ASTM A387 Qib 12 Chav Kawm 1yog Cr-Mo alloy steel phaj rau ASTM A387/A387M, engineered rau siab - kub thiab siab - kev pabcuam siab. Muab khoom zoo li qub (tsis zoo li quenched-thiab-Tempered Chav Kawm 2), nws sib npaug ductility, toughness thiab weldability, thiab yog dav siv nyob rau hauv industrial boilers, tshav kub exchangers, reactors reactors thiab qaub- cov khoom siv roj thiab roj.
Cov Khoom Siv Tshuaj Rau ASTM A387 Qib 12 Alloy Steel Phaj
| Element | Chemical Composition (%) | |
| ASTM A387 Qib 12 | ||
| 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: | 0.15 - 0.40 |
| Product Analysis: | 0.13 - 0.45 | |
| Chromium: | Kev Ntsuas Kub: | 0.80 - 1.15 |
| Product Analysis: | 0.74 - 1.21 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.45 - 0.60 |
| Product Analysis: | 0.40 - 0.65 |
Mechanical Property
|
Qib |
A387 Gr.12 CL.1Mechanical Property |
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
A387 Gr.12 Cl.1 |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
t Tsawg dua lossis sib npaug li 50 |
230 |
380-550 |
22 |
|
|
50<> |
- |
- |
18 |
|
Cov ntawv thov tseem ceeb
Cov Khoom Siv Hluav Taws Xob & BoilersQhov zoo tshaj plaws rau kev tsim cov boilers, accumulators, thiab cov txheej txheem cov hlab ntsha, xa cov qauv kev ruaj ntseg rau kev nyab xeeb thiab tuav ntawm siab -kub kua thiab gases nyob rau hauv ntev - lub sij hawm siab - siab khiav hauj lwm tej yam kev mob.
Thaum tshav kub kub ExchangersUa tau zoo heev rau lub plhaub- thiab- raj kub exchangers, industrial coolers, thiab reheaters, ua tsaug rau nws zoo heev thermal conductivity thiab mechanical zog uas tswj kom ruaj khov thaum tshav kub kub kev ua tau zoo txawm nyob rau hauv rov qab thermal cycling.
Refinery & PetrochemicalDav siv nyob rau hauv siab -kub piping systems, txheej txheem manifolds, boiler headers, thiab cia tso tsheb hlau luam rau cov txheej txheem kub kua, withstanding corrosive thiab thermal stress ntawm crude roj refining, tshuaj synthesis, thiab intermediate khoom tuav txheej txheem.
Roj & RojHaum rau cov khoom siv tseem ceeb ntawm ntug dej hiav txwv thiab ntug dej hiav txwv ua haujlwm hauv cov chaw pabcuam qaub uas muaj hydrogen sulfide, muab kev tiv thaiv corrosion thiab kev ua haujlwm ruaj khov los xyuas kom muaj kev nyab xeeb hauv kev tshem tawm hnyav, kev thauj mus los, thiab kev ua haujlwm.
General IndustrialFeem ntau siv rau hauv cov khoom siv tshuaj, cov khoom siv condensers, thiab ntau yam hnyav -cov khoom siv tshuab ua haujlwm, ua tau raws li qhov kev xav tau ntawm kev ua haujlwm siab ntawm siab - kub, siab - hnav kev ua haujlwm hauv kev lag luam.
Tau txais cov lus muaj nuj nqis rau ASTM A387 Qib 12 Chav Kawm 1, Hu rau GNEE Steel.
ASTM A387 Qib 12 Chav Kawm 1 puas tuaj yeem siv rau qis- qhov xwm txheej kub ntxhov?
Tsis yog, nws tsis pom zoo rau cov ntawv thov kub tsawg -. Cov qib steel no yog ua kom zoo rau siab - kub thiab siab - kev ua haujlwm siab, thiab nws cov tawv tawv yuav poob qis heev ntawm qhov kub thiab txias, uas tsis tuaj yeem ua tau raws li qhov kev nyab xeeb ntawm qhov qis - kub siab- cov khoom siv.
Dab tsi yog qhov zoo ntawm kev ua tau zoo ntawm ASTM A387 Qib 12 Chav Kawm 1 hauv kev siv tswv yim?
Nws cov txiaj ntsig tseem ceeb suav nrog kev siab siab -kub creep tsis kam thiab oxidation tsis kam, zoo corrosion kuj rau qaub xov xwm uas muaj hydrogen sulfide, txhim khu kev qha weldability rau ntawm -site fabrication, thiab ruaj khov mechanical zog uas tiv thaiv deformation nyob rau hauv ntev - thermal stress.