ASTM A519 yog cov qauv tsim los ntawm Asmeskas haiv neeg rau kev sim thiab cov ntaub ntawv (ASTM), uas yog siv rau Seamless cov hlau thiab alloy steel rau kev siv tshuab engineering. Hom yeeb nkab no feem ntau yog siv hauv cov khoom siv uas yuav tsum tau muaj qhov siab thiab lwm yam khoom siv tshuab hluav taws xob, thiab cov kev siv hluav taws xob ntau dua li {{} Cov ntaub ntawv siv kub (}
Qib steel thiab qhov sib txawv raws li A519 tus qauv
Cov qauv no yog them rau ntau qib STEEL, feem ntau muab faib ua ob pawg: carbon steel thiab alloy steel. Cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv neeg kho tshuab thiab muaj cov xwm txheej sib txawv ntawm cov qauv hlau sib txawv ntau yam sib txawv.
1.Carbon qib steel
Qib 1020
Composition: Tsawg {-} cov hlau roj carbon steel (C Tsawg dua lossis sib npaug nrog 0.20%), muaj manganese (0.30-0.60%).
Kev ua tau zoo: kuj muaj lub zog tsawg (tensile lub zog ntau dua lossis sib npaug zos rau 205 MPa), tab sis kev sib luag zoo dua lossis kev sib npaug thiab weldability.
Daim Ntawv Thov: Lub teeb {- ruaj khawm, xws li nkhaus, xwm txheej, thiab lwm yam.
Qeb 1025
Kev sib xyaw: Cov pa roj carbon cov ntsiab lus me ntsis (C: 0.22-0.28%), thiab cov ntsiab lus manganese yog zoo li ntawm 1020.
Kev ua tau zoo: Lub zog siab dua li 1020 (tensile lub zog ntau dua lossis sib npaug rau 415 MPa, tawm kom muaj zog dua los yog sib npaug rau 240 MPA).
Daim Ntawv Thov: Nruab Nruab Nruab Nrab- Cov khoom siv nra hlau, xws li cov ncej hauv.
2.alloy Steel qib
Qeb 4130
Kev sib xyaw: muaj chromium (0.80-1.10%) thiab molybdenum (0.15-0.25%), thiab cov ntsiab lus carbon.38-0.33%.
Kev Ua Tau Zoo: Siab zog (Tensile lub zog ntau dua los yog sib luag rau 290 MPA txhim kho ntau dua lossis kev ua kom sov dua (quenching + tempering).
Daim ntawv thov: High - kev sib cav sib ceg xws li aviation thiab sib tw tsheb tsav cov phuam.
Qib 4140
Kev sib xyaw: cov ntsiab lus muaj peev xwm ntau dua (0.38-0.43%), chromium (0.80-1.10%), Molybdenum (0.15-0.25%).
Kev Ua Tau Zoo: Tensile lub zog ntau dua los yog sib npaug rau 655 MPa, tawm los ntawm 415 MPa, lub hardness loj tab sis tsis zoo weldability.
Daim Ntawv Thov: Hnyav - Duty} Duty} Duty ... Doming Cov Cuab Yeej, thiab lwm yam.
Qib 8620
Composition: muaj npib tsib xee (0.40-0.70%), chromium (0.60%), Molybdenum (0.15%), thiab cov pa roj av (0.18).
Kev Ua Tau Zoo: Lub siab nruj, haum rau kev kho mob carburizing mus, thiab kev cuam tshuam zoo heev.
Daim Ntawv Thov: Zog, Camshafts thiab lwm yam uas xav tau saum npoo hardening.
Qhov sib txawv los ntawm lwm cov qauv ASTM
A53 / A106: siv hauv cov pas dej piping (xws li roj thiab roj), nws qhov tseem ceeb tshaj plaws ntawm lub siab kuj tseem tsis yog muaj zog.
A335: Haum rau high - kub thiab siab -}}} molybdenum alloy steel.
A519: Tshwj xeeb tsim los rau cov tshuab kho tshuab, nws hais txog qhov chaw raug thiab tensile / paib muaj zog.
Yam los txiav txim siab thaum xaiv qib steel
Cov kev yuav tsum tau ua: rau high - kev sib haum xeeb ib puag ncig, xaiv 4140 lossis 4130.
Qhov Txheej Txheem: 1020/1025 yog qhov yooj yim rau weld thiab ua haujlwm txias.
Kev kho cua sov: thaum kev kho cua sov yog xav tau los txhim kho kev ua tau zoo, alloy steel yuav tsum tau xaiv.
Tus nqi: Tus nqi ntawm cov roj carbon hlau (xws li 1020) qis dua li ntawm cov hlau sib txuas.
Los ntawm kev xaiv cov qauv steel, astm A519 Seamless kav tuaj yeem ntsib cov kev xav tau ntawm lub teeb ntawm cov khoom siv hnyav thiab los ntawm kev ua haujlwm hnyav.
Cim npe nrov: ASTM A519 Seamless Yeeb Nkab, Tuam Tshoj, Tuam Tshoj Chaw Tsim Khoom, Chaw Tsim Tshuaj, Hoobkas, Nqe
