Ma ke kahua o nā paipu kila kalapona, ASTM A500 Grade C a mePapa C o ASTM A106ʻelua mau kūlana mea i ʻōlelo pinepine ʻia. ʻOiai ʻo nā mea ʻelua he kila kalapona a kaʻana like i ka inoa "Pae C", he ʻokoʻa loa lākou i ke akeakamai hoʻolālā, nā kaʻina hana hana, a me nā hiʻohiʻona noi. Hāʻawi kēia ʻatikala i kahi hoʻohālikelike kikoʻī mai nā ana he nui, me nā wehewehe maʻamau, ka haku mele kemika, nā waiwai mechanical, nā kikoʻī ana, a me nā wahi pili.

1. Ka Wehewehena Maʻamau a me nā Hoʻohana Mua

ASTM A500 - inoa pihaNā Kikoʻī Kūlana no nā Paipu Kūkulu Kila Kalapona i Hoʻopaʻa Anu ʻia a me ka Seamless i nā Pōʻai a me nā ʻAnoE like me ka inoa e hōʻike nei, he kūlana paipu kūkulu kēia, e pili ana i nā paipu kūkulu poepoe, huinahā, ʻehā huinahā, a me ke ʻano kūikawā kila kalapona i hoʻopaʻa ʻia a wili ʻia. Hoʻohana nui ʻia ia i nā mōlina kūkulu, nā alahaka, a me nā hale ʻē aʻe no nā pilina wili ʻia, rivet, a i ʻole bolted. Uhi ʻo ASTM A500 i nā papa A, B, C, a me D, me ka Papa C ʻo ia ka papa ikaika kiʻekiʻe loa i hoʻohana pinepine ʻia.

ASTM A106 - inoa pihaKikoʻī Kūlana no ka Paipu Kila Kalapona Seamless no ka Hana Wela KiʻekiʻeHe kūlana paipu kaomi wela kiʻekiʻe kēia, pili wale nō i nā paipu kila kalapona humuhumu ʻole, i hoʻolālā kūikawā ʻia no ka lawe ʻana i ka mahu, nā wai, a me nā mea ʻē aʻe ma lalo o nā kūlana wela kiʻekiʻe a me ke kaomi kiʻekiʻe. Uhi ʻo ASTM A106 i nā māka A, B, a me C, me ka Māka C ʻo ia ka māka ikaika kiʻekiʻe loa.

ʻOkoʻa koʻikoʻi hoʻokahi ʻōlelo: ʻO ka A500 Papa C kahi paipu kūkulu e halihali ana i ka ukana; ʻO ka A106 Papa C kahi paipu kaomi no ka lawe ʻana i ka wai.

2. Ke Kaʻina Hana a me nā ʻAno Huahana

ʻOkoʻa loa nā kūlana ʻelua i ke ʻano hana a me nā ʻano i loaʻa:

ʻO ka hiki iā A500 ke uhi i nā ʻāpana huinahā, ʻehā huinahā, a me nā ʻāpana poepoe ʻole ʻē aʻe he hōʻike pololei ia o kona laulā - "ma nā Pōʻai a me nā ʻAno" - ʻaʻole i loaʻa iā A106.

3. Ka laulā Ana

ASTM A500 Papa C: Pili i nā paipu me kahi periphery ʻaʻole i ʻoi aku ma mua o 2235 mm (88 ʻīniha) a ʻaʻole i ʻoi aku ka mānoanoa o ka paia ma mua o 25.4 mm (1 ʻīniha). Hiki i nā nui paipu huinahā maʻamau ke hiki i 22 ʻīniha × 22 ʻīniha. Ka hoʻomanawanui ʻana i ka mānoanoa o ka paia: ʻaʻole e emi ka mānoanoa o ka paia i ana ʻia ma mua o 90% o ka mānoanoa o ka paia i kuhikuhi ʻia.

ASTM A106 Papa C: Pili i nā paipu humuhumu ʻole me nā nui paipu maʻamau NPS ⅛ a hiki i NPS 48 (DN 6 a hiki i DN 1200), me nā mānoanoa o ka paia e like me ASME B36.10M (nā papa kuhikuhi 10 a hiki i 160, XXH, a pēlā aku). Ka hoʻomanawanui ʻana i ka mānoanoa o ka paia: ʻaʻole e emi ka mānoanoa o ka paia i ana ʻia ma mua o 87.5% o ka mānoanoa o ka paia i kuhikuhi ʻia.

4. Hoʻohālikelike ʻana i ka Hoʻohui Kemika

Hōʻike nā ʻokoʻa o ke ʻano kemika i nā koi hana like ʻole. Pono ʻo A106 Papa C i ka silicon (Si ≥ 0.10%) e hoʻomaikaʻi i ke kūpaʻa wela a me ke kūpaʻa oxidation, ʻoiai ʻaʻohe koi silicon o A500 Papa C. Hoʻokau pū ʻo A106 i nā palena paʻa i nā mea haumia ʻino e like me ka phosphorus a me ka sulfur e hōʻoia i ka hilinaʻi ma lalo o ka lawelawe wela kiʻekiʻe a me ke kaomi kiʻekiʻe.

ʻO ka mea nui, ʻoi aku ka haʻahaʻa o ka nui o ke kalapona o A500 Grade C (0.27%) ma mua o ko A106 Grade C (0.35%), ka mea e hāʻawi ai i ka A500 Grade C i ka hiki ke hoʻopili maikaʻi ʻia a hoʻemi i ka pilikia o ka nahā ʻana i ka wā o ka hoʻopili ʻana.

5. Hoʻohālikelike ʻana i nā ʻano mīkini

ʻOkoʻa nā pahuhopu ikaika: ʻoi aku ka ikaika o ka A500 Grade C, e ʻoi aku ka maikaʻi no ke kūʻē ʻana i ka deformation mau loa i nā lālā kūkulu, ʻoiai ʻoi aku ka ikaika tensile o ka A106 Grade C, e hōʻike ana i kona hiki ke kū i ke kaomi kūloko a pale i nā hāʻule ʻana o ka pahū.

Hāʻawi ʻo A106 Papa C i ka ductility ʻoi aku ka maikaʻi, e kūpono ai no ke kulou ʻana, ka flanging, a me nā hana hana paipu ʻē aʻe. Ma ka ʻaoʻao ʻē aʻe, loaʻa iā A500 Papa C kona ikaika kiʻekiʻe ma o ka paʻakikī ʻana i ka wā o ke hana anu ʻana.

6. Nā Kaiapuni Pili a me nā Kānāwai ʻenekinia

Hoʻohana ʻia nā kūlana ʻelua ma nā wahi like ʻole a hahai i nā code hoʻolālā like ʻole:

7. Nā Alakaʻi Koho

I ke koho ʻana i nā mea hana no ka ʻenekinia, hiki ke hoʻopili ʻia nā loina aʻe:

1. ʻAno mua: Inā makemake ke kiʻi i nā paipu huinaha, huinahā, a i ʻole ke ʻano kūikawā, koho iā ASTM A500 Papa C - ʻaʻole hana iki ʻo A106 i kēia mau ʻano.
2. No nā paipu poepoe, e noʻonoʻo i ka hoʻohana ʻana: Inā he kolamu kūkulu, kākoʻo diagonal, a i ʻole lālā truss i kau ʻia i nā ukana makani, nā ukana make, a i ʻole nā ​​​​mana waho ʻē aʻe → koho ASTM A500 Papa C. Inā he paipu hana e hoʻohui ana i nā lako, e lawe ana i ka mahu a i ʻole nā ​​​​wai hydrocarbon ma lalo o ke kaomi kūloko kiʻekiʻe a me ka mahana → koho ASTM A106 Papa C.
3. Mahana: No nā ʻāpana kūkulu mahana ambient, koho i ka A500 Papa C; no nā ʻōnaehana paipu e hana mau ana i nā mahana kiʻekiʻe (≥350°C), koho i ka A106 Papa C.

I ka pōkole: no ka halihali ukana kūkulu, e hoʻohana i ka Papa C A500; no ka lawe ʻana o ke wai wela kiʻekiʻe, e hoʻohana i ka Papa C A106. ʻAʻole hiki ke hoʻololi ʻia nā mea ʻelua i ka ʻenekinia.