Kūʻai kūʻai nui ʻo Kina Carbon Steel Seamless Pipe Nace API 5L X52 X60 X65 X70 Psl2 Oil Pipeline Gas Pipe
Nānā nui
Me ko makou uhane opono hooponopono,ʻO ka hui like ʻana, nā pōmaikaʻi a me ka holomua, e kūkulu mākou i ka wā e hiki mai ana me kāu hui hanohano no Discount wholesale China Carbon Steel Seamless Pipe Nace API 5L X52 X60 X65 X70 Psl2 Oil Pipeline Gas Pipe, Hoʻolaʻa ʻia kā mākou hui i ka hoʻolako ʻana i nā mea kūʻai aku me ka kiʻekiʻe a ʻO nā huahana kiʻekiʻe kiʻekiʻe ma ke kumu kūʻai koʻikoʻi, e hauʻoli ana kēlā me kēia mea kūʻai aku i kā mākou lawelawe a me nā huahana. Loaʻa iā mākou i kēia manawa he hui kūʻai kūʻai kūʻokoʻa, a me nā lālā he nui, e mālama ana i kā mākou mea kūʻai nui. Ke ʻimi nei mākou i nā hui ʻoihana lōʻihi, a e hōʻoia i kā mākou mea hoʻolako e pōmaikaʻi maoli lākou i ka wā pōkole a me ka lōʻihi.
Pono kekahi ʻano hana paʻakikī i ka hiki ke anti acid (Ua koi ʻia ka paipu i ka pale ʻana i ka waika i ka wā e hiki ai ke kaomi ʻāpana o ka hydrogen sulfide i 300Pa). Ma kēia hoʻopuni, aia kahi koi kūikawā i ka maʻi kalapona, ka sulfur maʻiʻo, ka phosphorus a me ka ʻike kīnā, koi iā HIC (hydrogen hoʻokomo ʻia māhā) a me SSC (Sulfide stress cracking).
Hōʻike HIC: Ua hoʻokomo ʻia ka specimen, 100+/-1mm ka lōʻihi a me 20+/-1mm ākea, i ʻelua mau hoʻonā hoʻāʻo maʻamau: Solution A (sodium chloride and acetic acid solution i hoʻopiha ʻia me ka hydrogen sulphide ma ka lumi wela a me ke kaomi) a me ka Solution B (Ka wai kai synthetic i hoʻopiha ʻia me ka hydrogen sulphide ma ka lumi wela a me ke kaomi) no nā hola 96. Aia ʻekolu mau hōʻike hōʻike: CSR≤2%, ka māwae lōʻihi lākiō CLR≤15%, a me ka māwae mānoanoa lākiō CTR≤5%.
Hōʻike SSC:
ʻEhā kiko piko ʻano laʻana laʻana 115mm*15mm*5mm
ʻEhā mau ala e hana ai i kēia:
A: NACE ho'āʻo tensile maʻamau: ʻoi aku ka nui o ke koʻikoʻi hiki ʻole i loko o 720 mau hola
B: ʻO ka hoʻāʻo kulou maʻamau ʻo NACE: ke koʻikoʻi hiki ʻole ke hāʻule i loko o 720 mau hola
C: NACE maʻamau C apo hoʻāʻo: ʻoi aku ka nui o ke koʻikoʻi hiki ʻole i loko o 720 mau hola
D: NACE maʻamau pālua cantilever beam (DSB) ho'āʻo: KISSC maʻamau (SSC threshold stress coefficient) o ka hōʻike hōʻike hou no ka hoʻāʻo kūpono
Palapala noi
Hoʻohana ʻia ka pipeline no ka lawe ʻana i ka aila, ka mahu a me ka wai i huki ʻia mai ka ʻāina a i nā ʻoihana ʻoihana aila a me ke kinoea ma o ka pipeline.
Papa Nui
Papa no API 5L laina paipu kila: Gr.B X42 X52 X60 X65 X70
Mea Kimia
| Papa kila (inoa hao) | ʻO ka hapa nui, e pili ana i ka wela a me nā kānana huahanaa,g% | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| max b | max b | min | max | max | max | max | max | |
| Paipu Seamless | ||||||||
| L175 a i ʻole A25 | 0.21 | 0.60 | — | 0.030 | 0.030 | — | — | — |
| L175P a i ʻole A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | — | — | — |
| L210 a i ʻole A | 0.22 | 0.90 | — | 0.030 | 0.030 | — | — | — |
| L245 a i ʻole B | 0.28 | 1.20 | — | 0.030 | 0.030 | c,d | c,d | d |
| L290 a i ʻole X42 | 0.28 | 1.30 | — | 0.030 | 0.030 | d | d | d |
| L320 a i ʻole X46 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L360 a i ʻole X52 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L390 a i ʻole X56 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L415 a i ʻole X60 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L450 a i ʻole X65 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L485 a i ʻole X70 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| Paipu Weled | ||||||||
| L175 a i ʻole A25 | 0.21 | 0.60 | — | 0.030 | 0.030 | — | — | — |
| L175P a i ʻole A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | — | — | — |
| L210 a i ʻole A | 0.22 | 0.90 | — | 0.030 | 0.030 | — | — | — |
| L245 a i ʻole B | 0.26 | 1.20 | — | 0.030 | 0.030 | c,d | c,d | d |
| L290 a i ʻole X42 | 0.26 | 1.30 | — | 0.030 | 0.030 | d | d | d |
| L320 a i ʻole X46 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L360 a i ʻole X52 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L390 a i ʻole X56 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L415 a i ʻole X60 | 0.26 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L450 a i ʻole X65 | 0.26 e | 1.45 e | — | 0.030 | 0.030 | f | f | f |
| L485 a i ʻole X70 | 0.26 e | 1.65 e | — | 0.030 | 0.030 | f | f | f |
| a Cu ≤ 0.50 %; Ni ≤ 0.50 %; Cr ≤ 0.50 % a me Mo ≤ 0.15 %. b No kēlā me kēia hoʻemi ʻana o 0.01 % ma lalo o ka manaʻo kiʻekiʻe i ʻōlelo ʻia no ke kalapona, hiki ke hoʻonui ʻia he 0.05 % ma luna o ka ʻike nui loa no Mn, a hiki i ka 1.65 % kiʻekiʻe no nā māka ≥ L245 a i ʻole B, akā ≤ L360 a i ʻole X52; a hiki i ka 1.75 % kiʻekiʻe no nā māka > L360 a i ʻole X52, akā < L485 a i ʻole X70; a hiki i ka 2.00 % kiʻekiʻe no ka Papa L485 a i ʻole X70. c Inā ʻaʻole i ʻae ʻia, Nb + V ≤ 0.06 %. d Nb + V + Ti ≤ 0.15 %. e Inā ʻaʻole i ʻae ʻia. f Inā ʻaʻole i ʻae ʻia, Nb + V + Ti ≤ 0.15 %. g ʻAʻole ʻae ʻia ka hoʻohui ʻana o B a me ke koena B ≤ 0.001 %. | ||||||||
Waiwai Mekani
| Papa Paipu | Kino Paipu o ka Paipu Holoʻole a Weled | Weld Seam o EW, LW, SAW, a me BIPIPaipu | ||
| Ka ikaika huaa Rt0.5 | Ikaika U'ia Rm | ʻO ka lōʻihi(ma ka 50 mm a i ʻole 2 in.)Af | Ikaika U'ib Rm | |
| MPa (psi) | MPa (psi) | % | MPa (psi) | |
| min | min | min | min | |
| L175 a i ʻole A25 | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L175P a i ʻole A25P | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L210 a i ʻole A | 210 (30,500) | 335 (48,600) | c | 335 (48,600) |
| L245 a i ʻole B | 245 (35,500) | 415 (60,200) | c | 415 (60,200) |
| L290 a i ʻole X42 | 290 (42,100) | 415 (60,200) | c | 415 (60,200) |
| L320 a i ʻole X46 | 320 (46,400) | 435 (63,100) | c | 435 (63,100) |
| L360 a i ʻole X52 | 360 (52,200) | 460 (66,700) | c | 460 (66,700) |
| L390 a i ʻole X56 | 390 (56,600) | 490 (71,100) | c | 490 (71,100) |
| L415 a i ʻole X60 | 415 (60,200) | 520 (75,400) | c | 520 (75,400) |
| L450 a i ʻole X65 | 450 (65,300) | 535 (77,600) | c | 535 (77,600) |
| L485 a i ʻole X70 | 485 (70,300) | 570 (82,700) | c | 570 (82,700) |
| No nā papa waena, ʻo ka ʻokoʻa ma waena o ka ikaika uʻi haʻahaʻa haʻahaʻa i ʻōlelo ʻia a me ka ikaika hoʻohua liʻiliʻi i ʻōlelo ʻia no ke kino paipu e like me ka hāʻawi ʻia ma ka papa no ka papa kiʻekiʻe aʻe. e like ka waiwai me ka mea i hoʻoholo ʻia no ke kino paipu me ka hoʻohana ʻana i ka footnote a).Af, i hōʻike ʻia ma ka pākēneka a hoʻopuni ʻia i ka pākēneka kokoke loa, e like me ka hoʻoholo ʻana me ka hoʻohana ʻana i ka hoohalike penei: i hea C ʻo 1940 no ka helu ʻana me ka hoʻohana ʻana i nā ʻāpana SI a me 625,000 no ka helu ʻana me nā ʻāpana USC; AʻO xc ka ʻāpana hoʻāʻo tensile kūpono, i hōʻike ʻia ma nā millimeters huinaha (inches square), penei: 1) no nā ʻāpana hoʻāʻo pōʻai kea, 130 mm2 (0.20 in.2) no 12.7 mm (0.500 in.) a me 8.9 mm (0.350 in.) nā ʻāpana hōʻike anawaena; 65 mm2 (0.10 in.2) no 6.4 mm (0.250 in.) anawaena mau apana hoao; 2) no nā ʻāpana hoʻāʻo piha, ʻo ka liʻiliʻi o a) 485 mm2 (0.75 in.2) a me b) ka ʻāpana cross-sectional o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ke anawaena o waho a me ka mānoanoa pā o ka paipu, hoʻopuni ʻia i ka 10 mm2 kokoke loa (0.01 in.2); 3) no nā ʻāpana hoʻāʻo ʻāwī, ʻoi aku ka liʻiliʻi o a) 485 mm2 (0.75 in.2) a me b) ka ʻāpana keʻa o ka ʻāpana hoʻāʻo, i loaʻa me ka hoʻohana ʻana i ka laulā kikoʻī o ka ʻāpana hoʻāʻo a me ka mānoanoa pā o ka paipu. , hoʻopuni ʻia i ka 10 mm2 kokoke loa (0.01 in.2); U ʻo ia ka ikaika tensile haʻahaʻa i ʻōlelo ʻia, i hōʻike ʻia ma nā megapascals (paona no ka ʻīniha square). | ||||
ʻO ke anawaena o waho, mai ka poepoe a me ka mānoanoa o ka paia
| Hōʻike ʻia ma waho anawaena D (i) | Ka hoʻomanawanui anawaena, ʻīniha d | ʻO ka hoʻomanawanui i waho o ka puni | ||||
| Paipu koe ka hopena a | Hopena paipu a,b,c | Paipu koe ka Hope a | Hoʻopau Paipu a,b,c | |||
| Paipu SMLS | Paipu Weled | Paipu SMLS | Paipu Weled | |||
| < 2.375 | -0.031 a i + 0.016 | – 0.031 a i + 0.016 | 0.048 | 0.036 | ||
| ≥2.375 i ka 6.625 | 0.020D no | 0.015D no | ||||
| +/- 0.0075D | – 0.016 a i + 0.063 | D/t≤75 | D/t≤75 | |||
| Ma ka aelike no | Ma ka aelike no | |||||
| >6.625 i ka 24.000 | +/- 0.0075D | +/- 0.0075D, akā ka nui o 0.125 | +/- 0.005D, akā ka nui o 0.063 | 0.020D | 0.015D | |
| >24 a hiki i 56 | +/- 0.01D | +/- 0.005D akā ka nui o 0.160 | +/- 0.079 | +/- 0.063 | 0.015D no ka nui o 0.060 | 0.01D no ka nui o 0.500 |
| No ka mea | No ka mea | |||||
| D/t≤75 | D/t≤75 | |||||
| Ma ka ʻaelike | Ma ka ʻaelike | |||||
| no ka mea | no ka mea | |||||
| D/t≤75 | D/t≤75 | |||||
| >56 | E like me ka ʻae ʻana | |||||
| a. ʻO ka hopena o ka paipu he 4 ka lōʻihi o ka ʻai ʻana i kēlā me kēia o nā ʻāpana paipu | ||||||
| b. No ka paipu SMLS e pili ana ka hoʻomanawanui no t≤0.984in a ʻo nā ʻae no ka paipu mānoanoa e like me ka ʻaelike. | ||||||
| c. No ka paipu ho'onui me D≥8.625in a no ka paipu ho'onui 'ole, hiki ke ho'oholo 'ia ke anawaena a me ka ho'omanawanui o waho me ka ho'ohana 'ana i ke anawaena o loko i helu 'ia a i 'ole 'ia ke anawaena o loko ma mua o ka OD i kuhikuhi 'ia. | ||||||
| d. No ka hoʻoholo ʻana i ka mālama ʻana i ke anawaena, ua wehewehe ʻia ke anawaena paipu e like me ke anapuni o ka paipu i kēlā me kēia mokulele pōʻai i puʻunaue ʻia e Pi. | ||||||
| Mānoanoa pā | Hoʻomanawanui a |
| t iniha | iniha |
| Paipu SMLS b | |
| ≤ 0.157 | -1.2 |
| > 0.157 a i < 0.948 | + 0.150t / – 0.125t |
| ≥ 0.984 | + 0.146 a i ʻole + 0.1t, ʻoi aku ka nui |
| - 0.120 a i ʻole - 0.1t, ʻoi aku ka nui | |
| Paipu huila c,d | |
| ≤ 0.197 | +/- 0.020 |
| > 0.197 a i < 0.591 | +/- 0.1t |
| ≥ 0.591 | +/- 0.060 |
| a. Inā ʻoi aku ka liʻiliʻi o ka mānoanoa o ka pā ma mua o ke kumu kūʻai i hāʻawi ʻia ma kēia pākaukau, e hoʻonui ʻia ka ʻae ʻana no ka mānoanoa o ka pā e ka nui e mālama ai i ka laulā kūpono. | |
| b. No ka paipu me D≥ 14.000 i loko a me t≥0.984in, hiki ke ʻoi aku ka mānoanoa o ka pā ma ka ʻāina ma mua o ka hoʻohui ʻana no ka mānoanoa o ka pā me ka 0.05t hou aʻe inā ʻaʻole i ʻoi aku ka nui o ka hoʻomanawanui ʻana no ka nuipa. | |
| c. ʻAʻole pili ka ʻae ʻana no ka mānoanoa o ka pā i ka wahi weld | |
| d. E ʻike i ka kikoʻī API5L piha no nā kikoʻī piha | |
Hoʻomanawanui
Koi hoao
Hōʻike hydrostatic
Paipu e kū i kahi hoʻāʻo hydrostatic me ka ʻole o ka leaka ma o ka weld seam a i ʻole ke kino paipu. ʻAʻole pono e hoʻāʻo ʻia nā hui hui hydrostatic hāʻawi i nā ʻāpana paipu i hoʻohana pono ʻia.
Hoʻo piʻo
ʻAʻole e puka mai nā māwae ma kekahi ʻāpana o ka ʻāpana hoʻāʻo a ʻaʻole e wehe ʻia ka weld.
Ho'āʻo palahalaha
ʻO nā pae hoʻoholo no ka hoʻāʻo palahalaha:
- Paipu EW D<12.750 in:
- X60 me T 500in. ʻAʻole e wehe ʻia ka weld ma mua o ka emi ʻana o ka mamao ma waena o nā papa ma lalo o 66% o ke anawaena o waho. No nā papa a me nā paia, 50%.
- No ka paipu me ka D/t > 10, ʻaʻole e wehe ʻia ka weld ma mua o ka emi ʻana o ka mamao ma waena o nā papa ma lalo o 30% o ke anawaena o waho.
- No nā nui ʻē aʻe e nānā i ka kikoʻī API 5L piha.
ʻO ka hōʻike hopena CVN no PSL2
Pono ka nui o nā paipu PSL2 a me nā māka i ka CVN. E hoʻāʻo ʻia ka paipu seamless ma ke kino. E ho'āʻo ʻia ka paipu welded i ke kino, ka weld paipu a me ka ʻāpana wela. E nānā i ka kikoʻī API 5L piha no ka pakuhi o nā nui a me nā māka a me nā waiwai ikehu e pono ai.
