ASTM A537 Qib 2npog carbon-manganese-silicon siab nkoj daim hlau siv nyob rau hauv welded boilers thiab siab hlab ntsha uas xav tau zoo dua toughness ntawm qis kub. Cov hlau yog muab nyob rau hauv lub quenched thiab tempered mob, muab siab zog thiab toughness tshaj li cov pa roj carbon zoo tib yam. Nws muaj qhov zoo weldability thiab txhim khu kev qha kev ua tau zoo nyob rau hauv nruab nrab mus rau siab siab thiab kub, ib yam ntawm cov roj, roj, petrochemical, thiab hluav taws xob daim ntawv thov. Cov kev xaiv hauv chav kawm qhia txog cov khoom siv kho tshuab tshwj xeeb, suav nrog qib zog thiab kev cuam tshuam los tiv thaiv kev tawg tawg.
Tshuaj muaj pes tsawg leeg ntawm ASTM A537 Chav Kawm 2
|
Lub ntsiab |
Kev sib xyaw (%) |
|---|---|
|
Cov pa roj carbon (C) |
0.24 max |
|
Manganese (Mn) |
0.70-1.35 (≤40mm thickness) 1.00-1.60 (>40 hli thickness) |
|
Phosphorus (P) |
0.035 max |
|
Sulfur (S) |
0.035 max |
|
Silicon (Si) |
0.15-0.50 |
|
Copper (Cu) |
0.35 max (yog tias muaj) |
|
Nickel (Ni) |
0.25 max (yog tias muaj) |
|
Chromium (Cr) |
0.25 max (yog tias muaj) |
|
Molybdenum (hli) |
0.08 max (yog tias muaj) |
Mechanical Properties ntawm ASTM A537 Chav Kawm 2
|
Khoom |
Tus nqi |
|---|---|
|
Tensile zog |
80-100 ksi (550-690 MPa) |
|
Yield zog |
60 ksi (415 MPa) min (≤65mm) 55 ksi (380 MPa) min (>65-100mm) 46 ksi (315 MPa) min (>100-150 hli) |
|
Elongation (hauv 50mm) |
22% min (≤100mm) 20% min (>100 hli) |
|
Kev txo qis hauv cheeb tsam |
Tsis tau teev tseg, feem ntau siab |
daim ntawv thov
Petrochemical & Refining
Refining txheej txheem hauv 2026 cia siab rau A537 Chav Kawm 2 rau kev tsim cov khoom hnyav- phab ntsa reactors siv hauv hydrocracking thiab hydrotreating, qhov twg cov hlau yuav tsum nyob ruaj khov nyob rau hauv siab - siab hydrogen thiab siab kub. Nws kuj tseem yog ib qho tseem ceeb rau cov loj - nplai fractionating kab thiab distillation yees; nws lub zog siab -rau- qhov hnyav piv ua kom yooj yim rau kev thauj mus los ntawm kev nqa thiab txhim kho cov ntu loj loj ua ntej. Tsis tas li ntawd, cov hlau tau nquag ua haujlwm hauv siab - cov kav dej siab, suav nrog cov manifolds thiab loj - taub hau taub hau, kom ntseeg tau tias cov dej ntws tawm - pov thawj kev ua tau zoo nyob rau hauv kev ua haujlwm zoo hauv lub voj voog.
Power Generation (Pauv & Nuclear)
Nyob rau hauv thermal fais fab nroj tsuag, A537 Chav Kawm 2 ua cov khoom tseem ceeb rau siab -sab nruas thiab boilers, tswj thermal expansion thiab sab hauv siab cycles zoo dua li cov qauv carbon qib. Nyob rau hauv lub nuclear sector-tshwj xeeb tshaj yog rau Me Me Modular Reactors (SMRs) tau txais traction nyob rau hauv 2026- nws tau nce ntxiv rau cov hlab ntsha nruab nrab thiab kev tiv thaiv kev tiv thaiv vim nws qhov kev ua tau zoo nyob rau hauv irradiation. Cov khoom siv kuj pom tau siv dav hauv cov khoom siv hluav taws xob sib txawv, muab qhov tsim nyog ruaj khov rau cov ntawv tuab tuab thiab cov plhaub hauv cov khoom siv dej muaj peev xwm siab thiab cov condensers.
Kev Lag Luam Tshuaj & Kev Ua Haujlwm
Kev lag luam tshuaj siv A537 Chav Kawm 2 rau autoclaves thiab agitated cov hlab ntsha uas tau ua haujlwm ntau zaus, qhov twg cov khoom ua rau qaug zog ua kom lub neej ntev kev pab cuam txawm tias qhov kub thiab txias hloov pauv. Nws yog qhov tseem ceeb sib npaug rau cov khoom siv phom sij thauj khoom, tsim cov tub ntxhais ntawm ISO tank ntimthiab pressurized rail tsheb. Nws qhov tshwj xeeb cuam tshuam rau kev tiv thaiv yog qhov tseem ceeb ntawm kev tswj hwm rau cov tsheb thauj mus los no, muab qhov tseem ceeb ntawm kev nyab xeeb tsis zoo los tiv thaiv kev puas tsuaj los tiv thaiv tsis ua hauj lwm thaum muaj xwm txheej kev thauj mus los.
Cryogenic & Tsawg-Tub kub Cia
Rau nruab nrab -ntau cov ntawv thov cryogenic, A537 Chav Kawm 2 yog tus qauv kev lag luam rau LPG (Liquefied Petroleum Gas), ethane, thiab ammonia cia, tuav zoo heev tsis zoo ntawm qhov kub thiab txias li -52℃(-60℃F). Thaum ultra-kub qis LNG yuav tsum tau npib tsib xee- alloy steels, A537 Class 2 muab cov txiaj ntsig zoo thiab muaj txiaj ntsig zoo rau kev lag luam roj liquefied dav dav. Tshaj li kev khaws cia, nws tau siv dav hauv Arctic engineering, qhov twg nws yog siv rau cov khoom siv mining thiab cov khoom siv hluav taws xob hauv cov cheeb tsam sub-zero xws li North Slope los tiv thaiv kev tawg ntawm lub ntiaj teb cov huab cua hnyav tshaj plaws.
Thov kom muaj kev tshaj lij rau ASTM A537 Chav Kawm 2 los ntawm GNEE Steel.
ASTM A537 Chav Kawm 2 yog dab tsi?
ASTM A537 Chav Kawm 2 yog ib qho kev qhia tshwj xeeb rau carbon-manganese-silicon steel daim hlau siv hauv cov hlab ntsha thiab cov boilers, yuav tsum tau txhim kho toughness ntawm qis kub.
Nyob rau hauv dab tsi yog A537 Chav Kawm 2 feem ntau muab?
Nws yog feem ntau muab nyob rau hauv quenched thiab tempered mob kom ua tau siab zog thiab toughness.