ASME SA387 Qib 12 Chav Kawm 1yog ib qho chromium-molybdenum alloy steel phaj tsim los siv rau hauv cov hlab ntsha thiab cov boilers ua haujlwm nyob rau hauv qhov kub siab, Cov khoom no sib txuas cov corrosion kuj ntawm chromium nrog lub siab zog thiab kub tsis kam ntawm molybdenum. Nws belongs rau tsev neeg ntawm cov hlau alloy uas tau teev tseg raws li ASME SA387 thiab ASTM A387 tus qauv.
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SA387 Gr.12 CL.1Tshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
Cr |
Mo |
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SA387 Gr.12 Cl.1 |
0.04-0.17 |
0.13-0.45 |
0.35-0.73 |
0.035 |
0.035 |
0.74-1.21 |
0.40-0.65 |
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Qib |
SA387 Gr.12 CL.1Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SA387 Gr.12 Cl.1 |
mm |
Min Mpa |
Mpa |
Tsawg% |
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t Tsawg dua lossis sib npaug li 50 |
230 |
380-550 |
22 |
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50<> |
- |
- |
18 |
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Sib npaug steel qib SA387 Gr.12 Cl.1 |
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Teb chaws Europe |
Belgium |
Lub teb chaws Yelemees |
Fabkis |
Ltalis |
Sweden |
Is Nrias teb |
Nyiv |
U.K |
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621g ua. A, B |
Daim ntawv thov
Boiler Cheebtsam: Cov khoom tseem ceeb xws li boiler nruas thiab headers uas nyob ntev - lub sij hawm thermal cycling thiab siab.
Lub nkoj siab: Siab-cov nkoj thauj khoom rau khaws cia thiab thauj khoom siab- kub thiab siab- siab tshaj tawm.
Thaum tshav kub kub Exchangers: Cov khoom tseem ceeb rau kev hloov hluav taws xob zoo hauv cov txheej txheem tshuaj thiab roj refining.
Roj Refineries: Cov cuab yeej tseem ceeb hloov mus rau qhov hnyav siab - kub, siab - qhov chaw ua kom zoo dua qub.
Gas Processing Units: Cov khoom siv rau kev ua kom huv huv, lub cev qhuav dej thiab kev sib cais.
Tshuaj Reactors: Cov nkoj rau kev ua haujlwm siab -kub thiab siab - cov tshuaj tiv thaiv siab.
Thermal fais fab nroj tsuag: Cov khoom tseem ceeb txhawb kev ua haujlwm ruaj khov ntawm cov khoom siv hluav taws xob thermal.
Vim li cas thiaj xaiv peb:
Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
Koj tuaj yeem tau txais cov khoom hloov pauv, zeb xa khoom nrog txo lub sijhawm tsim khoom.
Peb tau mob siab rau peb cov neeg siv khoom. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
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.Dab tsi yog SA 387 Qib 12 CL 1 khoom?
SA 387 Qib 12 Chav Kawm 1 yog chromium-molybdenum (Cr-Mo) alloy steel phaj, teev los ntawm ASME (American Society of Mechanical Engineers) siv rau hauv welded boilers, siab hlab ntsha, thiab lwm yam khoom siv tsim los rau siab kub kev pab cuam, muab zoo corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv cov roj thiab roj daim ntaub ntawv. "Qib 12" qhia txog nws cov ntsiab lus Cr/Mo (nyob ib ncig ntawm 1% Cr, 0.5% Mo), thaum "Class 1" qhia lub zog tensile qis thiab lub zog tawm los piv rau Chav Kawm 2, nrog rau cov khoom siv tshwj xeeb xws li lub zog tawm ntawm 230 MPa (33 ksi).
2.Dab tsi yog qhov txawv ntawm Class 1 thiab Class 2 steel?
Chav kawm 1 yog normalized, nrog lub zog tensile ntawm 70-90 ksi thiab qhov tsawg kawg nkaus tawm los ntawm 50 ksi. Chav Kawm 2 muaj lub zog tensile ntawm 80-100 ksi thiab lub zog tsawg kawg nkaus ntawm 60 ksi.