SA 537 Chav Kawm 2yog cov pa roj carbon-manganese steel phaj tshav kub- kho (quenched thiab tempered) rau kev siv lub nkoj siab. Nws muaj zog zoo, toughness, thiab weldability, dav siv nyob rau hauv cov roj, roj, thiab petrochemical kev lag luam nyob rau hauv nruab nrab mus rau hnyav kev pab cuam.
Ntiaj teb no sib npaug
Nyiv (JIS):G3115 SPV490 (los yog SPV36).
Teb chaws Europe (EN):TS EN 10028-3 P460NH
Lub teb chaws Yelemees (DIN):17155 19Mn6.
Mechanical Properties ntawm ASME SA537 Chav Kawm 2
| Tawm tswv yim (MPa) | Tensile (MPa) | Elongation A50 hli | Elongation A200 hli | Thickness |
|---|---|---|---|---|
| 415 | 550/690 | 22% | - | < 65 |
| 380 | 515/655 | 22% | - | >65 <100 |
| 315 | 485/620 | 20% | - | >100 < 150 |
Tshuaj muaj pes tsawg leeg ntawm ASME SA537 Chav Kawm 2
| C | 0.24 |
| Si | 0.15/0.50 |
| Mn < 40mm |
0.70/1.35 |
| Mn >40 hli |
1.00/1.60 |
| P | 0.035 |
| S | 0.035 |
| Cr | 0.25 |
| Mo | 0.80 |
| Ni | 0.25 |
| Cu | 0.35 |
Cov ntawv thov tseem ceeb
Roj, Roj thiab Petrochemical Kev Lag Luam: Dav siv dav hauv cov cuab yeej tseem ceeb xws li tuab- cov phab ntsa reactors rau hydrocracking / hydrotreating, fractionating towers thiab distillation towers. Kuj tseem siv tau rau siab - cov kav dej siab thiab cov kav dej taub hau, tiv thaiv kev yaig los ntawm siab - siab hydrocarbon media thiab kub hloov pauv cuam tshuam thaum lub sij hawm roj- kev tshawb nrhiav roj, kev thauj mus los thiab kev ua kom zoo.
Fais fab Generation Systems: Tsim nyog rau cov khoom tseem ceeb xws li siab - lub nruas nruas thiab cov khoom siv dej tso cua sov hauv cov chaw siv hluav taws xob thermal. Nws kuj tseem tuaj yeem siv rau kev tiv thaiv theem nrab thiab kev tiv thaiv kev tiv thaiv ntawm me me modular nuclear reactors, tswj cov khoom siv hluav taws xob ruaj khov nyob rau hauv siab - qhov kub thiab txias ntawm qhov chaw hluav taws xob.
Cryogenic cia thiab thauj:Vim muaj qhov ua tau zoo heev -kub toughness, nws yog siv los tsim LNG cia tso tsheb hlau luam, low-kub thauj nkoj thiab API 650/620 txheem cia tanks, tiv thaiv brittle fracture txaus ntshai nyob rau hauv qis -kub media cia thiab tsheb thauj mus los.
Boilers thiab Presses Vessels: Cov khoom siv tseem ceeb rau fusion-welded siab hlab ntsha thiab boilers, siv los khaws thiab thauj siab - cov pa roj thiab cov kua dej, ua kom cov khoom sib khi thiab cov qauv ruaj khov nyob rau hauv nruab nrab mus rau qhov kub thiab txias.
Offshore Engineering: Siv nyob rau hauv offshore platforms thiab arctic pipelines, adapting rau hnyav marine ib puag ncig nrog kev kub siab thiab tsis kub.
Cov Cai Thov
Mechanical Property Requirements: Tawm lub zog Ntau dua lossis sib npaug rau 415MPa, tensile zog 550-690MPa, elongation Ntau dua lossis sib npaug li 22%. Charpy V-notch impact test yog yuav tsum tau (xws li, Ntau tshaj lossis sib npaug ntawm 20J ntawm -45 degree), ua raws li ASME BPVC Tshooj VIII.
Khoom siv thiab kev ua raws cai: Yuav tsum ua raws li ASME SA 537 / SA 537 M tus qauv. Cov tshuaj muaj pes tsawg leeg yog tswj nruj me ntsis (C Tsawg dua lossis sib npaug rau 0.24%, P / S Tsawg dua lossis sib npaug rau 0.035% txhua), nrog rau kev kuaj ultrasonic ib ASME SA-578 Chav Kawm 1 kom tsis txhob muaj laminations.
Kev khiav hauj lwm ib puag ncig txwv：Suitable for temperatures from -68°C (plate thickness ≤65mm) to high-temperature environments with cyclic loading and thermal stress, not applicable to ultra-high temperature (>500 degree) los yog muaj zog corrosion ib puag ncig tshaj nws qhov kev tiv thaiv ntau yam.
Fabrication Requirements:Vuam yuav tsum tau preheating (95-150 degree) thiab post-weld heat treatment (PWHT) nrog low-hydrogen electrodes (xws li AWS E7018) los tiv thaiv hydrogen cracking. Machinability yog haum rau hardness 137-149 HB.
Dimension thiab Delivery Conditions: Common thickness 6-150mm, dav mus txog 4000mm, ntev mus txog 18000mm. Xa nyob rau hauv quenched thiab tempered (Q + T) lub xeev los xyuas kom meej qhov zoo toughness thiab ductility.
SA537CL2 Qhov zoo
Superior Mechanical Performance: Xa hauv Q + T lub xeev nrog lub zog tawm los Ntau dua lossis sib npaug ntawm 415MPa thiab tensile lub zog 550-690MPa, nws muaj cov txheej txheem siab rigidity thiab load-bearing muaj peev xwm, txuam zoo heev ductility (elongation Ntau dua los yog sib npaug rau 22%) kom tsis txhob nkig tawg nyob rau hauv dynamic load.
Tshwj xeeb qis-Tsub Toughness: Passes Charpy V-notch impact test (Ntau dua lossis sib npaug rau 20J ntawm -45 degree), tswj kev ruaj khov ntawm qhov kub qis qis mus rau -68 degree, haum rau cryogenic cia thiab arctic engineering daim ntawv thov yam tsis muaj kev ua haujlwm degradation.
Zoo heev Weldability & Fabricability: Tswj cov pa roj carbon tsawg thiab cov ntsiab lus impurity (P / S Tsawg dua lossis sib npaug ntawm 0.035% txhua) txo qhov kev pheej hmoo ntawm kev sib tsoo; ua tau raws li tus qauv qis- cov txheej txheem hydrogen vuam, thiab hloov tau rau qhov txias / kub ua rau cov thicknesses sib txawv, ua tau raws li kev xav tau ntawm cov khoom siv hauv nkoj.
Txhim khu kev ruaj ntseg:Strict ASME SA-578 Chav Kawm 1 ultrasonic tshuaj xyuas kom tsis muaj lamination teeb meem; resists cyclic thermal stress thiab nruab nrab erosion, tuav ntev - lub sij hawm structural kev ncaj ncees nyob rau hauv siab - siab, high-temperature thiab alternating kub ua hauj lwm ib puag ncig.
Standardized & Traceable Zoo: Ua raws li ASME SA537 Chav Kawm 2 tus qauv, nrog kev tswj hwm cov tshuaj muaj pes tsawg leeg thiab cov txiaj ntsig kev kho cua sov, kom ntseeg tau tias kev ua haujlwm zoo ib yam thiab ua tiav cov txiaj ntsig zoo rau kev lag luam loj.
Yog tias koj muaj qhov yuav tsum tau ua rau SA537 Chav Kawm 2, peb zoo siab tos txais koj qhov kev nug. GNEE tuav cov khoom lag luam loj uas feem ntau siv cov qib siab zog steel rau koj xaiv.Rau cov ncauj lus kom ntxaws txhua yam khoom, tshuaj lom neeg muaj pes tsawg leeg, thiab cov ntaub ntawv kev, nrog rau cov qauv dawb, thov hu rau peb lub Hoobkas tam sim ntawd. Peb muab cov nqi sib tw, ruaj khov zoo, thiab kev pabcuam tshaj lij. Email: beam@gneesteelgroup.com.
Dab tsi yog cov tshuaj tseem ceeb ntawm SA 537 Chav Kawm 2?
Cov ntsiab lus tseem ceeb muaj xws li carbon (0.18-0.25%), manganese (1.00-1.60%), phosphorus (max 0.035%), sulfur (max 0.035%), silicon (0.15-0.40%), nickel (max 0.25%), chromium (max 0.25%), chromium (max.
Cov txheej txheem kho cua sov dab tsi yuav tsum tau ua rau SA 537 Chav Kawm 2?
SA 537 Chav Kawm 2 yuav tsum tau ua kom quenching thiab tempering (Q&T) kev kho cua sov. quenching yuav tsum ceev ceev los ntawm saum toj no lub austenitizing kub, ua raws li los ntawm tempering ntawm ib tug tswj kub kom txo brittleness thiab optimize toughness.
Dab tsi yog qhov txawv ntawm SA 537 Chav Kawm 1 thiab Chav Kawm 2?
Qhov sib txawv tseem ceeb nyob hauv lub zog: SA 537 Chav Kawm 2 muaj cov txiaj ntsig siab dua thiab lub zog tensile ntau dua li Chav Kawm 1. Chav Kawm 2 tau txais kev kho cua sov nruj dua, ua rau nws tsim nyog rau kev xav tau ntau dua thiab cov khoom siv thauj khoom.
Cov ntawv thov twg yog SA 537 Chav Kawm 2 feem ntau siv rau?
SA 537 Chav Kawm 2 yog dav siv nyob rau hauv cov hlab ntsha siab, boilers, cia tso tsheb hlau luam, thiab reactor hlab ntsha nyob rau hauv cov roj refining, gas processing, petrochemical, thiab fais fab kev lag luam, tshwj xeeb tshaj yog rau nruab nrab mus rau siab - cov kev pab cuam siab.
Qhov kev pabcuam kub siab tshaj plaws rau SA 537 Chav Kawm 2 yog dab tsi?
Qhov siab tshaj plaws kev pabcuam kub rau SA 537 Chav Kawm 2 yog kwv yees li 482℃(900℃F). Tshaj qhov kub no tuaj yeem degrade nws cov khoom siv kho tshuab, cuam tshuam cov qauv kev ncaj ncees hauv kev siv lub nkoj siab.
Puas yog SA 537 Class 2 weldable?
Yog lawm, SA 537 Chav Kawm 2 yog cov khoom siv tau zoo heev. Preheating kom raug (feem ntau yog 93-204 degree) thiab tom qab vuam kub kho (PWHT) raug pom zoo kom tiv thaiv kom tsis txhob txias tawg thiab txo qhov kev ntxhov siab, ua kom lub suab vuam pob qij txha.
Dab tsi yog qhov thickness ntau muaj rau SA 537 Class 2 daim hlau?
SA 537 Class 2 daim hlau feem ntau muaj nyob rau hauv thicknesses ntawm 6 hli mus rau 200 hli (0.25 rau 8 nyob rau hauv). Cov phaj tuab tuaj yeem xav tau kev kho cua sov tshwj xeeb kom ntseeg tau tias cov khoom siv kho tshuab tsis sib xws thoob plaws hauv -section.
Puas yog SA 537 Chav Kawm 2 xav tau tom qab-weld heat treatment (PWHT)?
Yog lawm, PWHT feem ntau xav tau rau SA 537 Chav Kawm 2 tom qab vuam. Nws suav nrog cua sov lub vuam mus rau 593-649℃(1100-1200℃F) thiab tuav rau lub sijhawm tshwj xeeb los txo cov kev ntxhov siab thiab txhim kho weld toughness.
Dab tsi yog qhov hardness txwv rau SA 537 Chav Kawm 2?
Qhov siab tshaj plaws Brinell hardness (HB) rau SA 537 Chav Kawm 2 yog 235. Kev ntsuas hardness yog ua los xyuas qhov ua tau zoo ntawm kev kho cua sov thiab xyuas kom cov khoom tsis muaj brittleness ntau dhau.
Dab tsi yog qhov tsawg kawg nkaus tawm lub zog ntawm SA 537 Chav Kawm 2?
Qhov tsawg kawg nkaus tawm lub zog ntawm SA 537 Chav Kawm 2 yog 345 MPa (50,000 psi). Lub zog siab tawm los no ua kom cov khoom tuaj yeem tiv taus siab thiab thauj khoom yam tsis muaj deformation mus tas li hauv kev ua haujlwm siab ntawm cov hlab ntsha.