Kwicandelo leepayipi zentsimbi yekhabhoni, i-ASTM A500 Grade C kunyeI-ASTM A106 Ibanga Cyimigangatho emibini yezinto ezisetyenziswa rhoqo. Nangona zombini ziyintsimbi yekhabhoni kwaye zabelana ngendlela "yeBanga C", zahlukile ngokupheleleyo kwifilosofi yoyilo, iinkqubo zokuvelisa, kunye neemeko zokusetyenziswa. Eli nqaku libonelela ngothelekiso oluneenkcukacha oluvela kwiimilinganiselo ezahlukeneyo, kubandakanya iinkcazo ezisemgangathweni, ukwakheka kweekhemikhali, iipropati zoomatshini, iinkcukacha zobukhulu, kunye neendawo ezifanelekileyo.

1. Inkcazo eQhelekileyo kunye nezicelo eziphambili

I-ASTM A500 - isihloko esipheleleyoIngcaciso esemgangathweni yeetyhubhu zesinyithi sekhabhoni esenziwe ngentsimbi ebandayo kunye nengenamthungo kwiirowudi kunye neemiloNjengoko igama lisitsho, lo ngumgangatho wemibhobho yesakhiwo, osebenza kwiityhubhu zesakhiwo zentsimbi yekhabhoni ezidityanisiweyo nezingenamthungo ezijikelezileyo, ezisikwere, ezizinxantathu, nezinemilo ekhethekileyo. Isetyenziswa kakhulu ekwakheni izakhelo, iibhulorho, kunye nezinye izakhiwo zokudibanisa ezidityanisiweyo, ezirivethiweyo, okanye ezibolithiweyo. I-ASTM A500 igubungela iiklasi A, B, C, kunye no-D, kwaye iBakala C lolona didi lunamandla asetyenziswa rhoqo.

I-ASTM A106 - isihloko esipheleleyoInkcazelo Esemgangathweni yePipe yeNtsimbi yeKhabhoni engenamthungo yeNkonzo yoBushushu obuPhezuluLo ngumgangatho wombhobho woxinzelelo lobushushu obuphezulu, osebenza kuphela kwimibhobho yentsimbi yekhabhoni engenamthungo, eyenzelwe ngokukodwa ukuhambisa umphunga, ulwelo, kunye nezinye izinto phantsi kweemeko zobushushu obuphezulu kunye noxinzelelo oluphezulu. I-ASTM A106 igubungela amabakala A, B, kunye no-C, kwaye iBakala C lolona nqanaba liphezulu lamandla.

Umahluko oyintloko wesivakalisi esinye: I-A500 Ibanga C yityhubhu yokwakha ethwala umthwalo; I-A106 Ibanga C yipayipi yoxinzelelo yokuhambisa ulwelo.

2. Inkqubo yoMveliso kunye neeFomu zeMveliso

Le migangatho mibini yahlukile kakhulu kwindlela yokuvelisa kunye neemilo ezikhoyo:

Amandla e-A500 okugubungela iindawo ezisikwere, ezixande, kunye nezinye iindawo ezingezizo ezijikelezileyo abonisa ngokuthe ngqo ububanzi bayo – “kwiiRounds and Shapes” – into i-A106 engenayo.

3. Uluhlu Lwemilinganiselo

I-ASTM A500 Grade C: Isebenza kwiityhubhu ezinomda ongadluli kwi-2235 mm (88 in.) kunye nobukhulu bodonga obungadluli kwi-25.4 mm (1 in.). Ubungakanani beetyhubhu zesikwere eziqhelekileyo bunokufikelela kwi-22 in. × 22 in. Ukunyamezelana kobukhulu bodonga: ubukhulu bodonga obulinganiselweyo abuyi kuba ngaphantsi kwe-90% yobukhulu bodonga obuchaziweyo.

I-ASTM A106 Ibanga C: Isebenza kwiipayipi ezingenamthungo ezinobukhulu beepayipi eziqhelekileyo ze-NPS ⅛ ukuya kwi-NPS 48 (DN 6 ukuya kwi-DN 1200), ezinobukhulu beedonga ngokwe-ASME B36.10M (iishedyuli ukusuka kwi-10 ukuya kwi-160, XXH, njl.njl.). Ukunyamezela ubukhulu beedonga: ubukhulu beedonga obulinganiselweyo abuyi kuba ngaphantsi kwe-87.5% yobukhulu beedonga obuchaziweyo.

4. Uthelekiso loBume beeKhemikhali

Umahluko kwimilo yeekhemikhali ubonisa iimfuno ezahlukeneyo zokusebenza. I-A106 Grade C ifuna i-silicon (Si ≥ 0.10%) ukuphucula ukumelana nobushushu kunye nokumelana ne-oxidation, ngelixa i-A500 Grade C ingenamfuneko ye-silicon. I-A106 ikwabeka imida engqongqo kwimingcipheko enobungozi efana ne-phosphorus kunye ne-sulfur ukuqinisekisa ukuthembeka phantsi kwenkonzo yobushushu obuphezulu kunye noxinzelelo oluphezulu.

Okuphawulekayo kukuba, umxholo wekhabhoni we-A500 Grade C (0.27%) uphantsi kunowe-A106 Grade C (0.35%), nto leyo enika i-A500 Grade C ukuwelda ngcono kwaye inciphisa umngcipheko wokuqhekeka ngexesha lokuwelda.

5. Uthelekiso lweePropati zoMatshini

Iithagethi zamandla zahlukile: I-A500 Grade C inamandla aphezulu okuvelisa, nto leyo eyenza ifaneleke ngakumbi ukumelana nokuguquguquka okungapheliyo kumalungu olwakhiwo, ngelixa i-A106 Grade C inamandla aphezulu okuthwala, nto leyo ebonisa amandla ayo okumelana noxinzelelo lwangaphakathi kunye nokuthintela ukungaphumeleli kokuqhuma.

I-A106 Grade C inika ukuguquguquka okungcono, okwenza ukuba ifaneleke ukugoba, ukujika, kunye neminye imisebenzi yokwenza imibhobho. I-A500 Grade C, kwelinye icala, ifumana amandla ayo aphezulu ngokuqinisa umsebenzi ngexesha lokwenza okubandayo.

6. Iikhowudi zoBume obuSebenzayo kunye neeNjineli

Le migangatho mibini isetyenziswa kwiindawo ezahlukeneyo kwaye ilandela iikhowudi zoyilo ezahlukeneyo:

7. Izikhokelo zoKhetho

Ekukhetheni izinto zobunjineli ezisebenzayo, le migaqo ilandelayo ingasetyenziswa:

1. Ukuma kuqala: Ukuba umzobo ufuna ityhubhu yesikwere, uxande, okanye enemilo ekhethekileyo, khetha i-ASTM A500 Grade C – A106 ayizivelisi ezi milo konke konke.
2. Kwiityhubhu ezijikelezileyo, cinga ngokusetyenziswa: Ukuba yikholamu yesakhiwo, i-diagonal brace, okanye ilungu le-truss eliphantsi kwemithwalo yomoya, imithwalo efileyo, okanye eminye imikhosi yangaphandle → khetha i-ASTM A500 Grade C. Ukuba sisixhobo sokudibanisa umbhobho wenkqubo, esihambisa umphunga okanye ulwelo lwe-hydrocarbon phantsi koxinzelelo lwangaphakathi oluphezulu kunye nobushushu obuphezulu → khetha i-ASTM A106 Grade C.
3. Ubushushu: Kwizinto zokwakha ezikwiqondo lobushushu eliphakathi, khetha i-A500 Grade C; kwiinkqubo zemibhobho eziya kusebenza ngokuqhubekayo kumaqondo obushushu aphezulu (≥350°C), khetha i-A106 Grade C.

Ngamafutshane: xa uthwala umthwalo wesakhiwo, sebenzisa i-A500 Grade C; xa uthutha ulwelo olushushu kakhulu, sebenzisa i-A106 Grade C. Ezi zimbini azinakutshintshwa kubunjineli.