GB 5310 20MNG Siab Siab Seamless Boiler Tubes

GB 5310 20MNG High Pressure Seamless Boiler Tubes Featured duab

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.

Xa email rau peb

Product Detail

Khoom cim npe

Kev tsim khoom

(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).

Khoom Qhia

Kev kho cua sov rau GB 5310 20MnG High Pressure Boiler Tubes

Qib	Kev kho cua sov
20 MnG	880 ℃ ~ 940 ℃, normalizing

Tshuaj muaj pes tsawg leeg ntawm GB 5310 20MnG High Pressure Boiler Tubes

Cov yeeb nkab steel

Chemical Composition (%)

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

Mechanical zog ntawm GB 5310 20MnG High Pressure Boiler Tubes

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	—	—		—

Daim ntawv thov

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 tseem ceeb

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%.

Kev Xeem Xeem

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.

Yav dhau los: ASTM A53 Cov Khoom Siv Hluav Taws Xob

Tom ntej:Seamless Steel Hydraulic Lub tog raj kheej Honed yeeb nkab