ASTM A333 GR6 Seamless Carbon Steel Yeeb Nkab Rau Cov Lus Qhia Kub Kub
A333 Gr.6 cryogenic seamless yeeb nkab yog siv los tsim cov ethylene, propylene, urea, hluavtaws ammonia, N-P-K compound chiv, thiab kev lag luam tshuaj siv roj av, tshuaj, roj, thiab cov thee ua raw cov ntaub ntawv rau ntxuav, purification, thiab desulfasurizing. Nws kuj tseem siv rau hauv kev lag luam khoom siv cryogenic thiab hauv ultra- tsis tshua muaj kub cia txias rau kev thauj khoom ultra- qis kub liquefied gases ntawm cov kav dej thiab cov yeeb nkab. Lub zog cuam tshuam ntawm qis- alloy steel Gr.6 cryogenic seamless yeeb nkab yog tsawg li -80℃thaum tseem ua tau raws li tus qauv yuav tsum tau ntawm -45℃. Nws muaj peev xwm los hloov 2Ni cryogenic steels Gr.7 thiab Cr.9 (tso cai kub tsis qis dua -75 degree), muab cov nqi-zoo thiab txo cov nqi khoom siv rau cov neeg siv.
ASTM A333 GR6 LTCS yeeb nkab specification
Qib sib npaug ntawm Qib 6 ASTM A333 Yeeb Nkab
| qub | Tshiab | |||
| Kev ua tiav | Txuj | Khoom siv | Txuj | Khoom siv |
| Seamless | ASTM A333 Cov khoom lag luam | QIB 6 | TS EN 10216-4 | P265 NL |
| DIN | EN | BS | NFA | ASTM | ASME |
| DIN 17178 Qib FGP 28 | EN P265NL Qib 10216-4 | NFA A 36-2051) Qib A 42 AP | ASTM A333 Qib 6 | ASME SA 333 Qib 6 | UNI C20 |
ASTM A333 Qib 6 Chemical Composition
| CHEMICAL | LIMITS | C | Mn | P | S | Si | Cu | Ni | Cr | Mo | V | Nb |
| ASTM A333 GR 6 | MIN | 0.29 | 0.10 | |||||||||
| MAX | 0.30 | 1.06 | 0.025 | 0.025 | 0.40 | 0.40 | 0.30 | 0.12 | 0.08 | 0.02 |
ASTM A333 Qib 6 Mechanical Property
| KHOOM | TS (MPA) | YS (MPA) | EL % |
| ASTM A333 GR 6 | 415 nqi | 240 feeb | 30 feeb |
A333 Gr6 seamless steel kav, vim lawv qhov qis dua - qhov kub thiab txias, tau siv dav hauv cov teb hauv qab no:
1. Kev lag luam Petrochemical
Hauv cov nroj tsuag tshuaj cryogenic xws li ethylene thiab propylene nroj tsuag, GR6 steel kav yog siv los thauj thiab khaws cia cov xov xwm cryogenic, ua lub luag haujlwm tseem ceeb hauv cryogenic purification systems rau hluavtaws ammonia thiab urea ntau lawm. Lub tuam txhab loj petrochemical lub tsev ntxhua khaub ncaws cryogenic methanol tau ua tiav qhov teeb meem ntawm kev tawg ntawm cov kav dej hauv qab -40℃tej yam kev mob los ntawm kev siv GR6 seamless steel kav.
2. Kev lag luam roj thiab LNG
Raws li cov khoom tseem ceeb rau cov roj liquefied natural gas (LNG) cia tso tsheb hlau luam thiab cov kav dej thauj mus los, GR6 steel kav kom muaj kev nyab xeeb ua haujlwm hauv ultra- qhov kub thiab txias ntawm -162℃. Nyob rau hauv ib qhov project LNG txais davhlau ya nyob twg nyob rau hauv kuv lub teb chaws, GR6 steel kav tau siv nyob rau hauv lub cryogenic lub ntsiab pipeline, thiab tau ua hauj lwm yam tsis muaj to los yog tawg teeb meem rau hnub tim.
3. Cov tub yees thiab Cryogenic Engineering
Nyob rau hauv ultra- tsis tshua muaj kub cia txias thiab cov khoom siv sim cryogenic, GR6 steel kav yog siv rau hauv cov tub yees txias, ua tau raws li cov kav dej ntawm cov khoom siv hluav taws xob cryogenic.
4. Kev lag luam fais fab
Hauv qhov nruab nrab cua txias ntawm nuclear fais fab nroj tsuag, GR6 steel kav yog siv nyob rau hauv coolant piping systems vim lawv tsis kam mus hydrogen -induced cracking (HIC), kom ntseeg tau tias kev nyab xeeb ntawm lub nuclear reactor cryogenic voj.
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