ASTM A612 / ASME SA612 yog dab tsi?
ASTM A612 / ASME SA612yog ahwm siab -lub zog qis- alloy (HSLA) siab nkoj zoo (PVQ) steel phajtshwj xeeb tsim los rau cov hlab ntsha siab, cov reactors, thiab cov khoom siv hluav taws xob sib hloov ua haujlwm hauv nruab nrab - mus rau - qhov kub thiab txias (-40℃txog 425 degree) nyob rau hauv siab siab (txog 21 MPa). Nws yog ibtua carbon-manganese- silicon steelnrog zoo -grained microstructure uas muab lub zog tshwj xeeb - mus rau - qhov hnyav piv thiab qis - kub toughness.
- Cov qauvDaim ntawv pov thawj: ASTM A612 / A612M (thoob ntiaj teb) thiab ASME SA-612 (cov ntawv pov thawj lub nkoj siab)
- PVQ txhais: Pressure Vessel Quality - ua tau raws li cov kev cai nruj rau cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov txheej txheem tsim khoom kom muaj kev nyab xeeb hauv cov ntawv thov
- Qhov tseem ceeb Advantage: 50% yield zog dua li cov qauv carbon steels (xws li, SA516 Gr.70) thaum tuav cov weldability zoo thiab toughness
Tshuaj muaj pes tsawg leeg
| Lub ntsiab | Cov ntsiab lus |
|---|---|
| Cov pa roj carbon (C) | 0.25% |
| Manganese (Mn) | 1.00-1.50% |
| Silicon (Si) | 0.15-0.50% |
| Phosphorus (P) | 0.025% |
| Sulfur (S) | 0.025% |
| Nickel (Ni) | 0.30% |
| Chromium (Cr) | 0.30% |
| Copper (Cu) | 0.35% |
| Carbon sib npaug (CE) | 0.48% |
Mechanical Properties (rau thickness Tsawg dua los yog sib npaug li 150mm)
| Khoom | Tus nqi |
|---|---|
| Yield zog (YS) | Ntau dua lossis sib npaug rau 345 MPa (50 ksi) |
| Tensile zog (TS) | 570-725 MPa (83-105 ksi) |
| Elongation (%) | Ntau dua lossis sib npaug li 22% (200mm gauge) |
| Impact Toughness (Charpy V-notch) | Ntau tshaj lossis sib npaug rau 27 J ntawm -40 degree |
| Hardness (HB) | Tsawg dua lossis sib npaug li 207 |
| Creep Resistance | Nyob ruaj khov ntawm 200-425 degree |
Cov yam ntxwv tseem ceeb
Superior Strength - rau - Qhov hnyav piv
25-30% thinner phab ntsa dua SA516 Gr.70 rau tib lub peev xwm siab
Txo cov nqi khoom siv, kev thauj mus los hnyav, thiab kev xav tau hauv lub hauv paus
Qhov zoo tshaj plaws rau qhov hnyav- daim ntawv thov rhiab heev (offshore platforms, mobile siab tanks)
Exceptional Tsawg-Tsub Ua Haujlwm
Tuav ductility thiab toughness ntawm -40℃(tus qauv) thiab txawm -45℃(hloov versions)
Tshem tawm txoj kev pheej hmoo ntawm pob txha tawg hauv cov ntawv thov cryogenic (LNG cia, kua nitrogen)
Kev lag luam-Ua Weldability
Tsawg carbon sib npaug (tsawg dua lossis sib npaug li 0.48%) tso cai rau vuam yam tsis muaj preheating rau thickness Tsawg dua los yog sib npaug rau 150mm
Tau tshaj txhua txoj kev vuam (SMAW, GMAW, GTAW)
Minimizes distortion thiab residual kev nyuaj siab, txo cov post-weld kev kho cua sov xav tau
Zoo-Grained Microstructure
ASTM A20 / A20M nplua grain yuav tsum tau (ASTM 5-8) txhim khu lub zog thiab qaug zog
Txhim khu kev tiv thaiv rau nkig tawg thiab tawg propagation
Ua kom cov khoom zoo ib yam thoob plaws lub phaj thickness
Kev xaiv kho cua sov
Standard Treatment: Normalization
Txheej txheem: Kub rau 890-940 degree, tuav 1.5-2.5 min / mm thickness, ces cua txias
Lub hom phiaj: Refines grain qauv, tshem tawm kev sib cais, txhim kho uniformity
Kev tshwm sim: Qhov zoo tshaj qhov sib npaug ntawm lub zog, toughness, thiab weldability rau feem ntau cov ntawv thov
Custom Treatments (rau cov kev xav tau tshwj xeeb)
Quenched & Tempered (Q&T): For thickness >100mm lossis siab zog xav tau (YS Ntau dua lossis sib npaug rau 400 MPa)
Kev ntxhov siab: Post-weld kev kho mob (600-650 degree) kom txo tau cov kev ntxhov siab nyob hauv cov ntawv thov tseem ceeb
Kev Kho Cryogenic: Txhim kho qis-kub toughness rau ultra-cryogenic kev pabcuam (tsawg dua lossis sib npaug rau -45 degree)
Daim ntawv thov
Cov nkoj siab
Cryogenic nkoj: LNG cia tso tsheb hlau luam, kua nitrogen / oxygen thauj (ua haujlwm ntawm -40℃txog -45 degree)
Siab -Presure Storage: CO₂ capture tanks, hydrogen cia (siab txog 21 MPa)
Petrochemical nkoj: Hydrocracker separators, cua kub kho chav tsev (temp: 150-425 degree)
Tshuaj Reactors
Hydrogenation Reactors: Petroleum residue processing, zaub roj hydrogenation (250-425 degree, 15-20 MPa)
Polymerization ReactorsPE / PP ntau lawm, epoxy resin synthesis (80-200 degree)
Alkylation ReactorsSulfuric acid / HF units (20-100 degree, corrosive ib puag ncig)
Kub Exchangers & Kab
Cryogenic Exchangers: LNG vaporizers, lub thawv txias
Petrochemical Exchangers: Plhaub-thiab-tube units, reboilers (200-350 degree)
Distillation KabCrude roj fractionation, absorption towers (txog 10 MPa)
Cov ntawv thov tshwj xeeb
Siab -cov kav xa hluav taws xob siab
Aerospace av txhawb nqa: foob pob ua ntxaij roj tso tsheb hlau luam, cryogenic kuaj chav
Nuclear auxiliary nkoj: Secondary containment, waste storage (ASME NQA-1 compliant)
GNEE STEEL - Txhim khu kev qha ntawm A612 / SA612 PVQ Steel Phaj
Founded hauv 2008,GNEE STEELtshwj xeeb hauv kev muab cov phaj hnyav thiab cov hlab ntsha siab rau cov lag luam thoob ntiaj teb.
Peb lub peev xwm ASTM A612 / ASME SA612 muaj xws li:
- Dav thickness ntau nrog customized txiav
- Ua tiav Mill Test Certificate (MTC / EN 10204 3.1)
- Kev tswj hwm kev ruaj ntseg thiab kev paub txog ASME project
- Kev tshaj lij export kev pabcuam thiab kev txhawb nqa
GNEE STEEL tau cog lus rau kev xa khoomtxhim khu kev qha, ua raws, thiab raug nqi PVQ steel kev daws teeb meemrau lub nkoj siab manufacturers thiab EPC cov neeg ua haujlwm thoob ntiaj teb.
ASTM A612 / ASME SA612 siab -lub zog PVQ steel phaj yog qhov kev xaiv zoo tshaj plaws rau kev siv lub nkoj siab xav tausiab zog, weldability zoo heev, thiab txhim khu kev qha kev ua tau zoo nyob rau hauv nruab nrab - mus rau - qhov kub thiab txias ib puag ncig. Nws qhov tshwj xeeb ua ke ntawm cov khoom ua rau nws zoo tagnrho rau LNG cia, tshuaj reactors, thiab petrochemical cov khoom uas muaj kev nyab xeeb, kev ua tau zoo, thiab tus nqi -kev ua tau zoo yog qhov tseem ceeb.
Rau cov haujlwm uas xav tau lub zog ntau dua lossis kev ua haujlwm tshwj xeeb, xav txog peb cov kev cai ua kom sov- kho qhov sib txawv lossis tshawb xyuas peb cov khoom siv ntau yam ntawm cov hlab ntsha siab xws li SA516, SA537, thiab SA387.
Hu rau GNEE Steel hnub norau koj cov kev cai ASTM A612 / ASME SA612, nrog rau kev xaiv rau kev cai tuab, ntawv pov thawj, thiab xa khoom thoob ntiaj teb.
FAQ
Dab tsi yog cov khoom siv SA 612?
carbon-manganese-silicon steel phaj
SA612 raug tua carbon-manganese-silicon steel phaj ua rau cov hlab ntsha siab. Nws cov nplej zoo ua rau nws tsim nyog siv rau hauv nruab nrab thiab qis qhov kub thiab txias qhov kev cuam tshuam qhov tseem ceeb.
Dab tsi yog qhov muaj pes tsawg leeg ntawm ASTM A612?
ASTM A612 steel phaj yog siab -lub zog qis- alloy (HSLA) steel phaj tsim rau welded siab hlab ntsha. Nws muaj cov nominal muaj pes tsawg leeg ntawm carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, thiab tooj liab.
A612 steel yog dab tsi?
ASTM A612 specification yog Standard Specification rau Siab Vessel Phaj, Carbon Steel, Siab zog, rau nruab nrab thiab qis kub kev pab cuam. ASTM A612 encompasses carbon-manganese-silicon steel daim hlau npaj rau siv nyob rau hauv welded siab hlab ntsha rau nruab nrab thiab kub kev pab cuam.
Puas yog SA612 thiab A612 Steel Phaj yog tib yam khoom? Dab tsi yog qhov txawv ntawm Core?
Lawv yog tib hom hlau phaj. ASTM A612 yog cov qauv khoom siv, thaum ASME SA612 yog qhov tsim los tom qab ASTM A612 tau muab tso rau hauv ASME Boiler & Pressure Vessel Code, tshwj xeeb rau kev tsim cov khoom siv siab -cov kabmob.
Dab tsi yog Cov Qauv Txheej Txheem rau SA612 / A612 Steel Phaj? Puas muaj qhov txawv ntawm ASTM thiab ASME Versions?
Cov qauv kev tswj hwm yog ASTM A612 / A612M thiab ASME SA612. Tsis muaj qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab ntawm ob lub qauv; qhov sib txawv tsuas yog nyob rau hauv lawv cov txheej txheem siv tau.
Dab tsi yog Cov Qib Sib npaug ntawm SA612 / A612 hauv Suav thiab European Cov Qauv? Lawv puas tuaj yeem siv los hloov pauv ncaj qha?
Cov qib sib npaug sib npaug suav nrog EN P355GH, DIN 1.0473, thiab GB Q345R. Txawm li cas los xij, lawv tsis tuaj yeem siv los ua qhov sib npaug ncaj qha. Lawv qhov kev tsim nyog yuav tsum raug lees paub raws li cov qauv tsim thiab kev pom zoo.
Dab tsi yog qhov Yield Strength thiab Tensile Strength ntawm SA612 / A612? Lawv txawv nrog txawv thicknesses?
Qhov tsawg kawg nkaus tawm lub zog ntawm SA612 yog kwv yees li 260 MPa, thiab nws lub zog tensile yog li ntawm 485-620 MPa. Raws li lub thickness nce, qhov tso cai tsawg kawg nkaus lub zog tuaj yeem txo qis me ntsis.
Dab tsi yog qhov qis -Tsuas Qhov Kev Ntsuas Hluav Taws Xob rau SA612/A612? Puas yog Cov Kev Xav Tau ntawm -40℃thiab -45℃Raws li?
Cov qauv feem ntau yuav tsum muaj kev cuam tshuam ntawm -40 degree, thaum kuaj ntawm -45℃tsis tas yuav tsum tau ua. Yog tias ib qhov project qhia txog qhov ntsuas -45 degree, yuav tsum tau kuaj xyuas qhov cuam tshuam ntxiv thiab qhia meej meej hauv daim ntawv cog lus.
Dab tsi yog qhov tsawg kawg nkaus thiab siab kawg kev pabcuam kub rau SA612/A612?
Qhov kev pom zoo qhov ntsuas kub tsawg kawg yog kwv yees li -40 degree, thiab qhov siab tshaj plaws kev khiav hauj lwm kub yog feem ntau nyob ib ncig ntawm 400 degree, nyob ntawm seb tus qauv tsim thiab kev pabcuam nruab nrab.
Dab tsi yog Carbon sib npaug ntawm ASME SA612? Puas yog Preheating yuav tsum tau rau Vuam?
Cov pa roj carbon sib npaug feem ntau yog nyob ib ncig ntawm 0.42-0.45. Preheating ntawm 50-120℃yog pom zoo rau vuam nruab nrab thiab tuab daim hlau. Cov khoom siv vuam siv feem ntau suav nrog qis-hydrogen electrodes xws li E7018 thiab E7016.
Dab tsi yog qhov niaj hnub Thickness Range ntawm SA612 / A612, thiab Dab tsi yog qhov siab tshaj plaws Customizable Thickness?
Lub thickness niaj hnub yog 6-100 hli. Qee cov hlau mills tuaj yeem muab cov thicknesses customized txog li 150 hli, raws li kev pom zoo ntawm lawv cov dov thiab kev kho cua sov.
Dab tsi yog Cov Txheej Txheem Kev Xa Khoom rau SA612 / A612?
Cov xwm txheej kev xa khoom muaj xws li As -Rolled (AR), Normalized (N), thiab Normalized + Tempered (N + T), nrog rau cov xwm txheej zoo li qub yog siv dav tshaj plaws.
Dab tsi yog Machinability ntawm SA612? Puas yog nws yooj yim rau kev tawg?
SA612 nthuav tawm kev txiav thiab khoov zoo heev. Thaum ua tiav nrog cov txheej txheem tsim nyog thiab preheating, nws tsis yog qhov ua rau tawg.
Dab tsi yog Qhov Zoo Tshaj Plaws rau Tsawg-Kev Siv Kub: SA612 lossis SA516 Gr.70?
SA612 muab kev ua haujlwm ruaj khov ntau dua hauv cov phaj tuab thiab siab - kev ntxhov siab ua haujlwm, thaum SA516 Gr.70 muab cov nqi zoo dua - ua haujlwm tau zoo hauv cov kev ua haujlwm zoo.
Q345R puas tuaj yeem siv los hloov SA612?
Q345R tuaj yeem siv los hloov pauv hauv qee qhov kev ua haujlwm tsis yog -ASME cov haujlwm. Txawm li cas los xij, kev hloov pauv tsis pom zoo rau cov phiaj xwm xa tawm lossis cov xwm txheej uas SA612 yog qhov yuav tsum tau ua los ntawm cov lus qhia tshwj xeeb.
Qhov txawv ntawm SA612 thiab SA537 Cl.2 yog dab tsi?
SA537 Cl.2 boasts lub zog ntau dua thiab qis -kev ua haujlwm kub tab sis los nrog tus nqi siab dua SA612. Nws tsim nyog rau kev ua haujlwm hnyav dua.
Puas yog SA612 Vessel Phaj haum rau LNG Cia Tank?
SA612 tsis pom zoo rau thawj LNG cia tso tsheb hlau luam ua haujlwm ntawm -162℃, tab sis nws tuaj yeem siv rau hauv LNG auxiliary systems lossis nruab nrab - mus rau qhov kub thiab txias.
Dab tsi yog Hydrogen -Induced Cracking (HIC) Resistance ntawm SA612 Steel Phaj?
Tus qauv SA612 tsis txwv HIC cov cai. Rau cov ntawv thov uas muaj leej faj- uas muaj cov xov xwm, kho cov qib qis -sulfur thiab qis-phosphorus SA612 daim hlau yuav tsum tau siv, nrog rau kev kuaj HIC.
| Lwm cov hlau phaj los ntawm GNEE | ||||
| Lub npe | Khoom siv | Specification (hli) | Tos | Lus ceeb toom |
| Clad steel phaj | P265GH+410,S355JR+410,A516Gr70+316, A537CL1+304L,Q235B+304L,Q345B+304, A516Gr70(NACE)+410,A537CL1+904L, A537CL1+316L,A516Gr70+304L,A537CL1+304 ,A516Gr70+410,A516Gr70+904L |
2-300mm (raws li phaj), 1-50mm (Composited phaj) | / | UT, AR, TMCP.Normalized, Quenched thiab Tempered, Z Direction Test, Charpy V-Ntch impact TestThe Third Party Test, Coated or Shot Blasting and Painting. |
| Tsawg Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SAG281G, SAG281G SA387Gr22, P265, P295, P355GH, Q245R(R-HIC), Q345R(R{30}}HIC) | 3 - 300 | 8650 | Normalizing, tempered, tswj dov, kub dov, Kub dov, 1st tshuaj xyuas, 2nd tshuaj ntsuam, 3rd tshuaj ntsuam |
| Siab -Plate muaj zog | WH785D/E,Q960D/E,Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched thiab tempered |
| Hnav-Resistant Phaj | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched thiab tempered |
| Choj Phaj | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Kub dov, normalized, kub dov tswj dov, quenched thiab tempered + toughness thiab brittleness |