Puas yog ASME SA537 Class 2 carbon steel?
Yog lawm, ASME SA537 Chav Kawm 2yog cov cua sov-kho carbon-manganese-silicon steeltsim los rau siab -lub zog, kev siv lub nkoj siab. Nws tsis yog qis- alloy steel tab sis yog ib qho tshwj xeeb carbon steel uas ua tiav cov txiaj ntsig siab thiab tensile lub zog los ntawm quenching thiab tempering.
ASME SA537 Chav Kawm 2 yog qib siab -kev ua tau zoo carbon-manganese-silicon steel phaj qib tsim los rau fusion-welded siab hlab ntsha uas xav tau lub zog zoo tshaj plaws. Cov yam ntxwv ntawm Chav Kawm 2 yog nws txoj kev kho cua sov uas yog Quenched thiab Tempered (Q&T), uas muaj cov cua sov ntawm cov hlau mus rau qhov kub thiab txias, ua kom txias sai rau hauv cov kua nruab nrab, thiab rov ua kom sov kom nce ductility. Cov txheej txheem no tso cai rau cov khoom siv los tiv thaiv cov kev ntxhov siab sab hauv thiab cov kev ntxhov siab sab nraud ntau dua li cov qauv zoo li qub, ua rau nws qhov tseem ceeb rau kev hnyav - phab ntsa ntawm cov hlab ntsha hauv lub zog.
Cov yam ntxwv tseem ceeb
Mechanical Resilience:Ua kom pom kev ua haujlwm siab rau deformation nyob rau hauv huab cua hydrostatic loads.
Tswj Hardness:Lub tempering theem ua kom cov hlau tsis dhau nkig, tso cai rau kev nyab xeeb dua drilling thiab tapping.
Thermal Endurance:Khaws nws cov qauv kev ncaj ncees thoob plaws ntau qhov kev ua haujlwm kub, los ntawm sub-zero mus rau nruab nrab kub.
Qib Qib
ASME: American Society of Mechanical Engineers.Qhov no qhia tau hais tias cov khoom ua raws li covASME Boiler thiab Pressure Vessel Code (BPVC), tshwj xeeb tshooj II, Ntu A.
S :Qhov no prefix qhia tias cov khoom yogpom zoo tshwj xeebsiv rau hauv ASME siab hlab ntsha kev tsim kho.
A :Cov ntsiab lusKhoom siv ferrous(hlau los yog hlau).
537 :CovStandard Specification naj npawb. Nws txheeb xyuas cov pab pawg tshwj xeeb ntawm "Tshav Kub-Tho Carbon-Manganese-Silicon Steel Phaj" npaj rau fusion-welded siab hlab ntsha.
Chav Kawm 2:Txhais covKev kho cua sov thiab qib zog.
Tsis zoo li Chav Kawm 1 (uas tsuas yog Normalized),Chav Kawm 2 yog quenched thiab Tempered (Q&T).
Sib piv: SA537 Chav Kawm 2 vs. SA387 Qib 11
Txoj kev ua kom txias:SA537 Chav Kawm 2 yogKua -quenched; SA387 Qib 11 (Cr-Mo steel) feem ntau yogNormalized thiab Tempered.
Chemical Profile:SA537 yog aCov pa roj carbon-Manganesehlau; SA387 Qib 11 yog ib qhoHlau alloymuaj chromium thiab molybdenum.
Qhov kub thiab txias:SA537 yog tsim los rauqis rau nruab nrabkub; SA387 yog tsim los rausiab -temperature/creeptsis kam nyob rau hauv refineries.
Weldability:SA537 Chav Kawm 2 yuav tsum muaj kev tswj xyuas cov cua sov; SA387 Qib 11 yuav tsum tau uaua ntej- cua sov thiab PWHTtiv thaiv kev tawg.
Cov ntawv thov siv
Natural Gas Scrubbers:Cov nkoj uas siv los tshem tawm cov impurities los ntawm siab - cov pa roj carbon monoxide siab.
Thermal Energy Storage (TES) Tanks:Loj - cov tso tsheb hlau luam loj siv hauv cov chaw tsim hluav taws xob hnub ci.
Flash Drums:Cov hlab ntsha siab siv nyob rau hauv refineries kom cais cov vapors ntawm cov kwj dej.
Submersible Decompression Chambers:Pressurized cabins siv los ntawm kev lag luam divers rau kev sib sib zog nqus- dej hiav txwv.
Carbon Capture Absorbers:Siab - nce kev lag luam kab siv los cuab CO2 emissions nyob rau hauv industrial chimneys.
Dab tsi yog sulfur ntsiab lus hauv ASME SA537 Chav Kawm 2?
Cov ntsiab lus sulfur hauv ASME SA537 Chav Kawm 2 yog txwv rau qhov siab tshaj plaws ntawm 0.035%. Sulfur tuaj yeem ua rau embrittlement, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias, yog li txo nws cov ntsiab lus yuav pab txhim kho cov hlau qhov toughness thiab cuam tshuam tsis kam. Cov ntsiab lus tsis muaj leej faj txhim kho cov khoom siv tag nrho, ua rau nws tsim nyog rau kev siv cov hlab ntsha hauv kev xav tau.
Dab tsi yog qhov elongation ntawm ASME SA537 Chav Kawm 2?
ASME SA537 Chav Kawm 2 feem ntau muaj qhov elongation tsawg kawg yog 18% hauv 8 ntiv tes (200 hli). Qhov no qhia tau hais tias cov ntaub ntawv muaj peev xwm ncav cuag thiab deform yam tsis muaj kev tawg, uas yog qhov tseem ceeb hauv kev siv cov hlab ntsha siab uas cov khoom yuav ntsib kev ntxhov siab lossis kev cuam tshuam tam sim ntawd. Qhov siab elongation no ua kom cov kav ntev thiab kev nyab xeeb hauv kev ua haujlwm hnyav.
Dab tsi yog qhov weldability ntawm ASME SA537 Chav Kawm 2?
Yog lawm, ASME SA537 Chav Kawm 2 yog vuam, tab sis yuav tsum tau saib xyuas tshwj xeeb thaum lub sijhawm vuam. Preheating ua ntej welding thiab post-weld heat treatment (PWHT) raug pom zoo kom txo tau qhov kev pheej hmoo ntawm kev tawg thiab kev ntxhov siab. Cov ntsiab lus qis carbon tsawg hauv qib steel no pab txhim kho nws cov weldability piv rau cov pa roj carbon ntau dua.
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SA537 chav kawm 2Tshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Mn |
P |
S |
Si |
Cu |
Ni |
Cr |
Mo |
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|
SA537 chav kawm 2 |
0.24 |
0.92-1.72 |
0.035 |
0.035 |
0.13-0.55 |
0.38 |
0.28 |
0.29 |
0.09 |
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Qib |
SA537 chav kawm 2 Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SA537 chav kawm 2 |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
65 |
415 |
550-690 |
22 |
|
|
65-100 |
380 |
515-655 |
20 |
|
|
100-150 |
315 |
485-620 |
- |
|
1. Cov ntsiab lus carbon hauv ASME SA537 Class 2 yog dab tsi?
Cov ntsiab lus carbon hauv ASME SA537 Chav Kawm 2 feem ntau yog li ntawm 0.12% txog 0.20%. Cov ntsiab lus qis carbon no ua kom zoo dua weldability thiab txo qhov kev pheej hmoo ntawm kev tawg thaum lub sijhawm vuam. Qhov sib npaug ntawm lub zog thiab ductility ua rau nws tsim nyog rau cov hlab ntsha siab thiab cov khoom tseem ceeb uas raug rau qhov siab thiab qhov kub thiab txias, ua kom muaj kev ntseeg siab thiab ua haujlwm ntev hauv kev ntxhov siab.
2. Lub zog tensile ntawm ASME SA537 Chav Kawm 2 yog dab tsi?
Lub zog tensile ntawm ASME SA537 Chav Kawm 2 feem ntau yog li ntawm 70 ksi (485 MPa) txog 90 ksi (620 MPa). Qhov ntau yam no tso cai rau cov khoom siv los tiv thaiv kev ntxhov siab ntawm cov neeg kho tshuab thaum tuav nws cov qauv kev ncaj ncees. Cov hlau yog tsim los siv rau hauv kev siv xws li cov hlab ntsha siab, qhov xav tau lub zog siab los tswj lub siab sab hauv yam tsis ua haujlwm.
3. Dab tsi yog sulfur ntsiab lus hauv ASME SA537 Chav Kawm 2?
Cov ntsiab lus sulfur hauv ASME SA537 Chav Kawm 2 yog txwv rau qhov siab tshaj plaws ntawm 0.035%. Sulfur tuaj yeem ua rau embrittlement, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias, yog li txo nws cov ntsiab lus yuav pab txhim kho cov hlau qhov toughness thiab cuam tshuam tsis kam. Cov ntsiab lus tsis muaj leej faj txhim kho cov khoom siv tag nrho, ua rau nws tsim nyog rau kev siv cov hlab ntsha hauv kev xav tau.
4. Cov kev lag luam twg siv ASME SA537 Chav Kawm 2?
ASME SA537 Chav Kawm 2 feem ntau siv hauv kev lag luam xws li petrochemical, roj thiab roj, tsim hluav taws xob, thiab kev ua tshuaj lom neeg. Nws yog feem ntau siv nyob rau hauv fabrication ntawmcov hlab ntsha siab, kub exchangers, reactors, thiab lwm yam khoom siv uas yuav tsum tiv taus qhov kub thiab txias. Cov ntaub ntawv toughness, lub zog, thiab zoo weldability ua rau nws ib tug nrov kev xaiv nyob rau hauv cov sectors no.
5. Dab tsi yog txheej txheem kev kho cua sov rau ASME SA537 Chav Kawm 2?
ASME SA537 Chav Kawm 2 tau dhau los ua cov txheej txheem quenching thiab tempering cua sov. Cov hlau yog rhuab mus rau qhov kub siab, ces txias sai heev (quenched), thiab tempered ntawm qhov kub thiab txias. Cov txheej txheem no txhim kho cov hlau lub zog, toughness, thiab tsis kam mus rau nkig tawg, ua rau nws tsim nyog rau cov hlab ntsha siab thiab lwm yam tseem ceeb uas yuav tsum tau tiv taus siab thiab kub.
6. Dab tsi yog cov ntsiab lus phosphorus hauv ASME SA537 Chav Kawm 2?
Cov ntsiab lus phosphorus hauv ASME SA537 Chav Kawm 2 yog txwv rau qhov siab tshaj plaws ntawm 0.035%. Phosphorus tuaj yeem cuam tshuam tsis zoo rau cov hlau qhov tawv, tshwj xeeb tshaj yog nyob rau qhov kub thiab txias. Los ntawm kev ua kom cov phosphorus qis qis, ASME SA537 Chav Kawm 2 xyuas kom meej tias cov khoom tseem tawv thiab tiv taus cov pob txha tawg, uas yog qhov tseem ceeb rau cov hlab ntsha siab uas siv nyob rau hauv qis - qhov kub thiab txias.
7. Dab tsi yog cov ntsiab lus ntawm manganese hauv ASME SA537 Chav Kawm 2?
Cov ntsiab lus manganese hauv ASME SA537 Chav Kawm 2 feem ntau yog li ntawm 0.60% txog 1.35%. Manganese yog ib qho tseem ceeb alloying ntsiab uas txhim khu lub zog, toughness, thiab hardenability. Nws pab cov khoom siv ua haujlwm zoo dua thaum muaj kev ntxhov siab, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj kev kub ntxhov thiab kev ntxhov siab txhua yam, xws li hauv cov hlab ntsha thiab cov khoom siv hluav taws xob.
Yog xav paub ntxiv txog GNEE cov khoom siv hlau, tiv tauj peb ntawm info@gneesteels.com. Peb tos ntsoov yuav ua haujlwm nrog koj.
