza ibisabwa n'uburyo bwo gupima n'ibisobanuro A370, Umugereka A2.
| Ibisabwa ku gukurura ASTM A501 Grade B | |||
| Urutonde | Ubunini bw'urukuta mm [muri] | Icyiciro cya B | |
| Imbaraga zo gukurura, min, psi[MPa] | Byose | 65000 [448] | |
| Imbaraga z'umusaruro, min, psi[MPa] | ≤25 [1] | 46.000 [315] | |
| ＞25 [1] na ≤ 50 [2] | 45.000 [310] | ||
| ＞50 [2] na ≤ 76 [3] | 42.500 [290] | ||
| ＞76 [3] na ≤ 100 [4] | 40.000 [280] | ||
| Kurekura, ubuto, % | — | 24 | |
| Ingufu z'Ingaruka | umunota,impuzandengo, ft/Ibf [J] | — | 20 [27] |
| umunota,ingaragu, ft/Ibf [J] | — | 14 [19] | |
Ingero z'ibizamini by'ubukana zigomba kuba ingero z'ibizamini by'uburebure cyangwa ingero z'ibizamini by'uburebure.
Ku bijyanye n'imiyoboro ishongeshejwe, ingero zose z'ibizamini bya longitudinal strip test zigomba gufatirwa ahantu nibura 90° uvuye aho basudira kandi zigategurwa nta kugorora uburebure bwazo.
Ikizamini cy'umurongo w'uburebureIngero z'ibipimo zigomba gukurwaho uduce twose tw'ibimera.
Ingero z'ibizamini by'umuvuduko ntizigomba kuba zirimo inenge zo hejuru zishobora kubangamira uburyo bwo kumenya neza imiterere y'umuvuduko.
Ubunini bw'urukuta ≤ 6.3mm [0.25in] ntibusaba gupimwa ingaruka.
| Ubushobozi bwo kwihanganira ibintu mu buryo bwa ASTM A501 | ||
| Urutonde | urwego | Icyitonderwa |
| Ingano y'inyuma (OD) | ≤48mm (inchi 1.9) | ± 0.5mm [1/48 in] |
| ＞mm 50 (inchi 2) | ± 1% | |
| Ubunini bw'urukuta (T) | Ubunini bw'urukuta bwagenwe | ≥90% |
| Uburemere | uburemere bwagenwe | 96.5%-110% |
| Uburebure (L) | ≤7m (futi 22) | -6mm (1/4in) - +13mm (1/2in) |
| 7-14m (22-44 ft) | -6mm (1/4in) - +19mm (3/4) | |
| Kugororoka | Uburebure buri mu bice by'ubwami (ft) | L/40 |
| Ibipimo by'uburebure ni metric (m) | L/50 | |
Imiyoboro y'ibyuma igomba kuba idafite inenge kandi ifite irangi ryiza rituruka ku buryo bwo gukora imiyoboro ishyushye.
Iyo ubujyakuzimu bw'ibitagenda neza ku buso bw'umuyoboro burenze 10% by'ubugari bw'urukuta, ibi bitagenda neza bifatwa nk'ibidahuye n'imiterere yabyo. Gusana hakoreshejwe gusudira byemerwa gusa iyo byemejwe hagati y'umuguzi n'uwabikoze. Mbere yo gusana hakoreshejwe gusudira, ibitagenda neza bigomba gukurwaho burundu hakoreshejwe uburyo bwo gukata cyangwa gusya.
Kugira ngo imiyoboro y’inyubako ibe ishyushye cyane, iyi mvange igomba kubahiriza ibisabwa mu bisobanuroASTM A53.
Uburebure bwose bw'imiyoboro y'inyubako bugomba kugaragazwa n'uburyo bukwiye, nko kuzingurura, gusiga, gusiga irangi, cyangwa gusiga irangi.
Ikimenyetso cya ASTM A501 kigomba kuba gifite nibura amakuru akurikira:
Izina ry'uwakoze
Ikirango cyangwa ikirango cy'ubucuruzi
Ingano
Izina ry'ihame (umwaka wo gutangaza ntabwo ari ngombwa)
Icyiciro
Ku miyoboro y’ibyuma ifite ubugari bwa <50 mm [inchi 2] OD, byemewe gushyira ikimenyetso ku makuru y’icyuma ku kirango gifatanye na buri gapfunyika.
Icyuma cya ASTM A501 Grade B gihuza imbaraga n'ubushobozi bwo gukora ibintu bishyushye, bigatuma kiba cyiza mu buryo butandukanye bwo gukora ibintu.
Inyubako n'ubwubatsi: Ubusanzwe ikoreshwa mu nyubako no mu bwubatsi aho ibikoresho bikomeye kandi bikomeye bikenewe cyane. Ibi birimo inyubako, sitade z'imikino, ibiraro, n'izindi nyubako.
Ibikoresho by'inganda: Bitewe n'uko ifite imbaraga nyinshi, ikwiriye gukoreshwa mu nganda nko mu nganda no mu bubiko aho imiterere y'inyubako ari ingenzi cyane.
Ibikorwa remezo by'ubwikorezi: iyi grade ikoreshwa mu gukora ibikorwa remezo by'ubwikorezi, harimo sitasiyo za gari ya moshi, ibibuga by'indege, n'inzira zo kunyuramo imihanda minini.
Ibice by'imiterere: Ikoreshwa kandi mu gukora ibice by'inyubako nk'inkingi, imirimbo, n'imitako, bigize imiterere y'inyubako zitandukanye.
Inganda z'ibikoresho: Mu gukora ibikoresho biremereye n'imashini, ishobora gukoreshwa ku bice bisaba ibice bikomeye by'imiterere.
Uruganda rugomba guha umuguzi icyemezo cyerekana ko ibicuruzwa byapimwe, byapimwe, kandi byagenzuwe hakurikijwe ibi bisobanuro n'ibindi bisabwa byavuzwe mu itegeko ryo kugura cyangwa amasezerano kandi ko ibyo bisabwa byose byujujwe. Icyemezo cyerekana ko byujuje ibisabwa kigomba kuba kirimo inomero n'umwaka byatanzweho.
Botop Steel ni uruganda rukora imiyoboro ya karuboni ikoze mu byuma byo mu bwoko bwa Welded Steel Steel rukomoka mu Bushinwa, rukaba runacuruza imiyoboro y'ibyuma bidafite umugozi.
Botop Steel ifite umuhigo ukomeye ku bwiza kandi ishyira mu bikorwa igenzura n'igerageza rikomeye kuribizeza ko ibicuruzwa byizewe. Itsinda ryayo ry'inararibonye ritanga ibisubizo byihariye n'ubufasha bw'abahanga, hibandwa ku kunyurwa kw'abakiriya. Twishimiye gukorana nawe.
