20MnG High Pressure Cold Rolled Heat Exchanger Boiler Steel Pipe
Lus piav qhia luv luv:
GB 5310 20MnG Siab Siab Boiler Tubes Cov Lus Qhia Ceev
Kev tsim khoom: Seamless txheej txheem, Kub-tiav lossis txias-tiav.
Phab ntsa thickness (WT): 2.8mm-150mm.
Sab nraud txoj kab uas hla (OD): 23 mm - 1500 mm.
Ntev: 6M lossis ntev raws li qhov xav tau.
Xaus: Plain End, Beveled End, Treaded.
Nrog peb cov thev naus laus zis zoo li peb lub siab ntawm kev tsim kho tshiab, kev sib koom tes, cov txiaj ntsig thiab kev loj hlob, peb yuav tsim kom muaj kev vam meej yav tom ntej nrog koj lub tuam txhab esteemed rau 20MnG High Pressure Cold Rolled Heat Exchanger Boiler Steel Pipe, Peb yuav ua kom muaj zog ntxiv rau. pab cov neeg yuav khoom hauv tsev thiab thoob ntiaj teb, thiab tsim kom muaj kev sib nrig sib pab thiab yeej-yeej kev koom tes ntawm peb.peb txaus siab tos txais koj txoj kev koom tes ua tsaug.
Nrog peb cov thev naus laus zis zoo li peb lub siab ntawm kev tsim kho tshiab, kev sib koom tes, kev pab cuam thiab kev loj hlob, peb yuav tsim kom muaj kev vam meej yav tom ntej nrog koj lub tuam txhab muaj kev hwm rauTuam Tshoj 20MnG Siab Siab Seamless Boiler Tubes, Peb ntseeg tias tsim kom muaj kev sib raug zoo ntawm cov neeg siv khoom thiab kev sib raug zoo rau kev lag luam.Kev sib raug zoo nrog peb cov neeg siv khoom tau pab peb tsim cov saw hlau muaj zog thiab sau cov txiaj ntsig zoo.Peb cov khoom tau txais kev lees paub thoob plaws peb thiab kev txaus siab ntawm peb cov neeg siv khoom thoob ntiaj teb.
(1) Hlau smelting txoj kev
GB 5310 20MnG steel yuav smelted los ntawm hluav taws xob rauv ntxiv rau qhov cub refining, oxygen converter ntxiv rau cub refining los yog electroslag remelting txoj kev.
(2) Kev tsim cov txheej txheem thiab cov kev cai rau lub raj blanks
Lub raj khoob tuaj yeem tsim los ntawm kev nruam casting, tuag casting lossis kub dov (forging).
(3) Kev tsim cov txheej txheem steel raj
GB 5310 20MnG Steel tubes yuav tsum tau tsim los ntawm kub dov (extrusion, expansion) los yog txias kos duab (dov).
| Qib | Kev kho cua sov |
| 20 MnG | 880 ℃ ~ 940 ℃, normalizing |
| Cov yeeb nkab steel | Chemical Composition (%) | ||||||||
| C | Si | Mn | Cr | Mo | V | Ni | Cu | P Max | |
| 20 MnG | 0.17–0.23 dr hab | 0.17-0.37 Nws | 0.70-1.00 Nws | ≤ 0.25 | ≤ 0.15 | ≤ 0.08 | ≤ 0.25 | ≤ 0.20 | 0.025 ib |
| Cov yeeb nkab steel | Tensile zog | Impact zog (Akv), J | Hardness | ||||||||
| Tensile zog | Yield zog | Elongation | Portrait | Toj roob hauv pes | A | B | C | ||||
| (MPa) | (MPa) | Portrait (%) | Toj roob hauv pes (%) | HBW | HV | HRC | |||||
| Max | Min | ||||||||||
| 20 MnG | ≥415 | 240 | 22 | 20 | 40 | 27 | — | — | — | ||
Nws yog siv los ua Cov Khoom Siv Hluav Taws Xob Cov Khoom Siv Hluav Taws Xob, Alloy Cov Qauv Hlau thiab Stainless Heat-Resistant Steel Seamless Steel Yeeb Nkab Rau Kev Kub Siab Thiab Tshaj Tawm Chav Boiler Pipes.
Feem ntau yog siv rau kev kub siab thiab kub kub kev pab cuam ntawm boiler (Superheater Tube, Reheater Tube, Cua Qhia Tube, Main Steam Tube rau High Thiab Ultra High Pressure Boilers).Raws li Kev Ua Haujlwm Ntawm Cov Hluav Taws Xob Kub Kub Kub thiab Dej Vapor, Lub Tube yuav Oxidize thiab Corrode.Nws yog qhov yuav tsum tau ua kom cov yeeb nkab steel muaj kev ua haujlwm siab, ua haujlwm siab rau oxidation thiab corrosion, thiab cov qauv zoo.
Qib Ntawm High-Quality Carbon Structural Steel: 20g, 20mng, 25mng
Qib ntawm Alloy Structural Steel: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, Etc
Qib ntawm xeb-Resistant Thaum tshav kub kub-Resistant Steel: 1cr18ni9 1cr18ni11nb
Ntev:
Qhov ntev ntawm cov yeeb nkab steel yog 4 000 mm ~ 12 000 mm.Tom qab kev sib tham ntawm tus neeg muag khoom thiab tus neeg yuav khoom, thiab sau rau hauv daim ntawv cog lus, nws tuaj yeem xa cov kav hlau uas muaj qhov ntev dua 12 000 mm lossis luv dua kuv 000 mm Tab sis tsis luv dua 3 000 mm;Ntev Ntev Tus naj npawb ntawm cov yeeb nkab steel tsawg dua 4,000 mm Tab sis tsis tsawg dua 3,000 mm Yuav tsum tsis tshaj 5% ntawm tag nrho cov tooj hlau xa khoom.
Delivery Nyhav:
Thaum cov yeeb nkab hlau xa tawm raws li Nominal Outer Diameter Thiab Nominal Phab Ntsa Thickness lossis Nominal Inner Diameter Thiab Nominal Phab Ntsa Thickness, Cov Yeeb Nkab Hlau tau xa raws li qhov hnyav tiag tiag.Nws kuj tseem tuaj yeem xa tuaj raws li Qhov Ntsuas Theoretical.
Thaum Cov Yeeb Nkab Hlau xa tawm raws li Lub Nominal Outer Diameter thiab Tsawg Phab Ntsa Thickness, Cov Yeeb Nkab Hlau tau xa raws li qhov hnyav tiag tiag;Cov Kev Pabcuam thiab Kev Xav Tau Kev Sib Tham.Thiab Nws tau qhia hauv Daim Ntawv Cog Lus.Cov Yeeb Nkab Hlau kuj tuaj yeem xa tuaj raws li Kev Ntsuas Theoretical.
Nyhav Tolerance:
Raws li qhov yuav tsum tau muaj ntawm tus neeg yuav khoom, tom qab kev sab laj ntawm tus neeg muag khoom thiab tus neeg yuav khoom, thiab hauv daim ntawv cog lus, qhov sib txawv ntawm qhov nyhav tiag tiag thiab qhov ntsuas qhov hnyav ntawm cov xa khoom steel yeeb nkab yuav tsum ua raws li cov hauv qab no:
A) Ib leeg yeeb nkab: ± 10%;
B) Txhua Batch Ntawm Cov Yeeb Nkab Hlau Nrog Qhov Loj Ntawm 10 T: ± 7.5%.
Hydraustatic Test:
Cov yeeb nkab steel yuav tsum tau sim Hydraulic ib leeg.Qhov ntsuas siab tshaj plaws yog 20 MPa.Nyob rau hauv qhov kev sim siab, lub sij hawm ruaj khov yuav tsum tsis pub tsawg tshaj 10 S, thiab cov yeeb nkab hlau yuav tsum tsis txhob tawm.
Tom qab tus neeg siv pom zoo, Kev Ntsuas Hydraulic tuaj yeem hloov pauv los ntawm Eddy Tam sim no Kev Ntsuas lossis Kev Ntsuas Flux Magnetic.
Nondestructive Test:
Cov kav dej uas xav tau kev tshuaj xyuas ntau dua yuav tsum tau kuaj xyuas Ultrasonically ib qho los ntawm ib qho.Tom qab Kev Sib Tham Yuav Tsum Tau Txais Kev Pom Zoo Los ntawm Pawg Neeg thiab tau teev tseg hauv daim ntawv cog lus, lwm yam kev sim tsis muaj kev puas tsuaj tuaj yeem raug ntxiv.
Flattening Test:
Tubes nrog ib txoj kab uas hla sab nraud loj dua 22 hli yuav tsum raug rau qhov kev ntsuam xyuas flattening.Tsis pom kev delamination, pob dawb, lossis impurities yuav tsum tshwm sim thaum tag nrho kev sim.
Flaring Test:
Raws li qhov yuav tsum tau muaj ntawm tus neeg yuav khoom thiab tau teev nyob rau hauv daim ntawv cog lus, cov yeeb nkab steel nrog txheej txheej ≤76mm thiab phab ntsa Thickness ≤8mm tuaj yeem ua tiav Flaring Test.Qhov kev sim tau ua nyob rau hauv chav kub nrog ib tug taper ntawm 60 °.Tom qab Flaring, Qhov Flaring Rate ntawm Sab Nraud Sab Nraud yuav tsum ua kom tau raws li qhov yuav tsum tau muaj ntawm cov lus hauv qab no, thiab cov khoom siv ntsuas yuav tsum tsis txhob muaj qhov tawg lossis tawg.
Nrog peb cov thev naus laus zis thiab peb tus ntsuj plig ntawm kev tsim kho tshiab, kev sib koom tes, kev pab cuam thiab kev loj hlob, peb yuav tsim kom muaj kev vam meej yav tom ntej nrog koj lub tuam txhab.
20MnG High Pressure Cold Rolled Heat Exchanger Boiler Steel Pipe
Peb yuav ua kom muaj kev sim siab ntxiv los pab cov neeg yuav khoom hauv tsev thiab thoob ntiaj teb, thiab tsim kom muaj kev sib koom tes thiab kev sib tw yeej-yeej kev koom tes ntawm peb.peb txaus siab tos txais koj txoj kev koom tes ua tsaug.
Tuam Tshoj 20MnG Siab Siab Seamless Boiler Tubes
Peb ntseeg tias tsim kom muaj kev sib raug zoo ntawm cov neeg siv khoom thiab kev sib raug zoo rau kev lag luam.Kev sib raug zoo nrog peb cov neeg siv khoom tau pab peb tsim cov saw hlau muaj zog thiab sau cov txiaj ntsig zoo.Peb cov khoom tau txais kev lees paub thoob plaws peb thiab kev txaus siab ntawm peb cov neeg siv khoom thoob ntiaj teb.
