ASTM A312 Stainless Hlau Yeeb Nkab Cov Txheej Txheem:
1. ASTM A312 Seamless (SML) yeeb nkabyuav tsum tau ua los ntawm cov txheej txheem uas tsis koom nrog vuam ntawm txhua theem ntawm kev tsim khoom.
2. ASTM A312 Welded (WLD) yeeb nkabyuav tsum tau siv cov txheej txheem vuam tsis siv neeg uas tsis muaj qhov sib ntxiv ntawm cov hlau muab tub lim thaum lub sij hawm vuam txheej txheem.
3. Heavy txias-ua hauj lwm (HCW) yeeb nkabyuav tsum tau ua los ntawm kev thov txias Ua hauj lwm tsis pub tsawg tshaj 35% txo nyob rau hauv thickness ntawm ob phab ntsa thiab weld mus rau ib tug welded yeeb nkab ua ntej qhov kawg anneal. Tsis siv neeg muab tub lim yuav tsum tau siv los ua lub vuam. Ua ntej ua haujlwm txias, lub vuam yuav tsum tau kuaj 100% radiographically raws li qhov yuav tsum tau muaj ntawm ASME Boiler thiab Pressure Vessel Code, Tshooj VIII, Division 1, kho tshiab kawg, Nqe lus UW-51.
ASTM A312 Stainless hlau yeeb nkabKev kho cua sov
Tag nrhoASME SA312 yeeb nkabyuav tsum tau muab tso rau hauv lub tshav kub kho mob raws li qhov yuav tsum tau ua. Xwb, rau seamless yeeb nkab, tam sim ntawd tom qab kub sib sau thaum qhov kub ntawm cov kav dej tsis yog tsawg tshaj li qhov teev yam tsawg kawg nkaus kev kho mob kub, kav tej zaum yuav quenched ib tug neeg nyob rau hauv dej los yog sai txias los ntawm lwm yam txhais tau tias.
| Qib lossis UNS DesignationA | Thaum tshav kub kub kho TemperatureB | Cov Cuab Yeej Cuab Yeej / Kev Ntsuas Kev Ntsuas |
| Txhua qib tsis muaj npe nyob rau hauv qab no | 1900 degree F [1040 degree] | C |
| TP321H, TP347H, TP348H Txias tiav | 2000 degree F [1100 degree] | D |
| TP321H, TP347H, TP348H Kub tiav | 1925 degree F [1050 degree] | D |
| TP304H, TP316H Txias tiav | 1900 degree F [1040 degree] | D |
| TP304H, TP316H Kub tiav | 1900 degree F [1040 degree] | D |
| TP309H, TP309HCb, TP310H, TP310HCb | 1900 degree F [1040 degree] | D |
| S30600 | 2010-2140 ° F [1100-1170 degree] | D |
| S30815, S31272 | 1920 degree F [1050 degree] | D |
| S31254, S32654 | 2100 degree F [1150 degree] | D |
| S33228 | 2050-2160 ° F [1120-1180 degree] | D |
| S34565 | 2050-2140 ° F [1120-1170 degree] | D |
| S35315 | 2010 degree F [1100 degree] | D |
| N08367 | 2025 degree F [1110 degree] | D |
| N08904 | 2000 degree F [1100 degree] | D |
| N08926 | 2010 degree F [1100 degree] | D |
Nco tseg:
A. Kev tsim kho tshiab tau tsim los ua raws li Txoj Cai E 527 thiab SAE J1086.
B. Yam tsawg kawg nkaus, tshwj tsis yog hais tias lwm yam.
C. quenched nyob rau hauv dej los yog ceev ceev txias los ntawm lwm yam txhais tau tias, ntawm tus nqi txaus los tiv thaiv reprecipitation ntawm carbides, raws li pom los ntawm lub peev xwm ntawm kev xeem A 262, Practice E. Cov chaw tsim tshuaj paus tsis tas yuav khiav qhov kev xeem tshwj tsis yog tias nws tau teev nyob rau hauv. kev txiav txim yuav khoom (saib Cov Lus Qhia Ntxiv S7). Nco ntsoov tias Kev Xyaum A 262 yuav tsum tau ua qhov kev ntsuam xyuas ntawm cov qauv sensitized nyob rau hauv qis-carbon thiab stabilized hom thiab ntawm cov neeg sawv cev ntawm cov khoom xa tuaj rau lwm hom. Nyob rau hauv cov ntaub ntawv ntawm tsawg-carbon hom uas muaj 3% los yog ntau dua molybdenum, qhov kev siv ntawm sensitizing kev kho mob ua ntej mus kuaj yuav tsum yog ib qho teeb meem rau kev sib tham ntawm tus neeg muag khoom thiab tus neeg yuav khoom.
D. quenched nyob rau hauv dej los yog sai txias los ntawm lwm txoj kev.
