ASTM A312 TP 304L yeeb nkab tshuaj muaj pes tsawg leeg yog dab tsi?

ASTM A312 TP 304L yeeb nkab yog dab tsi?

ASTM A312 TP 304L yog ib qho kev qhia tshwj xeeb rau qis -carbon (C Tsawg dua lossis sib npaug rau 0.03%) austenitic stainless hlau yeeb nkab, tsim tshwj xeeb rau siab - kub thiab corrosive kev pabcuam; vim txo qis carbide nag lossis daus, cov khoom siv no nthuav tawm weldability zoo heev. Nws yog dav siv thoob plaws ntau yam kev lag luam- suav nrog kev ua tshuaj lom neeg, kev ua zaub mov, thiab kev lag luam roj thiab roj- feem ntau rau kev xa tawm cov kua thiab cov xov xwm gaseous.

 

ASTM A312 TP 304L Stainless hlau yeeb nkab tsum

GNEE yog ib qho kev paub txog ntawm boiler thiab siab steel kav, tsim thiab muab ob qho tib si welded thiab seamless yeeb nkab khoom uas ua raws li ASTM A312 tus qauv. Peb muaj peev xwm muab koj cov ASTM A312 steel yeeb nkab khoom npog tag nrho cov qib thiab qhov ntev.

 

Peb ntiav cov txheej txheem tsim khoom precision uas sib txuas ua ke kub extrusion nrog txias kos duab, ntxiv los ntawm kev kho annealing ntawm 1040-1100 degree. Qhov no zoo tshem tawm cov kev ntxhov siab sab hauv hauv cov tubing thiab ua kom cov khoom sib xws thiab zoo ib yam microstructure.

ASTM A312 TP304 stainless hlau tubing muaj 18.0–20.0% chromium thiab 8.0–12.0% npib tsib xee, featuring ib qho ultra- cov ntsiab lus carbon tsawg tsawg dua lossis sib npaug li 0.03%. Cov tubing no tswj kev ua haujlwm ruaj khov nyob rau hauv qhov kev ua haujlwm kub ntawm -200℃txog 450 degree, ua rau nws haum rau lub sijhawm ntev, kev nyab xeeb.
Hais txog qhov tseeb ntawm qhov tseeb thiab qhov zoo ntawm qhov chaw, peb cov khoom muaj cov kab uas hla sab nraud tswj tau nyob rau hauv ± 0.02-0.4 hli, phab ntsa thickness kam rau ua nyob rau hauv ± 10%, thiab ib tug ncaj ntawm tsawg dua los yog sib npaug zos rau 0.5 mm / m, tag nrho raws li qhov yuav tsum tau rau siab -precision sib dhos daim ntawv thov.

Tom qab pickling thiab passivation kev kho mob, cov tubing nto yog du thiab huv si, nrog ib tug roughness (Ra) tsawg tshaj li los yog sib npaug zos rau 0.8 μm thiab tsis muaj seem seem los yog impurities. Qhov no tsis tsuas yog ua tau zoo retards cov txheej txheem corrosion tab sis kuj ua tiav cov qauv kev huv huv uas xav tau rau kev thauj cov kav dej hauv cov khoom noj thiab tshuaj lag luam.

 

 

ASTM A312 TP 304L yeeb nkab specification

Specifications	ASTM A312 / SA312
Qhov ntev	ASTM, ASME
Loj	1/8 "NB-30" NB
Welded Loj	1/2" NB - 16" NB
Teem caij	TXC 20 SCH 30 SCH 40 STD SCH 80 SCH 60 SCH 80 SCH 120 SCH 140 SCH 160 XXS
Hom	ASTM A 312 TP 304 SS Welded Yeeb Nkab
Tshwj xeeb hauv	Loj Diameter Loj
Ntev	Ib qho Random, Ob Chav Random & Txiav Ntev.
Daim ntawv	Round, Square, Rectangular, Hydraulic thiab lwm yam
Xaus	Plain End, Beveled kawg, Treaded

 

ASTM A312 TP304L Stainless Hlau Seamless Yeeb Nkab Chemical Composition

Qib	UNS	C	Mn	P	S	Si	Cr	Ni
TIAB SA 304	S30400	0.08 max	max 2.00 Nws	0.045 max	0.03 max	max 1.00 Nws	18.0-20.0	8.0-11.0
TP 304 L	S30403	0.035 max	max 2.00 Nws	0.045 max	0.03 max	max 1.00 Nws	18.0-20.0	8.0-13.0

ASTM A312 TP304L Seamless Yeeb Nkab Mechanical Properties

Khoom siv	Kub Kev kho mob	Kub Min.ºF(ºC)	Tensile zog Ksi (MPa), Min.	Yield zog Ksi (MPa), Min.	Elongation %, Min
TIAB SA 304	Kev daws	1900 (1040)	75(515)	30(205)	35
TP 304 L	Kev daws	1900 (1040)	70(485)	25(170)	35

 

Kev suav cov qauv rau tus nqi ntawm pawg rau Stainless Hlau ASTM A312 & Yeeb Nkab

Qib					Qhov hnyav (kg / mm m2)			Formula
304 TP 304 L2 TP 304 L					7,93			W=0.02491t(D-t)
316 TP 316 L2 TP 316 L					7,98			W=0.02507t(D-t)

 

ASTM A312 Stainless hlau yeeb nkab Dimension

Khoom siv	Sab nraud	Phab ntsa Thickness	Ntev	Txuj
Austenitic Duplex Hlau Nickel Alloy Cobalt Alloy Ferrite	8-711mm DN6-DN 700 1/8"-28"	1-50mm Sch5s -SchXXS	Tsawg dua los yog sib npaug li 12m	ASTM -A312 ASTM -A790 ASTM -A269 ASTM -B167/163 ASTM -B444 ASTM -B622 ASTM -B423 ...

 

ASTM A312 Stainless hlau yeeb nkab kam rau ua

Yam khoom Txuj	Sab nraud txoj kab uas hla			Thickness		Ntev
ASTM A 312 Cov Lus Qhia Tshwj Xeeb	OD Tsawg dua lossis sib npaug li 48.26mm + 0.40mm - 0.80mm 48.26mm ＜ OD Tsawg dua lossis sib npaug 114.3mm ± 0.80mm 114.3mm ＜ OD Tsawg dua lossis sib npaug 219.1mm + 1.60mm - 0.80mm 219.1mm ＜ OD Tsawg dua lossis sib npaug 457.2mm + 2.40mm - 0.80mm 457.2mm ＜ OD Tsawg dua lossis sib npaug 660.4mm + 3.20mm - 0.80mm 660.4mm ＜ OD Tsawg dua lossis sib npaug rau 863.6mm + 4.00mm - 0.80mm 863.6mm ＜ OD Tsawg dua lossis sib npaug li 1219mm + 4.80mm - 0.80mm			+ 15% '- 12.5%		L Tsawg dua lossis sib npaug li 7.3m +6.0mm - 0 hli

 

 

GNEE muab cov ntaub ntawv xeem cov ntaub ntawv pov thawj raws li EN 10204 3.1 (nrog 3.2 muaj raws li kev xaiv), suav nrog:
Thawj zeb Heat Number thiab Batch Number.
Cov ntaub ntawv xeem tiag tiag rau cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab.
Kev piav qhia ntawm cov txheej txheem kho cua sov (kev daws teeb meem annealing kub thiab txias txoj kev).
Cov txiaj ntsig ntawm flattening thiab flaring tests.

Tus nqi - ntxiv Kev Pabcuam
Precision Txiav: CNC pom txiav nrog ntev ntev tswj tsis pub dhau ± 2 hli.
Beveling: Tube kawg beveling (xws li, 30 degree, 45 degree) ua raws li cov kev xav tau tshwj xeeb vuam.
Nto Polishing: Sab hauv thiab sab nrauv polishing cov kev pabcuam xws li qib kev lag luam mus rau qib zaub mov thiab tshuaj.
Laser Marking: Ntshiab cim rau ntawm lub raj lub cev qhia cov npe, cov lus qhia, cov qauv, qib khoom, thiab cov xov tooj cua sov.

 

Packing & Shipping
GNEE muab:
Kev tiv thaiv dual: kaw nrog lub hau yas kawg thiab muab qhwv rau hauv ib lub hnab woven.
Kev ntim cov khoom siv ntxiv: Txhim kho, fumigation-cov ntoo crates pub dawb ntxiv nrog cov hlua khi hlau kom tsis txhob deformation thaum lub sijhawm thauj mus los.
Logistics Tracking: Kev koom tes nrog cov kab xa khoom loj los muab kev thauj khoom hiav txwv, huab cua thauj khoom, thiab Tuam Tshoj -Europe Railway Express cov kev pabcuam, nrog rau qhov tseeb - lub sijhawm thauj khoom thauj khoom hloov tshiab.

FAQ

Dab tsi yog qhov tseem ceeb ntawm "L" hauv TP304L?
Lub "L" sawv cev rau "Low Carbon." Cov ntsiab lus carbon hauv TP304L yog nruj me ntsis txwv rau qhov siab tshaj plaws ntawm 0.030% (thaum tus qauv TP304 tso cai txog 0.08%).

 

"Dual Certification" 304/304L yog dab tsi?
Ntau lub tuam txhab tsim cov ntaub ntawv uas ib txhij ua tau raws li qhov siab - lub zog yuav tsum tau ua ntawm TP304 thiab qis - carbon cov cai ntawm TP304L. Cov khoom no yog hu ua "304/304L Dual Certified" steel tubing. Muaj ob qho tib si zoo tshaj weldability ntawm 304L thiab lub siab txhua yam lub zog ntawm 304, nws yog tam sim no feem ntau hom ntawm cov khoom muaj nyob rau hauv lub khw.

 

TP304L puas tuaj yeem hardened los ntawm kev kho cua sov?
Tsis yog. TP304L yog austenitic stainless hlau, thiab nws cov hardness tsis tuaj yeem nce los ntawm cov txheej txheem kho cua sov (xws li quenching). Tib txoj kev los ua kom nws cov tawv tawv yog los ntawm kev ua haujlwm txias (ua haujlwm hardening) -piv txwv li, ntawm kev kos duab txias lossis txias dov.