ASTM A213 T12 Alloy Steel Yeeb Nkab rau Boilers

Yog tias koj tab tom nrhiav kev txhim khu kev qha ASTM A213 Qib T12 alloy steel seamless boiler raj rau siab - kub thiab siab - siab boiler thiab tshav kub hloov tshuab, peb muab ASTM A213 T12 alloy seamless raj uas ua los ntawm ob qho tib si kub -tiav lossis txias - cov txheej txheem tiav. Cov hlab no tau txais kev ua haujlwm zoo li qub thiab kev kho cua sov, ua rau lawv muaj qhov tshwj xeeb siab -kub creep tsis kam. Qhov no daws tau cov teeb meem kev lag luam zoo xws li creep deformation, tube rupture, thermal qaug zog tsis ua hauj lwm, qhov seem tsis ruaj khov, thiab ua kom lub neej luv luv nyob rau hauv lub caij nyoog siab tshaj -kub kev ua haujlwm.

 

ASTM A213 T12 alloy tubes, tshwj xeeb yog tsim los rau cov khoom siv hluav taws xob sib txawv, tau txais kev noj qab haus huv thiab kev kho mob passivation. Yog li ntawd, ob qho tib si lawv sab hauv thiab sab nrauv muaj qhov roughness tus nqi ntawm Ra Tsawg dua lossis sib npaug li 0.8 μm thiab tsis muaj qhov tsis xws luag xws li zeb nplai, pitting, thiab khawb. Qhov no txo ​​cov kua dej tsis kam, txhawb kev sib pauv hluav taws xob ntau dua 15%, thiab tiv thaiv kev tawg ntxov ntxov los ntawm kev yaig-corrosion.

 

Peb cov ASTM A213 Qib T12 alloy steel tubs nruj me ntsis ua raws li ultra-cov kev cai ua haujlwm zoo tau teev tseg hauv ASTM A213 tus qauv: sab nraud txoj kab uas hla yog tswj nyob rau hauv ± 0.08 hli, roundness tsawg dua los yog sib npaug rau 0.05 hli, ncaj nraim yog Less tshaj 5 hli los yog sib npaug li ntawm 0. sib npaug li 8%. Qhov no tshem tawm tag nrho cov teeb meem-xws li cov teeb meem hauv kev ntxig, lub raj ntawv lub qhov hnav, thiab tsis sib npaug ntawm kev nthuav dav kev ntxhov siab- uas feem ntau tshwm sim thaum lub sij hawm sib sau ua ke ntawm ntau pua lossis ntau txhiab lub raj vim muaj qhov loj me me, qhov ncaj ncaj, lossis cov phab ntsa tuab tsis sib xws. Tsis tas li ntawd, nws txhim kho qhov ua tau zoo ntawm cov txheej txheem kev siv lub raj tso rau ntau dua 30%.

 

 

Hais txog hardness, peb nruj me ntsis tswj cov khoom nyob rau hauv ib tug hwm machinability range ntawm 140–155 HBW-zoo hauv qab 163 HBW sab sauv txwv los ntawm ASTM A213 tus qauv. Qhov no tiv thaiv cov teeb meem xws li lub caij nplooj ntoos hlav ntau dhau thiab vuam tawg uas tuaj yeem tshwm sim thaum lub raj xa dej nthuav dav yog tias cov khoom siv nyuaj heev, yog li ua kom muaj 100% kev ua tiav tiav thiab kev ua haujlwm ruaj khov.

 

ASTM A213 T12 Alloy Steel Boiler Tube Specification

Txheej txheem tsim khoom: Seamless (Kub-ua tiav lossis txias- tiav)
Phab ntsa Thickness (WT): 0.9 hli - 12.7 hli
Sab nraud txoj kab uas hla (OD): 12.7 mm - 127 mm
Ntev: 6 meters, los yog kho raws li qhov ntev raws li qhov kev thov
Tube End Hom: Plain, Beveled, lossis Threaded
Nqe Ntau: FOB USD 1,280 - 1,680 / Tuj
Cov nqe lus them nqi: T / T (Telegraphic Transfer), L / C (Letter of Credit)
Lub sij hawm xa tuaj: 7-15 hnub tom qab them nyiaj
Surface Treatment: Varnished sab nrauv nto rau xeb tiv thaiv
Kos npe: Standard No. + Steel Qib + Dimensions + Thaum tshav kub kub tsis muaj . + Batch No.

 

Tshuaj muaj pes tsawg leeg ntawm ASTM A213 T12 Seamless Boiler Tubes

Qib	Chemical Composition (%)
	C	Mn	P	S	Si	Cr	Mo
A213 T12	0.05-0.15	0.30-0.60	Tsawg dua lossis sib npaug li 0.025	Tsawg dua lossis sib npaug li 0.025	Tsawg dua los yog sib npaug li 0.50	0.80-1.25	0.45-0.65

Mechanical Properties ntawm ASTM A213 T12 Seamless Boiler Tubes

Tsawg Alloy Steels
Qib	UNS Lub npe	Tensile Lub zog, miv, ksi [MPa]	Yield Lub zog, miv, ksi [MPa]	Elongation hauv 2in 50 hli, min,%	Hardness
					Brinell/Vickers	Rockwell
T12	K11562	60 [415]	32 [220]	30	163 HWB/ 170 HV	85 PAB

Cov cuab yeej cuab tam yuav tsum tsis txhob siv rau tubing me dua 1 ⁄ 8in. [3.2 hli] nyob rau hauv txoj kab uas hla los yog thinner tshaj 0.015 nyob rau hauv. [0.4 mm] nyob rau hauv thickness.

 

ASTM A213 T12 Alloy Steel Yeeb Nkab Tolerances ntawm Ntev

Txoj kev ntawm Tsim	Qhia tawm sab nraud Txoj kab uas hla [mm]	Txiav Length, hauv. [mm]
		Tshaj	Hauv qab
Seamless, kub -ua tiav	Txhua qhov ntau thiab tsawg	3 ⁄ 16 [5]	0 [0]
Seamless, txias -ua tiav	Hauv qab 2 [50.8]	1 ⁄ 8 [3]	0 [0]
	2 [50.8] los yog ntau dua	3 ⁄ 16 [5]	0 [0]
	2 [50.8] los yog ntau dua	3 ⁄ 16 [5]	0 [0]

 

 

Ordering Information

Nws yuav tsum yog lub luag haujlwm ntawm tus neeg yuav khoom los qhia tag nrho cov kev xav tau uas tsim nyog rau cov khoom.
(1) Quantity (ko taw, meters, los yog tus naj npawb ntawm qhov ntev),
(2) Lub npe ntawm cov khoom (seamless raj),
(3) Qib (T22),
(4) Kev mob (kub tiav lossis txias tiav),
(5) Loj (sab nraum txoj kab uas hla thiab qhov tsawg kawg nkaus phab ntsa thickness, tshwj tsis yog qhov nruab nrab phab ntsa thickness tau teev),
(6) Ntev (tshwj xeeb lossis random),
(7) Hydrostatic Test lossis Nondestructive Electric Test,

Hu rau tam sim no

 

 Kev sim
(1) Kev ntsuas nruj - Ib qho kev ntsuas nruj yuav tsum tau ua rau ntawm cov qauv ntawm ib lub raj rau ntau yam tsis ntau tshaj 50 lub raj. Kev ntsuas nruj yuav tsum tau ua ntawm cov qauv ntawm ob lub raj rau ntau tshaj 50 lub raj.
(2) Hardness Requirements-- Brinell, Vickers, lossis Rockwell hardness tests yuav tsum tau ua ntawm cov qauv ntawm ob lub raj los ntawm txhua qhov ntau.
(3) Flattening Test - Ib qho kev sim flattening yuav tsum tau ua ntawm cov qauv ntawm txhua qhov kawg ntawm ib lub raj tiav.
(4) Flaring Test - Ib qho kev sim flaring yuav tsum tau ua ntawm cov qauv ntawm txhua qhov kawg ntawm ib lub raj tiav.

 

ASTM A213 T12 Seamless Boiler Tubes Kos npe

Ntxiv rau cov cim qhia hauv Specification ASTM A1016/A1016M, lub cim yuav tsum qhia seb lub raj puas kub -tiav lossis txias - tas.

Peb ASTM A213 T12 alloy steel tubes tau ntim cov khoom kom zoo kom muaj kev nyab xeeb kev thauj mus los thiab khaws cov khoom zoo. Txhua lub raj yog ntxuav, oiled, thiab qhwv hauv cov dej noo- cov ntaub ntawv pov thawj tiv thaiv kom tsis txhob muaj xeb thaum khaws cia thiab thauj. Cov raj yog bundled raws li tus qauv hnyav- feem ntau yog li ntawm 1 mus rau 2 metric tons ib nras - thiab ntxiv dag zog rau steel strapping los tiv thaiv kev hloov thaum lub sij hawm thauj mus los.