SA 387 Qib 11 CLASS 2ASME SA387 Qib 11Class 2 yog siv rau hauv ntau yam kev lag luam thiab muaj txiaj ntsig zoo, tshwj xeeb hauv kev lag luam roj, roj thiab petrochemical, qhov twg cov kua dej thiab cov roj siv feem ntau khaws cia ntawm qhov kub thiab txias.
Tshuaj muaj pes tsawg leeg
| Element | Chemical Composition (%) | |
| SA387 Qib 11 | ||
| Cov pa roj carbon: | Kev Ntsuas Kub: | 0.05 - 0.17 |
| Product Analysis: | 0.04 - 0.17 | |
| Manganese: | Kev Ntsuas Kub: | 0.40 - 0.65 |
| Product Analysis: | 0.35 - 0.73 | |
| Phosphorus: | Kev Ntsuas Kub: | 0.035 |
| Product Analysis: | 0.035 | |
| Sulfur (max): | Kev Ntsuas Kub: | 0.035 |
| Product Analysis: | 0.035 | |
| Silicon: | Kev Ntsuas Kub: | 0.50 - 0.80 |
| Product Analysis: | 0.44 - 0.86 | |
| Chromium: | Kev Ntsuas Kub: | 1.00 - 1.50 |
| Product Analysis: | 0.94 - 1.56 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.45 - 0.65 |
| Product Analysis: | 0.45 - 0.70 |
Kev siv ntawm SA 387 Gr. 11 Cl . 2
Cov hlab ntsha siab hauv kev lag luam roj thiab roj: Tshwj xeeb ua haujlwm hauv cov dej ntws, nruab nrab, thiab qis qis, xws li cov hlab ntsha rau cov roj qaub (H₂S) ua, siab -kub hydrocarbon cia, thiab hydrogenation units, ua tsaug rau nws zoo heev corrosion thiab kev nyuaj siab cracking kuj.
Boilers: Siv rau kev tsim cov khoom tseem ceeb ntawm cov boilers thiab fais fab nroj tsuag boilers, nrog rau cov superheater headers thiab reheater sib dhos, kom tiv taus siab nruam siab - kub flue gases thiab chav siab.
Thaum tshav kub kub exchangers: Zoo tagnrho rau kev tsim cov khoom siv hluav taws xob hauv cov tshuaj, petrochemical, thiab cov chaw tsim hluav taws xob, vim nws tuaj yeem tiv taus kev kub ntxhov thiab oxidation thaum hloov cov txheej txheem.
Cov kav dej thiab lwm yam khoom siv kub -: Siv rau ntawm ntug dej hiav txwv thiab ntug dej hiav txwv siab- cov kav dej kub uas thauj cov txheej txheem kub, nrog rau kev txhawb nqa cov khoom siv rau cov txheej txheem thermal, ua kom cov txheej txheem ruaj khov nyob rau hauv ntev - lub sij hawm siab - qhov kub thiab txias.
Flanges: Siv los tsim hnyav -flanges flanges rau siab - kub thiab siab - cov kav dej siab, muab kev ruaj ntseg sealing kev ua tau zoo thiab lub zog txhua yam los tiv thaiv kev xau ntawm cov ntsiab lus txuas.
High -kub ducting: Siv nyob rau hauv kev lag luam ductwork uas conveys siab - kub flue gases los yog txheej txheem huab cua, tiv thaiv thermal deformation thiab oxidation nyob rau hauv hnyav thermal ib puag ncig.
Cov yeeb nkab clamps: Tsim los rau hauv siab - lub zog yeeb nkab clamps rau kev ruaj siab siab - cov kav dej kub, tuav cov kav dej sib txuas thaum tiv thaiv cov thermal expansion thiab contraction ntawm lub system.
Valves: Ua haujlwm nyob rau hauv kev tsim cov valve lub cev thiab cov khoom siv sab hauv rau siab -kub siab tshuab, kom ntseeg tau tias hnav tsis kam, corrosion resistance, thiab txhim khu kev qha hloov kev ua tau zoo nyob rau hauv huab cua txias.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
1.Tus nqi ntawm SA 387 Qib 11 Chav Kawm 2 yog dab tsi?
Tus nqi ntawm SA 387 Qib 11 Chav Kawm 2 steel phaj sib txawv los ntawm tus neeg muag khoom, qhov ntau, qhov ntev (thickness, qhov loj), thiab kev ua lag luam, tab sis cia siab tias tus nqi feem ntau nyob rau hauv thaj tsam ntawm $ 1,000 txog $ 3,000 ib tuj, nrog qee tus nqi ntawm ib ncig ntawm $ 150 mus rau ob peb puas duas las, feem ntau hais nyob rau hauv Board (FOB).
2.Qhov kub ntawm SA 387 GR 11 yog dab tsi?
Nyob rau hauv qis kawg ntawm qhov kub ntawm SA 387 Gr 11 (1150℃F min tempering kub), thiab SA 387 Gr 22 (1250℃F min tempering kub) yog siv. Cov qib no tuaj yeem teev nyob rau hauv chav kawm 1 lossis 2 thiab tseem tuaj yeem muab rau hauv Normalized & Tempered lossis Quenched thiab Tempered.