Qhov sib txawv ntawm ASTM A269 thiab A312 stianless steel kav

ASTM A269 tus qauv yog dab tsi?

ASTM A269 yog tus qauv tshwj xeeb rau nominal- phab ntsa- tuab, seamless thiab welded austenitic stainless hlau tubing siv dav dav corrosion- tiv taus thiab siab / qis- daim ntawv thov kub. Nws suav nrog ntau qib (xws li, 304, 316) rau kev lag luam,, tshuaj, thiab kev siv kho mob. Nws feem ntau siv rau tubing 1/4 nyob rau hauv. los yog loj dua nyob rau hauv txoj kab uas hla.

 

ASTM A312 tus qauv yog dab tsi?

ASTM A312 yog tus qauv tshwj xeeb rau seamless, ncaj-seam welded, thiab hnyav hnyav- ua haujlwm austenitic stainless hlau kav npaj rau siab - kub thiab kev pabcuam corrosive. Nws npog cov qib nrov xws li 304/304L thiab 316/316L, xav tau kev kho cua sov thiab cov khoom tshwj xeeb tensile / tshuaj lom neeg rau kev siv cov kav dej.

 

Dab tsi yog qhov txawv ntawm ASTM A269 thiab ASTM A312?

ASTM A312 cov kav dej yog tsim los ntawm kub- cov txheej txheem ua haujlwm. Cov no suav nrog extrusion, tho, thiab dov. Tom qab ntawd cov khoom kawg yog annealed thiab txias - ua haujlwm los txhim kho nws qhov tseeb qhov loj. Ntawm qhov tod tes, ASTM A269 tubing yog tsim los siv txias- ua haujlwm xws li kev kos duab txias lossis txias dov.

 

ASTM A269 vs ASTM A312: Khoom siv

Txuj Yam khoom	ASTM A 269 Cov khoom siv	ASTM A 312 Cov Lus Qhia Tshwj Xeeb
Qib	304 304L 304H 304N 304LN 316 316L 316 Ti 316N 316LN 321 321H 310S 310H 309S 317 317L 347 347H	304 304L 304H 304N 304LN 316 316L 316 Ti 316N 316LN 321 321H 310S 310H 309S 317 317L 347 347H

 

Txuj	ASTM A 312 Cov Lus Qhia Tshwj Xeeb	ASTM A 269 Cov khoom siv
Qhov txawv yooj yim	Welded thiab Seamless Steel Yeeb Nkab	Welded thiab Seamless Steel Tubing
Phab ntsa Thickness	Qhov nruab nrab phab ntsa thickness (+/-10%)	Qhov nruab nrab phab ntsa thickness (+/-10%)
Daim ntawv thov	Stainless hlau yeeb nkab rau siab - kub thiab kev pabcuam corrosive.	Ua tau zoo nyob rau hauv corrosion kuj thiab oxidation kuj yuav tsum tau nyob rau hauv siab kub.

 

ASTM A269 vs ASTM A312: Hydrostatic Test

Txuj Yam khoom	ASTM A 269 Cov khoom siv	ASTM A 312 Cov Lus Qhia Tshwj Xeeb
Hydrostatic Test	OD (mm) Siab max (MPa)	OD (mm) Siab max (MPa)
	D<25.4, 7Mpa	D Tsawg dua lossis sib npaug rau 88.9, 17MPa
	25.4 Tsawg dua lossis sib npaug D<38.1, 10Mpa
	38.1 Tsawg dua lossis sib npaug D<50.8, 14Mpa
	50.8 Tsawg dua lossis sib npaug rau D<76.2, 17MPa	D>88.9, 19MPa
	76.2 Tsawg dua lossis sib npaug D<127, 24MPa
	D Ntau dua lossis sib npaug rau 127, 31Mpa
Intergranular Corrosion Test	ASTM A262 E	ASTM A262 E
Eddy Tam sim no Test	ASTM E426, ASTM E426	ASTM E426, ASTM E426

 

ASTM A269 vs ASTM A312: OD kam rau ua (mm)

OD Tolerance (mm)	OD thiab Ua siab ntev	OD thiab Ua siab ntev	OD thiab Ua siab ntev
	D<25.4 +/-0.10	D<38.1 +/-0.13	10.3 Tsawg dua lossis sib npaug rau D Tsawg dua lossis sib npaug rau 48.3 +0.40/-0.80
	25.4 Tsawg dua lossis sib npaug rau D Tsawg dua lossis sib npaug rau 38.1 +/-0.15
	38.1	38.1 Tsawg dua lossis sib npaug D<88.9 +/-0.25	48.3
	50.8 Tsawg dua lossis sib npaug rau D<63.5 +/-0.25
	63.5 Tsawg dua lossis sib npaug D<76.2 +/-0.30	88.9 Tsawg dua lossis sib npaug D<139.7 +/-0.38	114.3
	76.2 Tsawg dua lossis sib npaug rau D Tsawg dua lossis sib npaug rau 101.6 +/-0.38
	101.6	139.7 Tsawg dua lossis sib npaug D<203.2 +/-0.76	219.1
	190.5

 

ASTM A269 vs ASTM A312: WT kam rau ua (mm)

WT kam rau ua (mm)	O.D. W.T. Ua siab ntev	O.D. W.T. Ua siab ntev	O.D. W.T. Ua siab ntev
	D Tsawg dua lossis sib npaug rau 38.1 WT +20%/-0	D<12.7 WT +/- 15%	10.3 Tsawg dua lossis sib npaug rau D Tsawg dua lossis sib npaug rau 73.0 WT +20.0%/-12.5%
	D>38.1 WT +22%/-0	12.7 Tsawg dua lossis sib npaug D<38.1 WT +/- 10%	88.9 Tsawg dua lossis sib npaug rau D Tsawg dua lossis sib npaug rau 457.0 t / D Tsawg dua lossis sib npaug li 5% WT +22.5%/-12.5%
		D Ntau dua lossis sib npaug rau 38.1 WT: +/- 10%	88.9 Tsawg dua lossis sib npaug rau D Tsawg dua lossis sib npaug rau 457.0 t/D >5% WT +15.0%/-12.5%

 

ASTM A269 vs ASTM A312: Daim ntawv thov

ASTM A312 thiab ASTM A269 yog tsim rau siab -kub thiab siab - kev siv siab. Txawm li cas los xij, vim nws cov phab ntsa tuab dua thiab txoj kab uas hla loj dua, ASTM A312 yog qhov kev xaiv zoo dua rau cov kav dej hnyav -cov kav dej. Thaum ASTM A269 yog qhov tsim nyog rau cov ntawv me me -inch lossis siab- cov ntawv thov raug xws li ntsuas ntsuas, khoom siv kho mob, thiab kev ua zaub mov.

 

Yog tias koj muaj qee qhov kev xav tau rau ASTM A269 thiab ASTM A312 cov khoom, thov koj xav tso qhov kev txiav txim. GNEE muaj cov khoom muag loj ntawm cov khoom nrov rau koj xaiv. Muaj nyob rau hauv ob qho tib si seamless thiab welded daim ntawv, thov hu rau peb lub Hoobkas tam sim rau cov ncauj lus kom ntxaws tshuaj muaj pes tsawg leeg thiab kuaj dawb. Peb muab cov nqi sib tw thiab kev pabcuam zoo heev.

GNEE yog tus kws tshaj lij stainless hlau yeeb nkab xa khoom thiab xa tawm, tshwj xeeb hauv kev muab cov welded thiab seamless stainless hlau kav. Tag nrho cov kav hlau stainless yog tsim los siv cov txheej txheem seamless thiab welded thiab kub - ua haujlwm lossis txias - ua haujlwm raws li cov lus qhia tshwj xeeb. Kev kho cua sov yog ua los ntawm kev sib cais thiab ib txhij nrog cov cua sov ua kom sov. Tag nrho cov kav dej austenitic stainless hlau yuav tsum tau muab rau hauv cov cua sov- kho mob thiab yuav tsum tau ua kom sov- kho raws li tus qauv yuav tsum tau ua.