ASTM A179 yog tus qauv tsim los ntawm American Society rau kev sim thiab cov ntaub ntawv (} Hauv qab no yog ib qho kev qhia txog nws cov ntsiab lus tseem ceeb:
1. Cov ntawm daim ntawv thov:
Siv rau kev ua txhaum cai
Npog txoj kab uas hla (OD) ntau thiab tsawg los ntawm 1 nti (3.2 mm), tab sis yog tub nrog me me lossis cov phab ntsa tuab kuj tseem yuav siv tau. Txawm li cas los xij, kev xav tau kev ua haujlwm yuav tsum tsis siv rau cov hlab nrog ib od <1/8 nti (3.2 hli tuab <0.015 nti (0.4 hli).
2. Tshuaj lom neeg:
Cov hlau yuav tsum tau ua raws li cov tshuaj xyaw tshwj xeeb.
Cov ntsiab lus Carbon: 0.06% -0.18%
Manganese cov ntsiab lus: 0.27% -0.63%
Cov Ntsiab Lus Phosphorus siab kawg: 0.035%
Cov Lus Sulfur Sulfur: 0.035%
Alloy cov hlau raug zam ntawm cov kev txwv no vim yog cov kev cai ntxiv rau cov khoom tshwj xeeb.
3. Kev tsim qauv:
Tubes yuav tsum yog dag thiab txias - kos.
Tom qab qhov kawg txias - Cov txheej txheem kos duab, lawv yuav tsum tau kho cua sov thaum 1200℃f (650 degree) lossis siab dua.
4. Cov Mob Deg:
Cov leeg ua tiav yuav tsum muaj kev ywj pheej los ntawm scaling, nrog cov oxide cov tshuaj oxide tsis suav hais tias yog ntsuas.
5. Cov Cuab Yeej Siv Cov Tshuab & Cov Xeem Yuav Tsum:
Hardness:Lub Rockwell B Hardness yuav tsum tsis pub tshaj 72 hrb.
Kev Kuaj Neeg Kho TshuabXws li cov flarthening, flaring, flanging (raws li lwm txoj kev sib cav rau qhov xwm txheej hauv qhov xwm txheej tshwj xeeb), kev sim hardness, thiab hydrostatic kev sim.
Rau cov kev ntsuam xyuas daj, 2 cov hnoos qeev yog coj los ntawm txhua pob (1 toj ib lub raj).
Hydrostatic Kev kuaj yog qhov yuav tsum tau rau txhua lub raj tshwj tsis yog hloov los ntawm kev sim hluav taws xob ntawm hluav taws xob ib tus neeg yuav khoom thov.
6. Khoom Cim:
Ntxiv rau cov cim kev cim tau, cov hlab yuav tsum muaj tus yuav lub tuam txhab lub tuam txhab npe thiab tus lej xaj.
Kev qhia tshwj xeeb
Qhov loj me:
Od3.2-76.2mm (1 / 8in-3in)
Txheem:
ASTM A179, SA179
Cov txheej txheem:
Seamless thiab txias - kos
Nto Kho:
Varnish lossis xim dub
Daim Ntawv Thov:
Thaum tshav kub kub - echanger thiab condenser leeg
Hom Pob:
Bundled thiab ntim rau hauv cov hnab ntses seaworthy, lub tiaj xaus
Tshuaj xyuas:
EN 10204 / 3.1 lossis EN 10204 / 3.2 Daim ntawv pov thawj xeem ntawv zeb, SGS, BV
ASTM AN179 BOILER RAJ DOULTIONFICITION
|
C |
Mn |
P max |
S max |
Si max |
|
0.06-0.18 |
0.27-0.63 |
0.035 |
0.035 |
0.25 |
ASTM A179 BOILER TUBE Cov Khoom Siv Khoom Siv Neeg Kho Tshuab:
|
Tensile Lub Zog KSI (MPA) |
Min 47 (325) |
|
Yield zog KSI (MPA) |
Min 26 (180) |
|
Elongation (50mm)% |
Feeb 35 |
|
Kev nyuaj |
72Hrb |
GNEE SA179 Cov Yeeb Nkab Roj Hmab Rau Boiler
