Feem ntau hais lus, API 5L yog hais txog API 5L kab yeeb nkab, uas yog tawm hauv av cov roj, roj, dej, thauj los ntawm cov raj xa mus rau cov kav dej thiab cov tuam txhab kev lag luam roj.

Raws li cov txheej txheem tsim khoom thiab lub raj tawg siv cov duab sib txawv, api 5l tuaj yeem muab faib ua api 5l seamless steel yeeb nkab thiab api welded steel yeeb nkab, ntawm kev siv ntau ntawm welded steel yeeb nkab yog ntau tshaj seamless steel yeeb nkab.

Kab yeeb nkab qib thiab cov khoom siv tshuaj lom neeg

API 5L tuaj yeem muab faib ua API 5L PSL 1 thiab API 5L PSL 2, suav nrog API 5L PSL 1 qib thiab cov qeb yog: A, B, x42, x46, x52, x56, x60, x65, x70, API 5L PSL 2 qib thiab qeb yog B, x42, x46, x52, x56, x60, x65, xx70, x80.qib siab dua qhov muaj zog mechanical zog.

Daim ntawv thov: siv rau kev lag luam roj thiab roj, roj, dej, roj tsheb thauj mus los.

API 5L PSL 1 Tshuaj muaj pes tsawg leeg thiab txhua yam khoom

Steel qib C(max) Mn(max) P(max) S(max) Tensile zog Yield zog

B 0.28 1.20 0.030 0.030 414 241

X42 0.28 1.30 0.030 0.030 414 290

X46 0.28 1.40 0.030 0.030 434 317

X52 0.28 1.40 0.030 0.030 455 359

X56 0.28 1.40 0.030 0.030 490 386

X60 0.28 1.40 0.030 0.030 517 414

X65 0.28 1.40 0.030 0.030 531 448

X70 0.28 1.40 0.030 0.030 565 483

API 5L PSL 2 Tshuaj muaj pes tsawg leeg thiab txhua yam khoom

Steel qib C(max) Mn(max) P(max) S(max) Tensile zog Yield zog

B 0.24 1.20 0.025 0.015 414-758 241-758

X42 0.24 1.30 0.025 0.015 414-758 290-758

X46 0.24 1.40 0.025 0.015 434-758 317-758

X52 0.24 1.40 0.025 0.015 455-758 359-758

X56 0.24 1.40 0.025 0.015 490-758 386-758

X60 0.24 1.40 0.025 0.015 517-758 414-758

X65 0.24 1.40 0.025 0.015 531-758 448-758

X70 0.24 1.40 0.025 0.015 565-758 483-758

API SPEC 5L Kab Yeeb

API SPEC 5L kab yeeb nkab txheej txheem tsim tau muab faib ua seamless steel yeeb nkab, ERW steel yeeb nkab, submerged arc welded yeeb nkab.Tab sis lub ntsiab siv seamless steel yeeb nkab (lub Seamless), ncaj seam siab zaus kuj welding steel yeeb nkab (Electric-Resistance Arc Vuam, abbreviated li ERW), LSAW (Longigudinally Submerged Arc Vuam luv LSAW), muab kauv submerged arc welded yeeb nkab (Spirally. Submerged Arc Vuam, luv ntawm SSAW) plaub.

LSAW yeeb nkab muab faib ua UO (forming method of UOE), RB (RBE), JCO (JCOE) thiab lwm yam.Hlau phaj hauv molding yuav raug nias rau hauv U-puab, thiab tom qab ntawd nias rau hauv O-, thiab tom qab ntawd sab hauv thiab sab nraud submerged arc vuam, tom qab vuam, feem ntau yog qhov kawg ntawm qhov ntev ntawm lub expander (Expanding) hu ua UOE welded yeeb nkab, tsis nthuav dav hu ua UO yeeb nkab.Siab steel phaj yob dabtsi yog khoov (Yob Bending), thiab tom qab ntawd sab hauv thiab sab nraud submerged arc vuam, tom qab vuam, nthuav dav RBE yeeb nkab, lossis tsis nthuav dav RB yeeb nkab.Moulding phaj raws li hom JOC-kev txiav txim nthuav dav JCOE yeeb nkab lossis tsis nthuav dav JCO yeeb nkab tom qab vuam.LSAW cov kav dej saum toj no, kev siv ntau ntawm UOE.Lub siab zaus kuj welding raj ERW raj embryo los ntawm cov tawv nqaij nyhuv thiab cov nyhuv sib thooj nyob rau hauv high-frequency tam sim no mus rau ntawm lub yaj, thiab ces nyem chais nyob rau hauv siab vuam, uas yog yus muaj los ntawm tsis muaj sab nraud muab tub lim hlau, tshav kub cuam tshuam cheeb tsam, siab. ntau lawm efficiency.Kauv seam yeeb nkab SSAW rau txoj kab ntev-ntev kab yeeb nkab muaj keeb kwm ntev, cov kav dej hauv Suav teb feem ntau yog siv.