L360 Steel Khoom yog dab tsi?
L360yog qib siab -lub zog, qis- alloy (HSLA) steel qib siv hauv cov kav dej xa mus rau kev lag luam roj, roj thiab tshuaj lom neeg. Standardized nyob rau hauvAPI 5L(sib npaug rau Qib X52) thiabTS EN ISO 3183, L360 muaj qhov sib npaug ntawm cov khoom siv hlau ua ntej qhov tseem ceeb ntawm cov qauv kev ncaj ncees, toughness thiab superior field weldability rau loj -scale zog infrastructure.
Chemical Composition thiab Alloying Strategy
| Element | Hom txwv |
|---|---|
| Cov pa roj carbon (C) | Max 0.20-0.22% |
| Manganese (Mn) | Txog li 1.60% |
| Silicon (Si) | Txog li 0.45% |
| Phosphorus (P) | Tsawg dua 0.025% |
| Sulfur (S) | Tsawg dua 0.020% |
| Nb, V, Ti | Grain refinement ntxiv |
Superior Mechanical Properties
Yield zog:
Yam tsawg kawg nkaus 360 MPa (52,200 psi), mus txog 530 MPa rau PSL2
Tensile zog:
460-760 MPa
Elongation:
yam tsawg kawg nkaus 19-23% rau kev khoov plasticity
Manufacturing Versatility: SMLS thiab Welded
Seamless (SMLS):
nyiam rau siab -lub siab refinery thiab subsea seem.
Welded (ERW, LSAW, SSAW):
tus nqi -zoo rau loj - txoj kab uas hla kis loj.
Ntiaj teb no Industrial Applications
Tshaj li cov kav dej roj thiab roj, L360 yog siv rau hauv siab - lub zog muaj zog engineering, kev lag luam chemical faib thiab hauv nroog siab - cov kav dej siab. Nws kev sib xyaw ua ke ntawm kev tiv thaiv corrosion thiab muaj peev xwm sab hauv siab ua rau nws yog ib qho ntawm feem ntau txhim khu kev qha thiab ntau yam khoom siv niaj hnub piping.
Cov lus nug nquag
Puas yog L360 zoo ib yam rau Qib X52?
Yog lawm. L360 yog tus qauv metric (360 MPa tawm los) hauv ISO 3183 thiab GB / T 9711; X52 yog lub npe Asmeskas (52,000 psi) hauv API 5L.
Puas yog L360 yuav tsum tau kuaj qhov cuam tshuam?
Rau PSL2, yog - Charpy V- qhov ntsuas ntsuas ntawm 0℃lossis -20℃txheeb xyuas cov pob txha puas.
L360 puas tuaj yeem siv rau hauv kev pabcuam qaub?
Txheem L360 yog rau kev pabcuam qab zib; H₂S ib puag ncig xav tau L360QS lossis L360MS qib nrog txwv tsis pub tawm los thiab kuaj HIC.
Dab tsi yog qhov weldability ntawm L360?
Zoo heev, ua tsaug rau qis carbon sib npaug; preheating tej zaum yuav xav tau rau cov seem tuab heev.
Dab tsi yog lub neej voj voog ntawm L360 pipelines?
Nrog 3PE lossis FBE txheej, 50 xyoo lossis ntau dua ntawm kev ua haujlwm nyab xeeb.
