Hoobkas ua kub muag Tuam Tshoj High Pressure Boiler Yeeb Nkab GB 5310 12Cr1MoVG alloy yeeb nkab
Txhawm rau ua kom cov txheej txheem kev tswj hwm tsis tu ncua los ntawm kev tsim txiaj ntawm txoj cai "ua siab dawb, kev ntseeg zoo thiab zoo heev yog lub hauv paus ntawm kev txhim kho tuam txhab", peb nquag nqus cov ntsiab lus ntawm cov khoom sib txuas thoob ntiaj teb, thiab txuas ntxiv tsim cov kev daws teeb meem tshiab los ua kom tiav cov kev xav tau ntawm cov neeg yuav khoom.12Cr1MoVG alloy yeeb nkab, boiler yeeb nkab, 12Cr1MoVG, hlau yeeb nkab, Peb yuav muab cov khoom zoo dua nrog ntau hom kev tsim thiab cov kev pabcuam tshwj xeeb. Peb ua tsaug zoo siab txais tos cov phooj ywg los ntawm thoob plaws lub ntiaj teb tuaj xyuas peb lub tuam txhab thiab koom tes nrog peb ntawm cov txiaj ntsig ntev thiab kev sib nrig sib pab
Txheej txheem cej luam
Daim ntawv thov
Nws yog tsuas yog siv los ua cov pa roj carbon zoo steel, alloy steel qauv thiab stainless hlau kub-resistant steel seamless steel kav rau kev kub siab thiab siab dua chav boiler kav.
Feem ntau yog siv rau kev kub siab thiab kub kev pab cuam ntawm boiler (Superheater raj, reheater raj, cua qhia raj, lub ntsiab chav tub raj rau siab thiab ultra siab siab boilers). Nyob rau hauv qhov kev txiav txim ntawm kub flue roj thiab dej vapor, lub raj yuav oxidize thiab corrode. Nws yuav tsum tau hais tias cov yeeb nkab steel muaj cov kav ntev, siab tiv thaiv oxidation thiab corrosion, thiab cov qauv zoo.
Qib tseem ceeb
Qib ntawm cov khoom zoo carbon steel: 20g, 20mng, 25mng
Qib ntawm alloy structural steel: 15mog, 20mog, 12crmog, 15crmog, 12cr2mog, 12crmovg, 12cr3movsitib, thiab lwm yam
Qib ntawm xeb-resistant kub-resistant steel: 1cr18ni9 1cr18ni11nb
Chemical Component
| Qib | Zoo Chav kawm | Chemical Property | ||||||||||||||
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | Nd | Mo | B | Als" | ||
| 不大于 | 不小于 | |||||||||||||||
| q345 ua | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.30 Nws | 0.50 ib | 0.20 ib | 0.012 ib | 0.10 | — | — | |||
| B | 0.035 ib | 0.035 ib | ||||||||||||||
| C | 0.030 Nws | 0.030 Nws | 0.07 ib | 0.15 | 0.20 ib | 0.015 ib | ||||||||||
| D | 0.18 | 0.030 Nws | 0.025 ib | |||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| q390 ua | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.07 ib | 0.20 ib | 0.20 ib | 0.3 ua. | 0.50 ib | 0.20 ib | 0.015 ib | 0.10 | — | — |
| B | 0.035 ib | 0.035 ib | ||||||||||||||
| C | 0.030 Nws | 0.030 Nws | 0,015 ib | |||||||||||||
| D | 0.030 Nws | 0.025 ib | ||||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| qw 42o | A | 0.20 ib | 0.50 ib | 1.70 ib | 0.035 ib | 0.035 ib | 0.07 ib | 0.2 ua. | 0.20 ib | 0.30 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | — | — |
| B | 0.035 ib | 0.035 ib | ||||||||||||||
| C | 0.030 Nws | 0.030 Nws | 0.015 ib | |||||||||||||
| D | 0.030 Nws | 0.025 ib | ||||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| qw 46o | C | 0.20 ib | 0.60 ib | 1.80 ib | 0.030 Nws | 0.030 Nws | 0.11 | 0.20 ib | 0.20 ib | 0.30 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | 0.005 ib | 0.015 ib |
| D | 0.030 Nws | 0.025 ib | ||||||||||||||
| E | 0.025 ib | 0.020 ib | ||||||||||||||
| q500 ua | C | 0.18 | 0.60 ib | 1.80 ib | 0.025 ib | 0.020 ib | 0.11 | 0.20 ib | 0.20 ib | 0.60 ib | 0.80 ib | 0.20 ib | 0.015 ib | 0.20 ib | 0.005 ib | 0.015 ib |
| D | 0.025 ib | 0.015 ib | ||||||||||||||
| E | 0.020 ib | 0.010 ib | ||||||||||||||
| q550 ua | C | 0.18 | 0.60 ib | 2.00 Nws | 0.025 ib | 0,020 ua | 0.11 | 0.20 ib | 0.20 ib | 0.80 ib | 0.80 ib | 0.20 ib | 0.015 ib | 0.30 Nws | 0.005 ib | 0.015 ib |
| D | 0.025 ib | 0,015 ib | ||||||||||||||
| E | 0.020 ib | 0.010 ib | ||||||||||||||
| qw 62o | C | 0.18 | 0.60 ib | 2.00 Nws | 0.025 ib | 0.020 ib | 0.11 | 0.20 ib | 0.20 ib | 1.00 Nws | 0.80 ib | 0.20 ib | 0.015 ib | 0.30 Nws | 0.005 ib | 0.015 ib |
| D | 0.025 ib | 0.015 ib | ||||||||||||||
| E | 0.020 ib | 0.010 ib | ||||||||||||||
| Tsuas yog Q345A thiab Q345B qib, cov hlau yuav tsum muaj tsawg kawg yog ib qho ntawm cov khoom ua kom zoo zoo Al, Nb, V, thiab Ti. Raws li qhov xav tau, tus neeg muag khoom tuaj yeem ntxiv ib lossis ntau dua cov khoom ua kom zoo nkauj, tus nqi siab tshaj plaws yuav tsum ua kom tau raws li qhov yuav tsum tau ua hauv lub rooj. Thaum ua ke, Nb + V + Ti <0.22% ° Rau Q345, Q390, Q420 thiab Q46O qib, Mo + Cr <0.30% oThaum txhua qib ntawm Cr thiab Ni siv los ua cov khoom seem, cov ntsiab lus ntawm Cr thiab Ni yuav tsum tsis txhob ntau tshaj 0.30%; Thaum nws yuav tsum tau ntxiv, nws cov ntsiab lus yuav tsum ua kom tau raws li qhov yuav tsum tau ua hauv lub rooj lossis txiav txim siab los ntawm tus neeg muag khoom thiab tus neeg yuav khoom los ntawm kev sib tham.J Yog tias tus neeg muag khoom tuaj yeem lav tias cov ntsiab lus nitrogen ua tau raws li qhov yuav tsum tau ua hauv lub rooj, cov ntsiab lus nitrogen tsom xam yuav tsis tau ua. Yog tias Al, Nb, V, Ti thiab lwm yam hlau alloy nrog nitrogen fixation ntxiv rau cov hlau, cov ntsiab lus nitrogen tsis txwv. Cov ntsiab lus ntawm nitrogen fixation yuav tsum tau teev nyob rau hauv daim ntawv pov thawj zoo.'Thaum siv tag nrho cov txhuas, tag nrho cov ntsiab lus txhuas AIt ^ 0.020% B | ||||||||||||||||
Mechanical Property
| No | Qib | Mechanical Property | ||||
|
|
| Tensile | Yield | Txuas ntxiv | Impect (J) | Tes tes |
| 1 | 20 G | 410- | ≥ | 24/22% | 40/27 ib | — |
| 2 | 20 MnG | 415- | ≥ | 22/20% | 40/27 ib | — |
| 3 | 25 MnG | 485- | ≥ | 20/18% | 40/27 ib | — |
| 4 | 15 MOG | 450- | ≥ | 22/20% | 40/27 ib | — |
| 6 | 12 CrMoG | 410- | ≥ | 21/19% | 40/27 ib | — |
| 7 | 15 CrMoG | 440- | ≥ | 21/19% | 40/27 ib | — |
| 8 | 12Cr2MoG | 450- | ≥ | 22/20% | 40/27 ib | — |
| 9 | 12Cr1MoVG | 470- | ≥ | 21/19% | 40/27 ib | — |
| 10 | 12Cr2MoWVTiB | 540- | ≥ | 18/-% | 40/- | — |
| 11 | 10Cr9Mo1VNbN | ≥ | ≥ | 20/16% | 40/27 ib | ≤ |
| 12 | 10Cr9MoW2VNbBN | ≥ | ≥ | 20/16% | 40/27 ib | ≤ |
Ua siab ntev
Phab ntsa Thickness thiab Outter Diameter:
Yog tias tsis muaj cov kev cai tshwj xeeb, cov yeeb nkab yuav raug xa tawm raws li cov kab nruab nrab sab nraud thiab cov phab ntsa tuab. Raws li daim ntawv
| Classification npe | Txoj kev tsim khoom | Qhov loj ntawm cov kav dej | Ua siab ntev | |||
| Qib ib txwm | Qib siab | |||||
| WH | Kub Rolled (extrude) yeeb nkab | Norminal sab nraud Diameter (D) | <57 | ua 0.40 | ± 0,30 | |
| 57-325 Ib | SWB 35 | ± 0.75% D | ± 0.5% D | |||
| S > 35 | ± 1% D | ± 0.75% D | ||||
| > 325-6.. | + 1%D lossis + 5.Ua tsawg dua ib qho 2 | |||||
| > 600 | + 1% D lossis + 7, Noj tsawg dua ib 2 | |||||
| Norminal Phab Ntsa Thickness (S) | <4.0 | ±|・丨) | ± 0.35 | |||
| > 4.0-20 | + 12.5% S | ± 10% S | ||||
| > 20 | SIB DV219 | ± 10% S | ± 7.5% S | |||
| ib 219 | + 12.5%S -10%S | 土10% S | ||||
| WH | Thermal expansion yeeb nkab | Norminal sab nraud Diameter (D) | tag nrho | ± 1% D | ± 0.75%. |
| Norminal Phab Ntsa Thickness (S) | tag nrho | + 20% S -10% S | + 15% S -io%s | ||
| WC | Cold drawn (kub) Ppipe | Norminal sab nraud Diameter (D) | <25.4 | ±'L1j | — |
| > 25.4 ~ 4() | ± 0.20 | ||||
| > 40-50 | |:0.25 | — | |||
| > 50-60 | ± 0.30 | ||||
| > 60 | ± 0.5% D | ||||
| Norminal Phab Ntsa Thickness (S) | <3.0 | ± 0.3 | ± 0.2 | ||
| > 3.0 | S | ± 7.5% S |
Ntev:
Qhov ntev ntev ntawm cov kav hlau 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 steel nrog qhov ntev ntau dua 12 000 mm lossis luv dua kuv 000 mm tab sis tsis luv dua 3 000 mm; luv luv Cov kav hlau steel tsawg dua 4,000 hli tab sis tsis pub tsawg dua 3,000 hli yuav tsum tsis pub tshaj 5% ntawm tag nrho cov kav hlau xa khoom.
Delivery luj:
Thaum cov yeeb nkab steel xa tawm raws li qhov nominal txheej kab thiab nominal phab ntsa thickness los yog lub nominal puab txoj kab uas hla thiab nominal phab ntsa thickness, cov yeeb nkab steel yog xa raws li qhov tseeb qhov hnyav. Nws kuj tuaj yeem raug xa tawm raws li qhov hnyav theoretical.
Thaum cov yeeb nkab steel xa tawm raws li qhov nominal txheej kab thiab qhov tsawg kawg nkaus phab ntsa thickness, cov yeeb nkab steel yog xa raws li qhov tseeb qhov hnyav; cov khoom thiab cov neeg thov kev sib tham. Thiab nws yog qhia nyob rau hauv daim ntawv cog lus. Cov yeeb nkab steel kuj tuaj yeem xa tawm raws li qhov ntsuas qhov hnyav.
Qhov hnyav kam rau ua:
Raws li cov kev xav tau ntawm tus neeg yuav khoom, tom qab kev sib tham ntawm tus neeg muag khoom thiab tus neeg yuav khoom, thiab hauv daim ntawv cog lus, qhov sib txawv ntawm qhov hnyav tiag tiag thiab qhov ntsuas theoretical ntawm tus xa khoom steel yeeb nkab yuav tsum ua raws li cov hauv qab no:
a) Ib leeg steel yeeb nkab: ± 10%;
b) Txhua batch ntawm steel kav nrog qhov tsawg kawg nkaus ntawm 10 t: ± 7.5%.
Kev Xeem Xeem
Hydraustatic Test:
Cov yeeb nkab steel yuav tsum tau sim hydraulically ib los ntawm ib qho. Qhov ntsuas siab tshaj plaws yog 20 MPa. Nyob rau hauv qhov kev sim siab, lub sij hawm stabilization yuav tsum tsis pub tsawg tshaj 10 s, thiab cov yeeb nkab steel yuav tsum tsis txhob xau.
Tom qab tus neeg siv pom zoo, qhov kev ntsuam xyuas hydraulic tuaj yeem hloov tau los ntawm kev ntsuas tam sim no los yog kev ntsuam xyuas qhov sib nqus flux.
Nondestructive Test:
Cov kav dej uas xav tau kev tshuaj xyuas ntau dua yuav tsum tau kuaj xyuas ultrasonically ib los ntawm ib qho. Tom qab kev sib tham yuav tsum tau tso cai los ntawm tog thiab tau teev nyob rau hauv daim ntawv cog lus, lwm yam uas tsis yog-tshuaj ntsuam xyuas yuav muab ntxiv.
Flattening Test:
Cov raj uas muaj ib txoj kab uas hla sab nraud ntau dua 22 hli yuav tsum raug kuaj kom haum. Tsis pom delamination, dawb me ntsis, los yog impurities yuav tsum tshwm sim thaum lub sij hawm 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 lub taub sab nraud ≤76mm thiab phab ntsa thickness ≤8mm tuaj yeem ua tiav kev sim ntsuas. Qhov kev sim tau ua nyob rau hauv chav tsev kub nrog ib tug taper ntawm 60 °. Tom qab qhov flaring, qhov flaring tus nqi ntawm lub sab nraud yuav tsum tau raws li qhov yuav tsum tau ntawm cov lus hauv qab no, thiab cov khoom siv kuaj yuav tsum tsis txhob pom cov kab nrib pleb lossis rips.
| Hom hlau
| Sab nraud txoj kab uas hla flaring tus nqi ntawm cov yeeb nkab steel /% | ||
| Inner Diameter/Outter Diameter | |||
| <0.6 | > 0.6-0.8 | > 0.8 | |
| High-zoo carbon structural steel | 10 | 12 | 17 |
| Cov qauv hlau alloy | 8 | 10 | 15 |
| • Lub puab txoj kab uas hla yog xam rau tus qauv. | |||
Product Detail
Seamless Steel Tubes Rau High-Pressure Boilers
GB/T5310-2017
ASME SA-106/SA-106M-2015
ASTMA210 (A210M)-2012
ASME SA-213/SA-213M
