ASTM A335 GR. P12 thiab ASTM A213 Gr. T12 yog ob feem ntau siv chromium - molybdenum (cr {} mo) alloy seamless steel leeg. Txawm hais tias lawv cov tshuaj lom neeg tshuaj lom neeg zoo sib xws, lawv sib txawv hauv qab cov qauv ntawm cov qauv, kev tsim khoom, thiab cov ntawv thov tseem ceeb. Cov hauv qab no muab cov ncauj lus piav qhia ntawm ob los ntawm kev xav txog kev tsim tshuab thiab ua haujlwm.
I. Kev Tsim Kho Txheej Txheem
1. ASTM A335 GR. P12 Alloy Seamless Tus Hlau Tube
- Txheem thiab daim ntawv thov:Conforms rau ASTM A335 tus qauv, uas tshwj xeeb npog seamless ferritic alloy {} steel kav rau siab- kub kev pab. Qhov no txhais tau tias P12 cov leeg yog tsim thiab tsim rau high- qhov siab thiab siab} cov tshuab ntsuas kub}} kub tshuab.
- Txheej txheem tsim khoom:Tsim los ntawm high - Zoo alloy steel los ntawm kub tho, kub dov, lossis kos duab txias. Cov txheej txheem ntawm cov txheej txheem nyob rau hauv cov txiaj ntsig zoo ntawm alloy cov khoom thiab nruj me ntsis tswj kev kho cua sov (feem ntau li qub + tempering).
- Ntsiab lus tseem ceeb:Lub hom phiaj tseem ceeb yog kom tau raws li qhov yuav tsum tau rau high- kub, siab- siab txoj kev pabcuam.
2. Astm A213 Gr. T12 alloy Seamless steel raj
- Txheem thiab daim ntawv thov:Conforms to the ASTM A213 standard, which specifically covers seamless ferritic and austenitic alloy-steel tubes for boilers, superheaters, and heat-exchangers. T12 cov leeg yog feem ntau siv los tsim cov cua sov comparer hlau.
- Txheej txheem tsim khoom:Kuj tsim los ntawm kub dov lossis cov txheej txheem txias. Cov raj no yuav tsum muaj qhov tseeb ntawm qhov tseeb, nto smoothness, thiab phab ntsa thickness uniformity.
- Ntsiab lus tseem ceeb:Lub hom phiaj tseem ceeb yog kom tau raws li qhov yuav tsum tau ua rau cov kev xav tau rau cov khoom tseem ceeb tshaj plaws rau kev sib pauv cua sov.
Ii. Ua yeeb yam
1. ASTM A335 GR. P12 Seamless Steel Tube
- Tub Ntxhais Kev Ua Haujlwm:Zoo heev ntev-}}}- kub lub zog thiab cov plaw ua haujlwm. Kuj tseem muaj oxidation zoo thiab corrosion tsis kam.
- Cov Khoom Siv Neeg Kho Tshuab:Cov yam ntxwv zoo heev ntawm chav sov (tensile lub zog ntau dua los yog sib npaug ntawm 420 mpa, elongation ntau dua los yog sib npaug rau 30%).
- Tshuaj lom neeg cov tshuaj:Lub cev muaj pes tsawg leeg sib xyaw (c, si, mn, p, s, cr, mo) nrog cov tshuaj uas tswj tau meej.
2. Astm A213 Gr. T12 alloy Seamless steel raj
- Tub Ntxhais Kev Ua Haujlwm:Kev qhia txog microstration teeb meem ntawm kev kub siab, tsis kam mus rau high- {- fouling muaj peev xwm.
- Cov Khoom Siv Neeg Kho Tshuab:Lub zog siab, kev ua kom zoo heev, thiab cov yas. Ze heev rau P12.
- Tseem ceeb sib txawv:Lub ntsiab lus yuav tsum tau ua rau cov neeg pom qhov tseeb ntawm geometric qhov tseeb thiab qhov zoo.
III. Ntsiab lus thiab sib piv cov lus
|
Yam zoo |
ASTM A335 GR. Pur |
ASTM A213 GR. T12 |
|
Thawj tus qauv |
ASTM A335 (Yeeb rau high- Temp Service) |
ASTM A213 (raj rau boilers & tshav kub sib pauv) |
|
Tseem ceeb daim ntawv thov |
Siab - temp, siab-}} siab cov tshuab siab Piping |
Kev Sib Tham Tshav Kub Kub |
|
Kev Tsim Kho Kom Ua Kom Zoo |
Siab - bearing muaj peev xwm, lub zog ua kom muaj zog |
Qhov tseeb ntawm qhov tseeb, nto tiav, kev sib dhos |
|
Txoj kev ua tiav |
Kub Rolling / Txias Teeb Duab + Kev Kho Kub Kub |
Tseem ceeb khaub thuas nqus + Kev kho cua sov |
|
Kev tsom xam |
High - temp creep tsis kam, ntev- lub zog |
High - temp zog, microstructation ruaj khov |
|
Qhov seem tsis ntev |
High yuav tsum tau |
High yuav tsum tau |
|
Nto Kho |
Feem ntau, tsis muaj txheej tshwj xeeb |
Feem ntau, tsis muaj txheej tshwj xeeb |
Xaus:
Tsuas yog muab tso, P12 yog rau "paving txoj kev" (ua haujlwm raws li kev nias siab), thaum T12 yog rau "tsim lub phab ntsa" (pabcuam thaum tshav kub hloov chaw). Txawm hais tias "cib" (tshuaj lom neeg) yog qhov sib xyaw ua ke zoo sib xws, lawv cov duab, cov hom phiaj kawg, thiab lub hom phiaj kawg yog txawv.