ASTM A387 Qib 12 Chav Kawm 1 yog chromium-molybdenum (Cr-Mo) alloy steel phaj tsim los rau weldable boilers, siab hlab ntsha, thiab cov cuab yeej siv hauv kev kub siab, tshwj xeeb tshaj yog nyob rau hauv cov roj, roj, thiab petrochemical industries.
Specifications rau ASTM A387 Qib 12 Alloy Steel Phaj
| Lub npe | Nominal Chromium Cov ntsiab lus (%) |
Nominal Molybdenum Cov ntsiab lus (%) |
| A387 Qib 12 | 1.00% | 0.50% |
Tensile Requirements rau ASTM A387 Qib 12 Alloy Steel Phaj Chav Kawm 1 Phaj
| Lub npe: | Yuav tsum tau: | Qib 12 |
| A387 Qib 12 | Tensile zog, ksi [MPA] | 65 txog 85 [450 rau 585] |
| Yield zog, min, ksi [MPa] / (0.2% offset) | 40 [275] | |
| Elongation hauv 8 nti. [200mm], min % | 19 | |
| Elongation hauv 2 nti. [50mm], min, % | 22 | |
| Txo thaj tsam, min% | ––– |
Cov Khoom Siv Tshuaj Rau ASTM A387 Qib 12 Alloy Steel Phaj
| Lub ntsiab | 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 |
Daim ntawv thov
Cov Khoom Siv Hluav Taws Xob & Boilers:Siv nyob rau hauv industrial boilers, cia tank, thiab siab hlab ntsha kom muaj kev nyab xeeb ntawm cov kua kub/gases, kom muaj kev ruaj ntseg nyob rau hauv lub sij hawm ntev -lub sij hawm siab - kub thiab siab - siab ua hauj lwm tej yam kev mob.
Thaum tshav kub kub Exchangers:Ua haujlwm zoo hauv lub plhaub- thiab- raj, reheaters, thiab cov cua txias vim muaj cov thermal conductivity thiab lub zog zoo, tswj xyuas qhov kev hloov pauv hluav taws xob zoo yam tsis muaj deformation thaum caij tsheb kauj vab.
Roj & Roj Kev Lag Luam:Feem ntau nyob rau hauv refineries rau piping, manifolds, thiab cov txheej txheem cov cuab yeej tuav cov dej kub, kuj rau qaub kev pab cuam, tiv thaiv H₂S corrosion thiab yoog mus rau hnyav onshore thiab offshore extraction ib puag ncig.
Petrochemical & Chemical Cog:Haum rau ntau yam khoom siv uas xav tau kev tiv thaiv corrosion ntawm qhov kub siab, xws li reactors thiab fractionation towers, los tiv thaiv kev yaig ntawm acidic / alkaline chemical media.
Qhov zoo
Siab -Tsub Muaj Zog:Molybdenum cov ntsiab lus muab lub zog tensile zoo heev thiab nkag siab tsis kam ntawm qhov kub siab.
Corrosion Resistance:Chromium cov ntsiab lus txhim khu kev tiv thaiv oxidation thiab corrosive media, nrog rau qhov chaw qaub.
Weldability:Zoo weldability ua rau nws haum rau fabricating complex Cheebtsam xws li cov hlab ntsha thiab piping.
Tus nqi -Kev ua tau zoo:Kev sib npaug zoo ntawm kev ua tau zoo thiab tus nqi rau cov xwm txheej nruab nrab, muab tus nqi qis dua siab dua - qib alloys.
Kev Ua Haujlwm Nruab Nrab:Qhov zoo tshaj plaws rau cov ntawv thov uas tsis muaj qhov xwm txheej tsis tshwm sim tab sis kev ntseeg siab yog qhov tseem ceeb, nrog rau cov cuab yeej tshwj xeeb (lub zog tensile qis dua Chav Kawm 2) rau cov kev xav tau no.
Thov kom muaj kev tshaj lij rau ASTM A387 Qib 12 Chav Kawm 1 los ntawm GNEE Steel.
ASTM A387 yog dab tsi?
Lub siab zoo chrome molybdenum alloy steel phaj npaj tshwj xeeb rau kev siv hauv weldable carbon steel siab hlab ntsha ntawm qhov kub siab. Ntxiv molybdenum muab cov khoom siv kub tensile zog thiab chromium muab kev txhim kho corrosion kuj.
ASTM A387 sib npaug li cas?
Ntawm cov ASTM A387 Qib 22 sib npaug steel qib, SA387 Qib 22, 10CrMo9-10 yog nrov dua li lwm yam sib npaug. SA387 Qib 22 steel yog raws li ASME SA387 / SA387M tus qauv. Kev ua haujlwm tshuaj lom neeg thiab kev ua haujlwm ntawm SA387 Qib 22 steel yuav luag zoo ib yam nrog ASTM A387 Qib 22 steel.