Txheej txheem cej luam ntawm GOST 550
GOST 550 yog ib lub xeev Lavxias tus qauv uas txhais cov yeeb nkab seamless steel rau kev lag luam roj, npog cov yeeb nkab rau cov roj kav dej, cov kav dej roj, cov khoom siv drilling thiab kev teeb tsa. Tus txheej txheem qhia txog cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, qhov ntev ntev, kev sim thiab kos npe ntawm cov yeeb nkab. Nws yog dav siv nyob rau hauv Russia thiab CIS lub teb chaws thiab tau txais nyob rau hauv ntau qhov project nyob rau hauv Central Asia thiab Eastern Europe.
Cov yam ntxwv ntawm cov hlau 20
Hlau 20 yog cov khoom zoo siab carbon steel nrog cov ntsiab lus ntawm 0.17 txog 0.24 feem pua. Nws yog qib siv dav tshaj plaws ntawm GOST 550 yeeb nkab vim nws sib xyaw ua ke zoo zog, ductility thiab weldability nrog tus nqi nruab nrab. Lub zog tawm los yog kwv yees li 245 MPa thiab lub zog tensile nyob rau hauv thaj tsam ntawm 410 txog 530 MPa, nrog elongation tsawg kawg yog 24 feem pua.
Cov ntawv thov tseem ceeb hauv Kev Lag Luam Roj
Steel 20 seamless yeeb nkab ib GOST 550 yog siv rau cov roj thiab roj sib sau ua ke kab, txhaj tshuaj, teb pipelines thiab txheej txheem piping ntawm refineries. Nws tseem ua haujlwm li casing thiab tubing accessories, cov kab twj tso kua mis thiab cov kab kev pabcuam dav dav hauv cov chaw siv roj av. Kev tsim kho seamless muab kev ntseeg siab ruaj khov nyob rau hauv ib puag ncig xav tau.
Lwm cov neeg siv kev lag luam
Tshaj li cov roj ntau lawm, GOST 550 Steel 20 yeeb nkab yog siv nyob rau hauv mechanical engineering rau shafts, rollers thiab hydraulic thooj voos kheej kheej, nyob rau hauv boiler thiab tshav kub hloov khoom siv, thiab nyob rau hauv kev tsim kho rau cov tswv cuab. Vim tias tus qauv raug lees txais thoob plaws hauv cheeb tsam CIS, cov yeeb nkab tau teev tseg los ntawm cov neeg cog lus rau kev siv dej, cua sov tes hauj lwm thiab cov khoom siv hluav taws xob hauv cov teb chaws.
Kev xeem thiab kev xav tau zoo
Tus qauv yuav tsum muaj tshuaj ntsuam xyuas ntawm txhua qhov cua sov, kev ntsuas tensile, thiab, rau cov qib tseem ceeb, kev ntsuam xyuas cuam tshuam. Kev ntsuam xyuas hydrostatic yog qhov yuav tsum tau ua rau cov yeeb nkab siab, thiab tsis yog - kev tshuaj xyuas kev puas tsuaj yog siv rau lub cev yeeb nkab. Dimensional kam rau ua raws li GOST system thiab cov ntawv pov thawj yuav tsum tau muab tso rau hauv hom ntawv lees paub los ntawm Lavxias cov neeg soj ntsuam xyuas.
Cov lus nug nquag
Dab tsi yog qhov txawv ntawm GOST 550 thiab GOST 8731?GOST 550 npog seamless yeeb nkab tshwj xeeb rau kev lag luam roj nrog cov kev cai nruj dua, thaum GOST 8731 npog cov hom phiaj kub ua haujlwm seamless yeeb nkab.
Puas yog Steel 20 zoo ib yam li ASTM qib?Hlau 20 yog dav piv rau ASTM A106 Qib B lossis A53 Qib B raws li lub zog thiab weldability, txawm hais tias cov qauv sib txawv hauv cov ntsiab lus kuaj.
GOST 550 yeeb nkab puas tuaj yeem welded?Yog, Steel 20 muaj qhov zoo weldability nrog cov txheej txheem carbon steel thiab consumables.
Dab tsi ntawm txoj kab uas hla GOST 550 npog?Tus txheej txheem npog ntau yam los ntawm cov kab me me mus txog rau txoj kab uas hla loj loj, nyob ntawm txoj kev tsim khoom.
Puas yog GOST 550 yeeb nkab haum rau cov kev pabcuam kub?Standard Steel 20 yog npaj rau nruab nrab kub; rau qhov kev pab cuam uas tsis kub kub ib qib nrog guaranteed tej yam khoom yog teev.
