Nānā nui

E hoʻoikaika mākou i kēlā me kēia kanaka e lilo i mea kūʻokoʻa a kūpono hoʻi, a e wikiwiki i kā mākou mau ala no ke kū ʻana i loko o ke kūlana o nā ʻoihana kiʻekiʻe a me nā ʻenehana kiʻekiʻe no ka A53 Gr. B Seamless / Welded Carbon Steel Pipe, Hoʻokipa mākou iā ʻoe e kipa i kā mākou hale hana a ke kakali nei i ka hoʻokumu ʻana i nā pilina ʻoihana aloha me nā mea kūʻai aku ma ka home a ma waho i ka wā e hiki mai ana. ʻO kā mākou huahana a me nā hoʻonā a pau e pili ana i nā kūlana maikaʻi o ka honua a mahalo nui ʻia i nā mākeke like ʻole a puni ka honua. Inā makemake ʻoe i kekahi o kā mākou huahana a makemake paha e kūkākūkā i kahi kauoha maʻamau, e hoʻomanaʻo e ʻoluʻolu e kelepona iā mākou. Ke kakali nei mākou i ka hoʻokumu ʻana i nā pilina ʻoihana kūleʻa me nā mea kūʻai aku hou i ka wā e hiki mai ana.

Hōʻike ʻo ASTM A53 i nā koi no ka seamless/welded black and hot-dip galvanized steel pipes no ka hoʻohana maʻamau. ʻO ke kila i helu ʻia ma ka maʻamau e pono e hana ʻia i loko o kahi umu ākea, alkaline oxygen a i ʻole umu uila, a pono e loaʻa i kēia mau koi kemika: carbon, manganese, phosphorus, sulfur, copper, nickel, chromium, molybdenum a me vanadium. Pono ka pipeline e wili ʻole ʻia. Pono e hoʻokō ʻia nā hoʻāʻo tensile, bending a flattening e hōʻoia pono e hoʻokō i nā waiwai mechanical maʻamau. E hoʻokō ʻia ka hoʻāʻo ʻana o ka hydrostatic pressure, a ʻaʻohe leaka ma o ka weld a i ʻole ke kino paipu. Pono e hana ʻia nā hoʻokolohua uila non-destructive e hōʻoia i ka nui o ka nui o ka pipeline e hoʻokō i ka maʻamau. Inā manaʻo ʻia he mea pono e hōʻoia i ka hoʻokō ʻana o ka pipeline i nā koi i ʻōlelo ʻia, aia i ka mea kūʻai aku ke kuleana e hoʻokō i nā nānā a me nā hoʻokolohua i kuhikuhi ʻia i kēia kikoʻī.
Ua kūpono ʻo ASTM A 53 no nā ʻōnaehana paipu kaomi, nā paipu no nā pipeline a me nā paipu kumu maʻamau i kahi mahana o 350 degere. Ma waena o lākou, ʻo Gr.B kila kila ka mea maʻamau i hoʻohana ʻia, me kona ikaika tensile ≥ 415 (MPa) a me ka ikaika hua ≥ 240 (MPa).

Palapala noi

Hoʻohana nui ʻia ia no nā ʻāpana ikaika a me nā ʻāpana, a no ke kumu nui o ka mahu, ka wai, ke kinoea a me nā paipu ea.

Papa Nui

GR.A, GR.B

Mea Kimia

ʻAʻole ʻoi aku ka nui o kēia mau mea ʻelima ma mua o 1.00%.

B No kēlā me kēia 0.01% ka emi ʻana o ka nui o ka carbon content, ʻae ʻia ka nui o ka manganese e hoʻonui i ka 0.06%, akā ʻaʻole hiki ke kiʻekiʻe ma mua o 1.35%.

C ʻO kēlā me kēia 0.01% ka emiʻana o ke kalapona kalapona kiʻekiʻe eʻae i ka nui o ka manganese e hoʻonui i ka 0.06%, akā,ʻaʻole pono ka nui ma mua o 1.65%.

Waiwai Mekani

A ʻO ka lōʻihi liʻiliʻi o ka lōʻihi 2in. (50mm) e hoʻoholo ʻia e kēia ʻano kumu:

e=625000(1940)A^0.2/U^0.9

e = ka lōʻihi liʻiliʻi o ka anana 2in. (50mm), ka pākēneka i hoʻopuni ʻia i ka 0.5% kokoke loa;

A = helu ʻia e like me ke anawaena o waho o ka paipu inoa a i ʻole ka laula inoa o ka hāpana tensile a me kona mānoanoa pā i kuhikuhi ʻia, a hoʻopuni ʻia i kahi kokoke loa o ka hāpana tensile o 0.01 in.2 (1 mm2), a Hoʻohālikelike ʻia me 0.75in.2 (500mm2), ʻoi aku ka liʻiliʻi.

U = ka ikaika tensile palena iki, psi (MPa).

B No nā hui like ʻole o nā nui like ʻole o nā hōʻike hoʻāʻo tensile a me ka ikaika tensile haʻahaʻa i kuhikuhi ʻia, hōʻike ʻia ka elongation haʻahaʻa i koi ʻia ma ka Papa X4.1 a i ʻole ka Papa X4.2, e like me kona kūpono.

Koi hoao

ʻO ka hoʻāʻo tensile, ka hoʻāʻo ʻana, ka hoʻāʻo hydrostatic, ka hoʻāʻo uila nondestructive o nā welds.

Hiki ke hoolako

Hiki ke hoʻolako: 2000 Tons i kēlā me kēia mahina no ka papa o ASTM A53 / A53M-2012 Steel Pipe

Hoʻopili ʻia

I loko o nā pūʻolo a i loko o ka pahu lāʻau ikaika

Hāʻawi

7-14 mau lā inā ma ka waihona, 30-45 mau lā e hana ai

Uku

30% depsoit, 70% L/C a i ʻole B/L kope a i ʻole 100% L/C i ka ʻike

Huahana Huahana

Paipu paila

GB/T 8162-2008

ASTM A519-2006

BS EN10210-1-2006

ASTM A53/A53M-2012

GB9948-2006

GB6479-2013

GB/T 17396-2009