>X52 in Context
API 5L X52 yog qhov nruab nrab - lub zog kab yeeb nkab qib nrog qhov ntsuas qhov siab tshaj plaws ntawm 360 MPa, lossis 52,200 psi, thiab qhov ntsuas qhov tensile tsawg kawg nkaus ntawm 460 MPa. Nws ISO 3183 thiab GB / T 9711 tus qauv yog L360, thiab cov yeeb nkab xa tawm feem ntau yog ob lub npe nrog ob lub npe. Qib yog qhov nrov vim nws muab cov peev txheej muaj txiaj ntsig zoo thaum tseem ua siab ntev ntawm kev ua haujlwm vuam ib txwm ua, uas ua rau kev tsim nyog thiab kev tsim kho tus nqi kwv yees.
>Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Yam tsawg kawg yield zog | 360 MPa / 52,200 psi |
| Tsawg kawg tensile zog | 460 MPa / 66,700 psi |
| Upper yield zog, PSL2 | Txwv tsis pub tshaj qhov tsawg kawg nkaus |
| Yield rau tensile ratio, PSL2 | Capped los ntawm tus qauv kom khaws ductility |
| Elongation | Txiav txim siab los ntawm tus qauv qauv raws li lub zog tensile thiab tus ntoo khaub lig- cheeb tsam |
| Hardness, PSL2 | 250 HV10, 250 HBW lossis 22 HRC siab tshaj plaws |
| Impact toughness, PSL2 | Charpy V-qhov ntsuas ntsuas yuav tsum tau ua, nrog rau qhov ntsuas kub thiab lub zog pom zoo rau qhov project |
Lub zog ntawm lub zog txwv thiab qhov tawm los rau tensile piv cap qhov txawv ntawm PSL2 los ntawm PSL1 cov khoom thiab teeb meem qhov twg girth welds yuav tsum phim lub zog ntawm cov yeeb nkab lub cev. Cov yeeb nkab uas muaj qhov txawv txav tsis zoo rau lub zog ntawm nws lub zog tensile tuaj yeem coj tus cwj pwm nrog lub peev xwm txo qis thaum lub sijhawm teeb tsa.
>Tshuaj muaj pes tsawg leeg
| Element | PSL1 | PSL2, R, N thiab M tej yam kev mob | PSL2, Q yam |
|---|---|---|---|
| Cov pa roj carbon | 0.28% max seamless, 0.26% max welded | 0.24% max seamless, 0.22% max welded | 0.18% max |
| Manganese | 1.40% max | 1.40% max | 1.60% max |
| Phosphorus | 0.030% max | 0.025% max | 0.025% max |
| Sulfur | 0.030% max | 0.015% max | 0.015% max |
| Carbon sib npaug | Tsis tswj | Txwv rau qib kawm | Txwv rau qib kawm |
Lub zog yog ua tiav los ntawm manganese thiab los ntawm micro-alloying nrog niobium, vanadium thiab titanium, uas nws cov ntsiab lus sib xyaw yog capped los ntawm tus qauv. Kev tswj cov pa roj carbon sib npaug yog dab tsi ua rau X52 PSL2 weldable nrog cov txheej txheem ua haujlwm thaum khaws cov tawv nqaij ntawm qhov kub thiab txias.
>Tej kev siv
Cov roj thiab cov kav xa hluav taws xob hauv nruab nrab siab ntau yam.
Sib sau cov kab, cov kab ntws thiab chaw nres tsheb piping.
Kev xa dej thiab cov txheej txheem kev lag luam.
Cov qauv tubular thiab piling qhov twg yuav tsum muaj ntawv pov thawj yield zog.
Slurry thiab tailings kab hauv kev pabcuam mining.
>Weldability thiab Fabrication
X52 yog ib qho kev zam txim ntau ntawm cov yeeb nkab qib rau vuam. Cov txheej txheem tsim nyog tau txais API 1104 lossis ISO 13847, thiab ob qho tib si cellulosic thiab qis- hydrogen consumables yog siv nyob ntawm seb lub puag ncig tej yam kev mob thiab qhov yuav tsum tau toughness. Preheat yog ib txwm tswj los ntawm phab ntsa tuab thiab cov pa roj carbon sib npaug ntawm cov cua sov tiag tiag ntawm cov hlau, thiab cov khoom siv hluav taws xob raug txwv kom cov cua sov- cuam tshuam rau cheeb tsam toughness tsis degraded. Sab hauv thiab sab nraud ntawm cov yeeb nkab kawg raug ntxuav thiab qhov ntev ntawm qhov bevel raug txheeb xyuas ua ntej vuam, vim tsis sib haum ntawm phab ntsa thickness los yog kev npaj tsis raug bevel yog qhov ua rau muaj qhov tsis xws luag. Qhov twg cov yeeb nkab yog coated, qhov kev txiav -rov qab ntev yuav tsum raug hwm kom cov txheej txheej seem tsis nkag mus rau hauv pas dej ua ke. Rau kev pabcuam qaub, cov yeeb nkab raug txiav txim nrog kev txwv tsis pub siv tshuaj lom neeg thiab qis dua qhov siab tshaj plaws, thiab cov pob qij txha welded yog qhov hardness tshawb fawb.
>FAQ
Q: Dab tsi yog qhov muaj zog ntawm API 5L X52?
X52 muaj qhov tshwj xeeb tshaj tawm lub zog ntawm 360 MPa, sib npaug rau 52,200 psi, thiab lub zog tensile tsawg kawg nkaus ntawm 460 MPa, sib npaug rau 66,700 psi.
Q: Dab tsi yog qhov sib npaug ntawm X52 hauv ISO 3183?
Lub npe sib npaug yog L360. Ob lub npe xa mus rau tib yam tsawg kawg nkaus tawm lub zog qhia hauv megapascals thiab hauv ntau txhiab phaus ib square inch.
Q: Qhov siab tshaj carbon ntsiab lus ntawm X52 nyob ntawm seb yog dab tsi?
Nws nyob ntawm cov khoom specification qib thiab tus me nyuam tus mob. PSL1 tso cai 0.28% rau seamless yeeb nkab, PSL2 nyob rau hauv R, N thiab M tej yam kev mob tso cai 0.24 %, thiab Q mob tso cai 0.18 %.
Q: Vim li cas carbon sib npaug tswj hauv X52 PSL2?
Carbon sib npaug kwv yees seb cov hlau yuav coj li cas thaum vuam. Kev txwv nws txo qhov kev pheej hmoo ntawm kev nyuaj, tawg -rhiab microstructures nyob rau hauv tshav kub- cuam tshuam cheeb tsam thiab tso cai rau ib tug yooj yim vuam txheej txheem.
Q: X52 yeeb nkab puas tuaj yeem siv rau qhov kub thiab txias?
Yog lawm, thaum cov yeeb nkab raug txiav txim nrog qhov tsim nyog Charpy ntsuas kub thiab ntsuas lub zog nqus tau txaus siab rau qhov project yuav tsum tau ua. Qhov kev cuam tshuam yuav tsum tau teev nyob rau hauv daim ntawv xaj yuav khoom.
Q: Qhov siab tshaj plaws tso cai hardness ntawm X52 PSL2 yog dab tsi?
Tus qauv txwv PSL2 yeeb nkab rau 250 HV10, 250 HBW lossis 22 HRC. Cov kev pabcuam qaub qaub feem ntau teeb tsa qis tshaj plaws rau cov yeeb nkab lub cev thiab cov welded sib koom ua ke.
