ASTM A387 Qib 22 Chav Kawm 2yog ib qib tshwj xeeb ntawm chromium-molybdenum (Cr-Mo) alloy steel phaj, uas yog them los ntawm ASTM A387 specification rau alloy steel daim hlau npaj rau welded boilers thiab siab hlab ntsha nyob rau hauv siab kub kev pab cuam. Nws yog ib qho qis- alloy siab- lub zog hlau nrog nominal 2.25% chromium thiab 1.0% molybdenum ua cov ntsiab lus tseem ceeb alloying, ntxiv los ntawm kev tswj hwm cov nyiaj ntawm carbon, manganese, silicon, thiab lwm yam ntsiab lus. Tus cwj pwm los ntawm kev kub siab zoo heev -kub creep tsis kam, oxidation tsis kam, thermal stability, thiab corrosion kuj los txo cov xov xwm xws li hydrogen thiab hydrogen sulfide, nws yog feem ntau raug rau normalizing + tempering tshav kub kho kom ua tau zoo dua txhua yam khoom. Cov qib no yog siv dav hauv high{12}} kub thiab siab - kev lag luam siab xws li roj thiab roj, petrochemical, thee chemical, thiab lub zog tsim hluav taws xob, feem ntau yog siv rau kev tsim cov hlab ntsha siab, boilers, kub exchangers, thiab lwm yam khoom tseem ceeb.
Tshuaj muaj pes tsawg leeg
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A387 Gr.22 CL.2Tshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
Cr |
Mo |
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A387 Gr.22 Cl.2 |
0.04-0.15 |
0.50 |
0.30-0.60 |
0.035 |
0.035 |
1.88-2.62 |
0.85-1.15 |
Mechanical Property
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Qib |
A387 Gr.22 CL.2Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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A387 Gr.22 Cl.2 |
mm |
Min Mpa |
Mpa |
Tsawg% |
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t Tsawg dua lossis sib npaug li 50 |
310 |
515-690 |
18 |
|
|
50<> |
- |
- |
- |
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Cov ntawv thov tseem ceeb
Cov Khoom Siv Hluav Taws Xob & Boilers:Nws lub hom phiaj tseem ceeb yog nyob rau hauv welded hlab ntsha thiab boilers ua hauj lwm nyob rau hauv siab kub, resisting creep thiab thermal stress.
Roj & Roj Kev Lag Luam:Siv rau lub tank cia, kav dej (onshore/offshore), txheej txheem nkoj, thiab condensers tuav dej kub, chav, hydrocarbons, thiab qaub (sulfide{0}}muaj) roj.
Kev ua tshuaj lom neeg:Qhov zoo tshaj plaws rau cov khoom siv tshuaj hauv cov nroj tsuag uas muaj qhov kub thiab txias thiab cov khoom corrosive, nrog rau cov khoom siv hluav taws xob thiab cov reactors.
Kev tsim hluav taws xob:Siv nyob rau hauv cov chaw tsim hluav taws xob rau cov khoom siv uas xav tau siab - qhov kub thiab txias zog, xws li cov tshuab hluav taws xob.
Siab -Tub Ntsig & Piping:Haum rau kev thauj cov kua dej kub thiab cov pa roj hauv ntau qhov chaw ua haujlwm.
Vim li cas thiaj xaiv peb:
Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
Koj tuaj yeem tau txais cov khoom hloov pauv, zeb xa khoom nrog txo lub sijhawm tsim khoom.
Peb tau mob siab rau peb cov neeg siv khoom. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
Tau txais cov lus muaj nuj nqis rau ASTM A387 Qib 22 Chav Kawm 2, Hu rau GNEE Steel.
ASTM A387 Qib 22 Chav Kawm 2 muaj dab tsi, thiab qhov twg corrosive nruab nrab ib puag ncig nws tsim nyog rau?
Cov khoom no muaj kev tiv thaiv corrosion zoo los txo cov xov xwm xws li hydrogen, hydrogen sulfide (H₂S), thiab carbon monoxide (CO). Nws kuj tuaj yeem tiv taus siab -kub oxidation thiab me ntsis acid- puag corrosion. Nws yog qhov tshwj xeeb tshaj yog tsim rau kev ua cov roj av qaub, kev kho cov roj av, thiab lwm yam kev ua haujlwm uas muaj cov roj corrosive.
ASTM A387 Qib 22 Chav Kawm 2 ua haujlwm li cas hauv cov ntsiab lus siab -kub tsis kam, thiab nws qhov ntsuas kub npaum li cas?
Cov khoom no nthuav tawm zoo heev -kub creep tsis kam, oxidation tsis kam, thiab thermal stability. Nws tuaj yeem tuav cov khoom siv kho tshuab zoo nyob rau hauv ntev - lub sij hawm siab - qhov kub thiab txias yam tsis muaj deformation yooj yim los yog puas. Nws cov pa siv tau qhov kub thiab txias yog -29℃txog 593 degree, thiab nws tuaj yeem ua haujlwm ruaj khov hauv cov khoom siv kub kub hauv kev lag luam xws li petrochemicals thiab hluav taws xob fais fab.