ASTM A312 TP347 seamless raj rau pyrolysis rauv
Steel qauv: ASTM A312
Steel Qib: TP347
Txheej txheem :: Kub dov / kub expansion / txias drawn / txias dov
Nto: Pickling 2B nto kho
Phab ntsa Thickness: 0.89-60mm
Hla -Section Shape: RoundOutside Diameter: 6mm ~ 630mm (1/8 "~ 24")
Thickness: 1mm-60mm (Sch5 ~ Schxxs)
Proctor: Plastic Cap
Pob: Pob
Kev tshuaj xyuas: Nrog Kev Ntsuas Hydraulic, kuaj Ultrasonic lossis X-ray Test
Daim ntawv pov thawj ISO9001; 2015
Xa E-mail:info@gneestainless.com
Tel:+8615824687445
Hauj lwm lawm
Gnee Steel (Tianjin) Co., Ltd. yog ib qho ntawm feem kev manufacturers thiab lwm tus neeg ntawm astm a312 tp347 seamless raj rau pyrolysis rauv nyob Suav teb. Nrog kev paub ntau, peb sov siab txais tos koj rau cov lag luam wholesale customized astm a312 tp347 seamless raj rau pyrolysis rauv los ntawm peb lub hoobkas. Rau nqe kev sab laj, tiv tauj peb.
Puas yog koj tab tom nrhiav rau seamless tubing uas muaj qhov tshwj xeeb siab - qhov kub thiab txias, muaj peev xwm tiv taus qhov kev ua haujlwm ntev - lub sijhawm ua haujlwm hauv pyrolysis rauv, thiab tseem tsis muaj kev nkag mus tsis ua hauj lwm lossis intergranular corrosion? GNEE yog tus tsim khoom raws caij nyoog nrog kev paub dhau los hauv kev xa tawm stainless hlau tubing rau cov haujlwm petrochemical, tuav cov ntawv pov thawj xws li TRCU thiab PED. Peb muab cov qib siab - zoo ASTM A312 TP347 seamless steel raj, tshwj xeeb yog tsim los siv rau hauv pyrolysis furnaces.
Tag nrho cov ASTM A312 TP347 seamless raj yog muab rau hauv ib qho kev daws teeb meem -annealed mob (kub-kho ntawm 1050-1100℃tom qab txias ceev) kom tshem tawm cov kev ntxhov siab sab hauv. Cov khoom muaj pes tsawg leeg-featuring C Tsawg dua los yog sib npaug rau 0.08%, Cr 17.0–19.0%, Ni 9.0–13.0%, thiab Nb Ntau dua lossis sib npaug rau 8 × C- ua haujlwm zoo tiv thaiv nag lossis daus ntawm chromium carbides, yog li ua kom muaj kev ruaj ntseg ntev dua {{15} 347 kev pabcuam.
Peb cov ASTM A312 TP347 siab -kub stainless hlau raj tau txais txias dov, pickling, thiab passivation txheej txheem. Sab nraud txoj kab uas hla yog tswj nruj me ntsis hauv ± 0.05 hli, thiab sab hauv phab ntsa roughness yog khaws cia ntawm Ra tsawg dua lossis sib npaug li 0.8 μm; qhov no ua rau ib tug du, uniform puab nto uas zoo minimizes media fouling thiab tshav kub hloov losses. Nrog rau lub zog creep rupture ntawm Greater los yog sib npaug rau 15 MPa ntawm 850℃thiab lub zog tensile ntawm Greater los yog sib npaug rau 515 MPa nyob rau hauv chav tsev kub, cov hlab no muaj peev xwm ua tau raws li cov kev xav tau nruj heev uas cuam tshuam nrog ntev - lub sij hawm cyclic thermal stresses.
ASTM A312 TP347 Seamless Tubes Specification
| Feature | (TP 347 / TP 347H) |
| Qib sib piv | TIAB SA 347:Standard stabilized qib /TP 347 H:High -carbon version rau kev nkag siab zoo dua |
| Kev tsim khoom | Seamless (Cold Drawn los yog Kub Rolled), Bead - tshem tawm kom zoo nyob hauv ntws |
| Txuj kev ua raws cai | ASTM A312 / ASME SA312 (Standard Spec rau Seamless Austenitic SS Yeeb Nkab) |
| Kev Pabcuam Kub | Pom zoo rau 400℃rau 815℃(750℃F txog 1500℃F) |
Chemical Composition (Mass%)
| Element | TP347 (%) | TP347H (%) |
| Cov pa roj carbon (C) | 0.08 max | 0.04 – 0.10 |
| Niobium (Nb) |
10×C min, 1.10 max |
8×C min, 1.10 max |
| Chromium (Cr) | 17.0 – 19.0 | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 13.0 | 9.0 – 13.0 |
| Manganese (Mn) | max 2.00 Nws | max 2.00 Nws |
Mechanical & Physical Properties
| Khoom | Tus nqi (ntawm chav Temp) |
| Tensile zog |
Ntau dua lossis sib npaug515 MPa (75 ksi) |
| Lub zog muaj zog (0.2%) |
Ntau dua lossis sib npaug205 MPa (30 ksi) |
| Elongation (hauv 2 nti) |
Ntau dua lossis sib npaug35% |
| Loj Loj | ASTM Tsis muaj . 7 lossis coarser (rau 347H) |
ASTM A999 Dimensional kam rau ua
Qhov tseem ceeb rau qhov tseeb haum- nce thiab vuam siv ASME B16.25 bevels.
| Dimension | Ua siab ntev | Cov lus qhia rau kev yuav khoom |
| Sab nraud Diameter (OD) |
± 0.4mm txog ± 1.5mm |
Nws txawv ntawm cov yeeb nkab loj (NPS). |
| Phab ntsa Thickness (WT) |
−12.5% mus rau +15% |
Yam tsawg kawg ntawm phab ntsa thickness yuav tsum tau lav rau siab. |
| Kev ncaj |
Tsawg dua lossis sib npaug li 1.5mm / m Tsawg dua lossis sib npaug li 1.5mm / m |
Qhov tseem ceeb rau cov kav hlau ntev ntev kom tsis txhob muaj kev vibration. |
| Sab hauv Diameter (ID) | Tswj kom ntws | Minimizes "coking" (carbon buildup) nyob rau hauv qhov cub. |
Qhov twg vuam muab tub lim hlau yuav tsum raug xaiv rau TP347 piping?
ER347 los yog E347 series vuam consumables. Cov hlau muab tub lim no yuav tsum muaj Niobium los xyuas kom meej tias cov vuam muaj qhov sib npaug ntawm qhov sib npaug ntawm cov yeeb nkab hlau. Rau cov hauv paus hla, TIG (GTAW) txheej txheem vuam yog pom zoo kom ua tiav qhov huv, nkag mus rau qhov vuam.
GNEE puas tuaj yeem muab cov raj nrog ASME B16.25 Beveling?
Yog lawm. Rau cov phiaj xwm pyrolysis rauv, peb muab qhov tseeb- ua tiav raws li ASME B16.25 (feem ntau yog 37.5℃ib bevel). Qhov no tso cai rau tam sim ntawd ntawm - qhov chaw vuam, ua kom muaj kev sib haum xeeb zoo (hauv paus qhov sib txawv) thiab siab - zoo radiographic (X-ray) cov txiaj ntsig.
ASTM A312 TP347 Seamless Tubes Chaw tsim tshuaj paus
GNEE ua haujlwm tshwj xeeb cov kab ntau lawm rau stainless hlau seamless raj: lub hli ntau lawm muaj peev xwm rau TP347/347H tshwj xeeb stainless hlau seamless hlab yog kwv yees li 300 mus rau 500 tons.
Lub sij hawm txhuas nyob ntawm qhov kev txiav txim ntim thiab seb puas muaj kev kho cua sov tshwj xeeb (Stabilizing Annealing) yuav tsum tau ua.
Ex-Tshuag Specifications:
7-10 hnub. Lub sijhawm no feem ntau suav nrog kev ua tiav qhov kawg, kev ua tiav, kev lis kev cai, thiab ntim khoom.
30 – 45 days. This timeframe encompasses: billet preparation -> cold drawing/cold rolling -> solution treatment -> stabilizing heat treatment (a critical process for TP347) -> inspection ->ntim.
Yuav Tsum Tau Ntsuas & Kev Tswj Xyuas Zoo (NDT)
Pyrolysis raj yog cov khoom "Critical Path"; Cov kev xeem no tsis yog - sib tham tau rau GNEE cov khoom.
| Hom kev xeem | Technical Standard | Lub hom phiaj |
| Hydrostatic Test | ASTM A999 / ASME B31.3 | Xyuas kom siab- nruj nruj. |
| Kev kuaj ultrasonic (UT) | ASTM E 213 | Tshawb nrhiav sab hauv longitudinal & transverse flaws. |
| Eddy Tam sim no Test (ET) | ASTM E426, ASTM E426 | Txheeb xyuas qhov chaw thiab ze rau - qhov chaw tsis xws luag. |
| Kev xeem IGC (Kev xyaum E) | ASTM A262, ASTM A262 | Tshawb xyuas kev tiv thaiv rau Intergranular Corrosion. |
| Stabilizing Thaum tshav kub kub kho | 850℃- 900 degree | Ua tiav tom qab cov tshuaj annealing kom ua tiav Nb-carbide tsim. |
Ntim Txoj Kev
Kev Tiv Thaiv Kawg:
Txhua lub raj kawg yog haum nrog lub kaus mom yas los tiv thaiv kev nkag ntawm cov khoom txawv teb chaws.
Rau cov raj uas muaj ua ntej -machined ASME B16.25 bevels, lub tes tsho roj hmab ntxiv yog siv los tiv thaiv cov weld bevels los ntawm deformation los ntawm kev cuam tshuam.
Hexagonal Bundling: Muaj feem xyuam rau me me - mus rau - nruab nrab txoj kab uas hla; securely bundled siv steel straps.
Premium Wooden Case Packing (pom zoo): Rau siab -precision TP347H raj siv hauv pyrolysis furnaces, kev siv fumigation-free ntoo crates lossis steel-frame crates raug pom zoo los xyuas kom meej tias tsis muaj dabtsi yog khoov lossis deformation tshwm sim thaum lub sij hawm ntev - hiav txwv thauj.
Txhua lub raj muaj cov cim meej stenciled (qhia Qib, Standard, Loj, thiab Kub Tsis Muaj). Lub ntim sab nrauv yog affixed nrog stainless hlau shipping cim npe.
Cim npe nrov: ASTM A312 TP347 seamless raj rau pyrolysis rauv, Tuam Tshoj ASTM A312 TP347 seamless raj rau pyrolysis rauv manufacturers, hoobkas
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