SA537 Chav Kawm 2(tseem hu ua ASME SA537 Cl 2 lossis ASTM A537 Cl 2) yog cov cua sov- kho, carbon-manganese-silicon steel phaj tshwj xeeb tsim los rau fusion-welded siab hlab ntsha thiab kev siv cov qauv. Nws yog tus cwj pwm los ntawm cov txiaj ntsig siab dua thiab lub zog tensile piv rau Chav Kawm 1, ua tiav los ntawm Quenched thiab Tempered (Q&T) txheej txheem kev kho cua sov.
Mechanical Properties
|
Qib |
Yield zog |
Tensile zog |
Elongation hauv 2 " |
|---|---|---|---|
|
SA537 Chav Kawm 2 |
60 |
80 - 100 |
22 |
Tshuaj muaj pes tsawg leeg
|
C |
Mn 1) |
P 2) |
S 2) |
Si |
Cu |
Ni 1) |
Cr |
Mo |
|---|---|---|---|---|---|---|---|---|
|
0.24 |
1.60 |
0.020 |
0.010 |
0.50 |
0.35 |
0.25 |
0.25 |
0.080 |
Carbon sib npaug
|
Thickness (hauv) |
0.375 - 2.00 |
|---|---|
|
Yam CET (wt%) |
0.33 |
|
CEV (wt%) |
0.45 |
Formability zog
|
Thickness (hauv. [mm]) |
Khoov Axis Perpendicular rau Rolling Direction Hauv Radius, R (min.) |
Khoov Axis Perpendicular rau Rolling Direction Die Width, W (min.) |
Khoov Axis Parallel rau Rolling Direction Hauv Radius, R (min.) |
Khoov Axis Parallel rau Rolling Direction Die Width, W (min.) |
|---|---|---|---|---|
|
0.375 – 1.00 [9.5 – 25.4] |
1.5t |
8t |
2.25t |
10t |
|
1.00 – 2.00 [25.4 – 50.1] |
2.0t |
8t |
3.0t |
10t |
Cov ntawv thov tseem ceeb
Roj, Roj thiab Petrochemical Kev Lag Luam: 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 feedwater rhaub hauv thermal fais fab chaw nres tsheb. 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 qhov chaw thiab hluav taws xob ib puag ncig.
Cryogenic cia thiab thauj:Vim yog qhov zoo heev uas tsis tshua muaj- qhov kub thiab txias, nws yog siv los tsim LNG cia tso tsheb hlau luam, qis- cov nkoj thauj khoom kub thiab API 650/620 tus qauv cia tso tsheb hlau luam, tiv thaiv kev pheej hmoo tawg tawg 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. Muab tso rau hauv quenched thiab tempered (Q + T) lub xeev kom ntseeg tau tias qhov zoo tshaj plaws toughness thiab ductility.
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.
SA 537 Chav Kawm 2 yog dab tsi?
SA 537 Chav Kawm 2 yog cov pa roj carbon -manganese steel phaj tshav kub- kho (quenched thiab tempered) rau kev siv lub nkoj siab. Nws muaj lub zog zoo, toughness, thiab weldability, dav siv hauv cov roj, roj, thiab petrochemical kev lag luam nyob rau hauv nruab nrab mus rau qhov kev pabcuam hnyav.
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.
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.
Lub zog tensile ntau ntawm SA 537 Chav Kawm 2 yog dab tsi?
SA 537 Chav Kawm 2 muaj lub zog tensile ntau ntawm 485-655 MPa (70,000-95,000 psi). Qhov ntau yam no sib npaug lub zog thiab ductility, ua rau nws tsim nyog rau cov kev pabcuam hnyav uas yuav tsum tau ua kom muaj kev txhim khu kev qha.
Yuav ua li cas kho cua sov txheej txheem 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.
Qhov kev pabcuam 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.
Cov qauv twg tswj hwm SA 537 Chav Kawm 2?
SA 537 Chav Kawm 2 yog tswj hwm los ntawm ASTM A537 tus qauv (American Society for Testing and Materials). Tus qauv no qhia txog qhov yuav tsum tau ua rau cov cua sov-kho carbon-manganese steel daim hlau rau cov hlab ntsha siab thiab boilers.
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.