ASTM A376 TP347H Seamless austenitic steel raj rau siab - qhov kub thiab txias hauv cov nroj tsuag fais fab
ASTM A376 TP347H yog ib qho kev qhia tshwj xeeb rau seamless austenitic stainless hlau tubing haum rau siab - kub, siab - kev siv siab hauv cov nroj tsuag hluav taws xob, xws li superheaters thiab cov cua kub exchanger raj. Nws cov yam ntxwv tseem ceeb yog siab - qhov kub thiab txias tsis kam, ua tsaug rau cov nyhuv stabilizing ntawm niobium hauv cov hlau, uas tiv thaiv carbide nag lossis daus. Cov raj no xav tau kev kho cua sov thiab ua rau cov khoom siv kho tshuab thiab tsis yog- kuaj kev puas tsuaj, thiab tuaj yeem ua kom sov- tiav lossis txias - tiav.
Dab tsi yog kev siv ntawm 347 stainless hlau?
Nws yog ib qho qis- carbon steel uas muaj chromium, nickel, thiab manganese. Cov hlau stainless no muaj kev tiv thaiv corrosion piv rau 340. 347 round bars yog siv dav hauv kev lag luam xws li kev ua zaub mov, kev ua tshuaj, thiab roj refining. Tsis tas li ntawd, round bars kuj tseem siv tau los tsim cov pwm rau siab -siab tuag casting.
Tshuaj muaj pes tsawg leeg ntawm TP347H (UNS S34709)
| Element | Kev xav tau (%) | Sau ntawv |
| Cov pa roj carbon (C) | 0.04–0.10 dr hab | Tswj kom siab -kub stability |
| Manganese (Mn) | max 2.00 Nws | |
| Phosphorus (P) | 0.045 max | |
| Sulfur (S) | 0.030 max | |
| Silicon (Si) | max 1.00 Nws | |
| Nickel (Ni) | 9.0–13.0 Nws | Austenite stabilizer |
| Chromium (Cr) | 17.0-19.0 Nws | Oxidation kuj |
Mechanical Properties ntawm TP347H (UNS S34709)
| Khoom | Kev xav tau |
| Qib | TP 347 H |
| UNS npe | S34709 |
| Tensile zog, min | 75 ksi [515 MPa] |
| Yield zog, min | 30 ksi [205 MPa] |
| Elongation hauv 2 hauv.., min | 35% (Longitudinal) |
TP347H Cov Lus Qhia Txog Kev Xeem
| Qeb | Hom kev xeem | Cov Lus Qhia Tseem Ceeb |
| Siab / NDE | Hydrostatic Test | Txhua cov yeeb nkab tau kuaj ib A999 / A999M (tshwj tsis yog NPS≥24 nrog NH cim) |
| NDE (UT/ET) | Yuav tsum tau ua rau tag nrho cov kav dej (chaw tsim tshuaj paus txoj kev xaiv) | |
| Neeg kho tshuab | Tensile Test | 1 test per lot (≤100 pipes); 2 tests for >100 cev |
| Flattening Test | 5% ntawm batch furnace kav; min. 2 cov kav dej rau cov txheej txheem txuas ntxiv | |
| Tshuaj | Kev tshuaj xyuas khoom | Yuav tsum tau rau txhua lub yeeb nkab ntev (kev tsis lees paub tus kheej) |
| Kev kuaj tshwj xeeb | Transverse Tension | Yuav tsum tau rau NPS≥8 kav dej (txhua qhov kawg) |
| Etching Test | Txheeb xyuas homogeneity ntawm txoj kev E381 | |
| Ultrasonic Test | Tag nrho - ntev scanning nrog calibration notches | |
| Intergranular Corrosion | Xyaum A262 (raws li -txoj kev xa tuaj / rhiab heev) |
ASTM A376 TP347H Seamless Austenitic Steel Tube - Daim Ntawv Thov Qhov Zoo
1. Superior High -Kev Ua Haujlwm Kub, haum rau cov nroj tsuag fais fab
Zoo heev creep kuj mus txog 750 ° C (1382 ° F) - zoo tagnrho rau superheater thiab reheater daim ntaub ntawv
Kev tiv thaiv oxidation zoo heev ua kom ntev - lub sijhawm ua haujlwm ruaj khov nyob rau hauv siab - qhov kub thiab txias qhov chaw ib puag ncig
2. Txhim kho kev nyab xeeb thiab kev ntseeg siab ntawm cov txheej txheem tseem ceeb
Seamless qauv nrog cov phab ntsa tuab tuab tshem tawm cov ntsiab lus tsis muaj zog nyob rau hauv cov xwm txheej hnyav
Niobium-stabilizing muaj pes tsawg leeg tiv thaiv intergranular corrosion thaum nruam siab- kub ua haujlwm
3. Tus nqi -Kev daws teeb meem tsim hluav taws xob zoo
Kev pab lub neej ntev, txo kev tu ntau zaus thiab hloov cov nqi
Optimized thermal efficiency pab cov nroj tsuag muaj kev pom kev ua haujlwm zoo
4. Cov khoom siv txhawb nqa kev siv fais fab
Siab -Tsub Muaj Zog: Ua kom muaj kev ncaj ncees nyob rau hauv thermal cycling tej yam kev mob
Corrosion Resistance: Haum rau ntau hom roj, nrog rau cov thee, natural gas, thiab biomass zog
Gnee Steel tshwj xeeb hauv kev tsim khoom ntawm ntau yam khoom siv stainless hlau. Gnee Steel cov khoom ntim khoom suav nrog: Hlau Strapping: Cov kav dej nrog ib txoj kab uas hla ntawm 3 ntiv tes los yog tsawg dua yog feem ntau khi ua ke nrog polypropylene zaj duab xis los tiv thaiv xeb thaum thauj dej hiav txwv, thiab tom qab ntawd khi nrog cov hlua hlau. Ntoo Cases / Crates: Cov kav dej feem ntau yog ntim rau hauv cov rooj ntoo lossis cov thawv los tiv thaiv cov kav dej thaum lub sij hawm thauj mus los, tshwj xeeb tshaj yog cov uas ntev dua los yog muaj qhov loj dua. Seaworthy Export Ntim: Cov neeg muag khoom feem ntau siv cov txheej txheem seaworthy export ntim, uas tuaj yeem suav nrog ntau yam khoom siv thiab cov txheej txheem los tiv thaiv cov kav dej thaum thauj. Tarpaulin Ntim: Qhov no tiv thaiv los nag, dej hiav txwv, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub thawv xa khoom thaum thauj. Gnee Steel tshwj xeeb hauv kev tsim thiab muag cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob, tsheb, thiab hluav taws xob nuclear, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy pricing lossis customized alloy cov ntaub ntawv daws teeb meem, thov hu rau peb rau ib qho kev tsocai:ru@gneesteelgroup.com
