API 5L X42, wanda kuma aka sani da L290, nau'in bututun layi ne da ake amfani da shi a masana'antar mai da iskar gas.
Kayayyakin kayan aiki sune aƘarfin yawan amfanin ƙasa na 42,100 psi(290 MPa) da kuma amafi ƙarancin ƙarfi na 60,200 psi(415 MPa).Yana da daraja ɗaya sama da API 5L Grade B kuma ya dace da aikace-aikacen matsakaicin ƙarfi.
X42 yawanci ana kera shi a cikin Seamless, SSAW, LSAW, da ERW.Ana samun sutura da ƙarewa don biyan takamaiman buƙatun aikace-aikacen.
Yanayin Bayarwa
Dangane da yanayin bayarwa da matakin PSL, ana iya rarraba shi kamar haka:
PSL1: X42 ko L290;
PSL2: X42R, X42N, X42Q, X42M ko L290R, L290N, L290Q, L290M;
Haruffa na suffix na PSL2 kowanne yana wakiltar maganin zafi daban-daban.
R: Mirgine;
N: daidaitawa;
Q: Ƙarshe da fushi;
M: Thermo- inji magani.
Tsarin Masana'antu
X42 yana ba da izinin tsarin masana'antu masu zuwa:
Idan ka ga waɗannan gajarta suna da wahalar fahimta, duba tarin labaran mu akanna kowa abbreviations ga karfe bututu.
Botop Karfe na iya samar muku da kewayon girman bututu kamar yadda aka nuna a teburin da ke ƙasa.
Rage Kayanmu
Standard: API 5L (ISO 3183);
PSL1: X42 ko L290;
PSL2: X42R, X42N, X42Q, X42M ko L290R, L290N, L290Q, L290M;
welded karfe bututu:LSAW(SAW), SAWHSAW), DSAW, ERW;
Bututun ƙarfe mara sumul:SMLS;
Jadawalin bututu: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 da SCH160.
Shaidawa: STD (Standard), XS (Ƙarfin Ƙarfi), XXS (Ƙarfin Ƙarfi Biyu);
Rubutun: Paint, varnish,3 LPE, FBE, 3LPP, HDPE, galvanized, epoxy tutiya-arziƙi, ciminti nauyi, da dai sauransu.
Shiryawa: Tufafi mai hana ruwa, akwati katako, bel na karfe ko bundling na karfe, filastik ko madaidaicin bututun ƙarfe, da dai sauransu na musamman.
Abubuwan da suka dace: Lanƙwasawa,flanges, kayan aikin bututu, da sauran abubuwan da suka dace suna samuwa.
API 5L X42 Haɗin Sinadaran
Haɗin Kemikal don PSL 1 Bututu tare da t ≤ 25.0 mm (0.984 in.)
Haɗin Kemikal don PSL 2 Bututu tare da t ≤ 25.0 mm (0.984 in.)
Don samfuran bututun ƙarfe na PSL2 an bincika tare da aCarbon abun ciki na ≤0.12%, carbon daidai CEpcmza a iya lissafta ta amfani da dabara mai zuwa:
CEpcm= C + Si/30 + Mn/20 + Cu/20 + Ni/60 + Cr/20 + Mo/15 + V/15 + 5B
Don samfuran bututun ƙarfe na PSL2 an bincika tare da aabun ciki na carbon> 0.12%, carbon daidai CElwza a iya lissafta ta amfani da dabarar da ke ƙasa:
CElw= C + Mn/6 + (Cr + Mo + V)/5 + (Ni +Cu)/15
Haɗin sinadarai tare da t ： 25.0 mm (0.984 in.)
Ana iya yin shawarwari akan wannan ta hanyar komawa zuwa abubuwan sinadaran da ke sama.
API 5L X42 Kayayyakin Injini
Tensile Properties
Gwajin gwaji shine mabuɗin gwaji don kayan aikin injiniya na bututun ƙarfe, wanda ke iya auna ƙarfin amfanin ƙasa, ƙarfin ƙarfi, da haɓaka mahimman sigogi.
Ƙarfin amfanin gona na X42 shine 42,100 psi ko 290 MPa.
Ƙarfin juzu'i na X42 shine 60,200 psi ko 415 MPa.
PSL1 X42 Tensile Properties
PSL2 X42 Tensile Properties
Lura: Abubuwan da ake buƙata suna daki-daki a cikin sashin kayan aikin injiniya naAPI 5L X52, wanda za a iya dubawa ta danna kan blue font idan kuna sha'awar.
Sauran Gwajin Injini
Lanƙwasa Gwajin
Gwajin Lalacewa
Gwajin lanƙwasawa
Gwajin Tasirin CVN don PSL 2 Pipe
Gwajin DWT don PSL 2 Welded Pipe
Tabbas, ba dukkanin bututu ba ne ake buƙatar gwadawa don cikakken saiti na kayan aikin injiniya, amma an zaɓi gwaje-gwaje bisa ga nau'in bututu.Ana iya samun takamaiman buƙatu a cikin Tables 17 da 18 na ma'aunin API 5L.
Hakanan kuna iya tuntuɓar mu don wannan bayanin.
Gwajin Hydrostatic
Lokacin Gwaji
Duk masu girma dabam na bututun ƙarfe marasa ƙarfi da welded tare da D ≤ 457 mm (18 in.):lokacin gwaji ≥ 5s;
Welded karfe bututu D> 457 mm (18 in.):lokacin gwaji ≥ 10s.
Yawan Gwaji
Kowane karfe bututukuma ba za a sami ɗigogi daga jikin walda ko bututu yayin gwajin ba.
Gwajin gwaji
Matsin gwajin hydrostatic P na abututun ƙarfe na ƙarsheza a iya lissafta ta amfani da dabara.
P = 2St/D
Sshine damuwa na hoop.ƙimar ta yi daidai da ƙayyadadden ƙayyadadden ƙarfin yawan amfanin ƙasa na bututun ƙarfe xa kashi, a MPa (psi);
tshine ƙayyadadden kauri na bango, wanda aka bayyana a cikin millimeters (inci);
Dshine ƙayyadadden diamita na waje, wanda aka bayyana a cikin millimeters (inci).
Binciken mara lalacewa
Don tubes SAW, Hanyoyi biyu,UT(gwajin ultrasonic) koRT(gwajin rediyo), yawanci ana amfani da su.
ET(gwajin lantarki) baya amfani da bututun SAW.
Welded seams a kan welded bututu na maki ≥ L210 / A da diamita ≥ 60.3 mm (2.375 in) za a nondestructively duba ga cikakken kauri da tsawon (100%) kamar yadda kayyade.
Jarabawar UT mara lalacewa
RT gwajin mara lalacewa
Dukkanin bututun da ba su da kyau na PSL 2, da bututun da aka kashe da kuma masu zafi na PSL1 Grade B, za a yi musu gwajin cikakken tsayi (100%) mara lalacewa.
Ana iya amfani da ɗaya ko haɗin ET (Gwajin Lantarki), UT (Gwajin Ultrasonic), da MT (Gwajin Magnetic Particle) don NDT.
Hakuri Mai Girma
Abubuwan buƙatun API 5L don juriyar juzu'i an yi dalla-dalla a cikiAPI 5L Daraja B.Don guje wa maimaitawa, zaku iya danna kan shuɗin rubutun don duba cikakkun bayanai masu dacewa.
Jadawalin Jadawalin Bututu API 5L
Don sauƙin dubawa da amfani, mun tsara fayilolin PDF masu dacewa.Kuna iya koyaushe zazzagewa da duba waɗannan takaddun idan an buƙata.
Bugu da kari, API 5L yana ƙayyadadden ƙayyadadden ƙayyadaddun diamita na waje da ƙayyadadden kauri na bango.
Hakuri Mai Girma
Abubuwan buƙatun API 5L don juriyar juzu'i an yi dalla-dalla a cikiAPI 5L Daraja B.Don guje wa maimaitawa, zaku iya danna kan shuɗin rubutun don duba cikakkun bayanai masu dacewa.
Kayayyakinmu masu alaƙa
Tun lokacin da aka kafa shi a cikin 2014.Botop Karfeya zama babban mai samar da bututun ƙarfe na carbon a Arewacin kasar Sin, wanda aka sani don kyakkyawan sabis, samfurori masu inganci, da cikakkun mafita.
Kamfanin yana ba da nau'ikan bututun ƙarfe na carbon da samfuran da ke da alaƙa, waɗanda suka haɗa da marasa ƙarfi, ERW, LSAW, da bututun ƙarfe na SSAW, da kuma cikakken jeri na kayan aikin bututu da flanges.Kayayyakinsa na musamman sun haɗa da gawa mai daraja da austenitic bakin karafa, waɗanda aka keɓance don biyan buƙatun ayyukan bututun.
