ASTM A269 TP304 Stainless Hlau Seamless Pipes Rau Boiler

Vim li cas cov phiaj xwm boiler tseem niaj hnub ntsib teeb meem xws li cov phab ntsa tsis sib xws, qhov loj me, lossis thaum ntxov thaum siv cov kav dej stainless hlau? Qhov tseem ceeb feem ntau yog nyob rau hauv seb cov yeeb nkab phab ntsa thickness uniformity, internal deg tiav, thiab tsis kam mus rau intergranular corrosion tiag tiag raws li qhov xav tau ntawm ntev -lub sij hawm siab - kub ua hauj lwm.

 

Peb ASTM A269 TP304 Stainless Steel Seamless Pipes rau Boiler yog tsim tshwj xeeb rau siab -kub boilers. Lub phab ntsa tuab ntawm cov kav dej no yog tswj nruj heev, nrog rau kev sib txawv feem ntau nyob rau hauv ± 10%, kom ntseeg tau tias cov cua sov hloov mus rau hauv ib puag ncig thiab tiv thaiv cov cua sov hauv zos. Sab hauv ntawm TP304 cov kav dej yog qhov tseeb- polished, ua tiav qhov roughness (Ra) feem ntau Tsawg dua lossis sib npaug li 0.8 μm, uas ua rau txo qis, txhim kho cov dej ntws, thiab ua kom ruaj khov ntev - lub sijhawm ua haujlwm boiler.

 

Tsis tas li ntawd, tag nrho cov ASTM A269 TP304 stainless hlau seamless kav nyob rau hauv cov txheej txheem kev daws teeb meem annealing (Ntau dua los yog sib npaug rau 1040℃tom qab txias txias) kom tag nrho yaj carbides thiab txo vuam los yog machining stresses, zoo tiv thaiv intergranular corrosion (IGC). Los ntawm nruj tswj cov phab ntsa thickness uniformity, sab hauv nto zoo, thiab corrosion kuj, peb ua tiav cov teeb meem tshwm sim nyob rau hauv boiler daim ntaub ntawv, xws li hauv zos overheating, ntau scaling, thaum ntxov yeeb nkab to, thiab nquag tu.

Nyob rau hauv qhov tseeb -cov ntaub ntawv ntiaj teb no, ib tsob nroj tshuaj nyob rau hauv Nyab Laj tau txais peb cov high - zoo TP304 seamless boiler kav. Raws li qhov tshwm sim, qhov kev ntsuas qhov ntsuas tau txo qis los ntawm kwv yees li 20%, kev teeb tsa kev ua haujlwm tau zoo dua los ntawm 30%, thiab tag nrho cov kev pabcuam lub neej tau nce ntau dua 25%, muab cov neeg siv khoom muaj kev nyab xeeb dua, ua haujlwm tau zoo dua, thiab qis dua - tu ncua sijhawm - haujlwm.

 

A269 TP304 Stainless Hlau Seamless Tube Tshuaj muaj pes tsawg leeg

SS	304	304N	304 LN ib
Ni	8 – 11	8 – 11	8 – 11
Fe	Tshuav
Cr	18 – 20	18 – 20	18 – 20
C	0.08 max	0.08 max	0.035 max
Si	0.75 max	0.75 max	0.75 max
Mn	2 max	2 max	2 max
P	0.040 max	0.040 max	0.040 max
S	0.030 max	0.030 max	0.030 max
N		0.10 – 0.16	0.10 – 0.16

 

A269 TP304 Stainless Hlau Seamless Tube Mechanical Properties

Qhov ntom	8.0g 3
Melting Point	1400℃(2550℃F)
Tensile zog	Psi - 75000, MPa - 515
Yield zog (0.2% Offset)	Psi - 30000, MPa - 205
Elongation	35%

 

A269 TP304 Stainless Hlau Seamless Tube Lub cev muaj zog

Qib	Qhov ceev (kg / m3)	Elastic Modulus (GPa)	Qhov nruab nrab Coefficient ntawm Thermal Expansion (m / m / 0C)			Thermal conductivity (W / mK)		Cov cua kub tshwj xeeb 0-1000C (J / kg.K)	Hluav taws xob Resistivity (nm)
			0-100 degree	0-315 degree	0-538 ° C	ntawm 100 degree	ntawm 500 degree
304/H	8000	193	17.2	17.8	18.4	16.2	21.5	500	720

 

Txoj kab uas hla ASTM A269 TP304 Tube

NPS	ASTM A269 TP304 Tube OD kam rau ua
	+		–
	nti	mm	nti	mm
1/8~1 1 /2	1/64(0.015)	0.4	1/32(0.031)	0.8
> 1 1 /2~4	1/32(0.031)	0.8	1/32(0.031)	0.8
> 4~8	1/16(0.062)	1.6	1/32(0.031)	0.8
> 8~18	3/32(0.093)	2.4	1/32(0.031)	0.8
> 18~26	1/8(0.125)	3.2	1/32(0.031)	0.8
> 26~34	5/32(0.156)	4	1/32(0.031)	0.8
> 34~48	3/16(0.187)	4.8	1/32(0.031)	0.8

 

Phab ntsa Thickness kam rau ua ASTM A269 TP304 Tube

NPS	ASTM A269 TP304 Tube kam rau ua,%
	+	–
1/8-2 1 /2	20	12.5
3 ~ 18, t / D Tsawg dua lossis sib npaug li 5%	22.5	12.5
3~18, t/D> 5%	15	12.5
Ntau tshaj los yog sib npaug rau 20, welded	17.5	12.5
Ntau dua lossis sib npaug rau 20, seamless, t / D Tsawg dua lossis sib npaug li 5%	22.5	12.5
≥ 20, seamless, t/D> 5%	15	12.5

 

Daim ntawv thov

Tshuaj thiab petrochemical
Kev tsim hluav taws xob
Lub zog tauj dua tshiab
Pulp thiab ntawv
Txheej txheem kav
Pharmaceutical
Khoom noj khoom haus thiab dej haus
Roj thiab roj
Mining
Dej / pov tseg

 

Tsis yog -Kev kuaj kev puas tsuaj

Eddy Kev Ntsuas Tam Sim No: Muab 100% kev pab cuam txhawm rau txheeb xyuas qhov tsis xws luag hauv lub raj phab ntsa.
Kev Ntsuas Hydrostatic: Khaws tus qauv siab rau lub sijhawm teev tseg kom ntseeg tau tias tsis muaj qhov xau.
Tsis tas li ntawd, peb muab Kev Ntsuas Cua Hauv Dej, tshwj xeeb tsim los rau ib puag ncig uas muaj cov pa roj permeable.

 

Ntim thiab Marking:

Cov khoom yuav tsum tau ntim rau hauv cov pob khoom lossis cov plywood crates, qhwv hauv cov yas, thiab muab cov kev tiv thaiv tsim nyog los xyuas kom meej tias seaworthy thauj, los yog ntim raws li cov kev cai tshwj xeeb.
Cov cim yuav qhia seb lub raj puas kub - ua haujlwm lossis txias - ua haujlwm, thiab yuav tsum suav nrog -tab sis tsis txwv rau - cov ntaub ntawv hauv qab no: tus qauv, qib, qhov ntev, tus naj npawb cua sov, thiab batch tooj.