GH4169 (Alloy 718) vs. Alloy 28 (UNS N08028): Kev Qhia Sib Piv Kev Ua Haujlwm
GH4169 (Suav tus qauv, piv txwv li, Inconel 718, UNS N07718) thiab Alloy 28 (UNS N08028) yog ob qho tib si siab -kev ua tau zoo nickel-raws li alloys tsim rau qhov chaw huab cua, tab sis lawv cov kev siv tseem ceeb sib txawv. GH4169 yog nag lossis daus{11}}cov khoom hnyav superalloy tsim los rau siab - qhov kub thiab txias tsis kam (aerospace / turbines), thaum Alloy 28 yog corrosion{14}}cov alloy resistant tsom rau superior corrosion kuj nyob rau hauv acidic, sulfur-muaj oilfield ib puag ncig 6}siab {1{1}}siab, siab tubing).
Dab tsi yog qhov tsis zoo ntawm Inconel 718?
Qhov tsis zoo thiab lwm txoj hauv kev ntawm Inconel 718
Thaum Inconel 718 boasts zoo heev txhua yam thiab corrosion kuj zog, nws kuj muaj ib co drawbacks: High nqi: Vim nws complex manufacturing txheej txheem, Inconel 718 yog kim. Yooj yim rau txheej txheem: Nws cov hardness siab ua rau cov khoom tshem tawm nyuaj thiab ua kom cov cuab yeej hnav.
1. Kev sib piv ntawm cov tshuaj muaj pes tsawg leeg ntawm GH4169 thiab Alloy 28 (wt%)
| Element | GH4169 (Inconel 718) | Alloy 28 | Qhov txawv tseem ceeb |
|---|---|---|---|
| Nickel (Ni) | 50.0 – 55.0 | 29.0 – 32.0 | GH4169 muaj ntau dua Ni |
| Chromium (Cr) | 17.0 – 21.0 | 26.0 – 28.0 | Alloy 28 muaj ntau dua Cr |
| Hlau (Fe) | Sib npaug (~18-20) | Qhov sib npaug (~ 35-40) | Alloy 28 muaj ntau dua Fe |
| Molybdenum (hli) | 2.80 – 3.30 | 3.0 – 4.0 | Alloy 28 me ntsis siab dua |
| Niobium (Nb) | 4.75 – 5.50 | – | GH4169 muaj Nb |
| Titanium (Ti) | 0.65 – 1.15 | – | GH4169 muaj Ti |
| Aluminium (Al) | 0.20 – 0.80 | – | GH4169 muaj Al |
| Copper (Cu) | Tsawg dua los yog sib npaug li 0.30 | 0.6 – 1.4 | Alloy 28 muaj Cu |
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.08 | Tsawg dua lossis sib npaug li 0.03 | Alloy 28 qis C |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 0.35 | Tsawg dua lossis sib npaug li 2.0 | Alloy 28 siab dua |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.35 | Tsawg dua los yog sib npaug rau 1.0 | Alloy 28 siab dua |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.030 | – |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.010 | – |
| Boron (B) | 0.002 – 0.006 | – | GH4169 muaj B |
| Cobalt (zeeg) | Tsawg dua los yog sib npaug li 1.00 | – | – |
| Nitrogen (N) | – | Tsawg dua lossis sib npaug li 0.10 | Alloy 28 muaj N |
Nyem rau rub tawm GH4169 alloy PDF ntaub ntawv tam sim no
2. Kev sib piv ntawm chav tsev kub cov khoom siv ntawm GH4169 thiab Alloy 28
| Khoom | HWV 4169 (718)(muaj hnub nyoog) | Alloy 28(Annealed) | Qhov zoo |
|---|---|---|---|
| Tensile zog, Qhov kawg (MPa) | Ntau dua lossis sib npaug rau 1275(185 hli) | Ntau dua lossis sib npaug rau 500 - 600 (73-87 ksi) | GH4169 (~ 120% siab dua) |
| Tensile zog, tawm los (MPa) | Ntau dua lossis sib npaug rau 1035(150 hli) | Ntau dua lossis sib npaug rau 220 - 280 (32-40 ksi) | GH4169 (~320% higher) |
| Elongation (%) | Ntau dua lossis sib npaug li 12 | Ntau dua lossis sib npaug li 35-45 | Alloy 28 |
| Txo thaj tsam (%) | Ntau dua lossis sib npaug li 15 | Ntau tshaj los yog sib npaug rau 50 | Alloy 28 |
| Hardness | 35-40 HRC | ~ 90 HRC (~ 18 HRC) | hwv 4169 |
| Modulus ntawm Elasticity (GPa) | ~200 | ~195 | Zoo sib xws |
| Qhov ceev (g / cm³) | 8.19 | 8.00 | GH4169 hnyav dua me ntsis |
3. Kev sib piv ntawm siab -kub txhua yam khoom ntawm GH4169 thiab Alloy 28
| Kub (degree) | Khoom | HWV 4169 (718) | Alloy 28 |
|---|---|---|---|
| 500 | Tensile (MPa) | ~1150 | ~450 |
| Tawm tswv yim (MPa) | ~950 | ~180 | |
| 600 | Tensile (MPa) | ~1100 | ~380 |
| Tawm tswv yim (MPa) | ~900 | ~160 | |
| 650 | Tensile (MPa) | ~1000 | ~320 |
| Tawm tswv yim (MPa) | ~850 | ~140 | |
| 700 | Tensile (MPa) | ~850 | ~260 |
| Tawm tswv yim (MPa) | ~750 | ~120 | |
| 800 | Tensile (MPa) | ~500 | ~150 |
| Tawm tswv yim (MPa) | ~450 | ~80 |
High -Tsub Muaj Zog Retention:
| Kub | GH4169 Retention | Alloy 28 Retention |
|---|---|---|
| 500 degree | ~90% | ~80% |
| 600 degree | ~86% | ~68% |
| 700 degree | ~65% | ~46% |
Cov ntsiab lus:
GH4169/718:Pom zoo tensile zog, creep zog, thiab qaug zog lub zog ntawm qhov kub thiab txias (txog650 degree, thiab txawm siab dua nyob rau hauv tej yam kev mob). Nws lub zog tuaj yeem tswj tau los ntawm kev kho cua sov ( nag lossis daus hardening ), ua rau nws zoo tagnrho rau kev tig tshuab xws li turbine blades thiab foob pob ua ntxaij. Tsis tas li ntawd, nws nthuav tawm zoo heev toughness ntawm qis kub.
alloy 28:Tsim kom ua tiav lub zog siab ntawm kwv yees li175 ° F (350 ° F), haum rau cov khoom siv downhole. Thaum nws muaj lub zog siab, nws qhov siab -kub creep zog tsis zoo liGH4169/718.
Hu rau peb cov kws tshaj lij kom pom zoo cov hlau zoo rau koj qhov project
4. Kev sib piv ntawm corrosion kuj ntawm GH4169 thiab Alloy 28
| Ib puag ncig | HWV 4169 (718) | Alloy 28 | Qhov zoo |
|---|---|---|---|
| General Atmospheric | Zoo heev | Zoo heev | Zoo sib xws |
| Oxidizing Acids (HNO₃) | Zoo | Zoo heev | Alloy 28 |
| Txo Acids (H₂SO₄, HCl) | pluag | Zoo heev | Alloy 28 |
| Phosphoric Acid | Zoo | Zoo heev | Alloy 28 |
| Chloride Pitting | Nruab nrab | Zoo heev | Alloy 28 |
| Chloride SCC | Zoo (siab Ni) | Zoo heev | Alloy 28 |
| Dej hiav txwv | Txwv tsis pub | Zoo heev | Alloy 28 |
| Qos Gas (H₂S/CO₂) | Zoo (nrog rau HT) | Zoo heev | Alloy 28 |
| Siab -Tub kub oxidation | Zoo rau 980 degree | Nruab nrab rau 500 degree | hwv 4169 |
Corrosion Resistance Summary
alloy 28:Superior rauhwv 4169nyob rau hauv high hydrogen sulfide (H₂S) thiab siab chloride ib puag ncig. Nws yog tsim tshwj xeeb los tiv thaiv pitting thiab kev ntxhov siab corrosion tawg hauv qhov tob, siab -siab, siab -kub (HPHT) acidic gas qhov dej. Nws muaj kev tiv thaiv siab rau sulfuric acid thiab phosphoric acid.
GH4169/718:Exhibits zoo heev corrosion kuj thiab oxidation tsis kam ntawm qhov kub thiab txias, ua rau nws muaj txiaj ntsig zoo nyob rau hauv aerospace tso pa ib puag ncig. Txawm li cas los xij, nws tsis yog kho kom zoo rau cov tshuaj chloride heev -muaj cov kua qaub aqueous xws liAlloy 28.
Hu rau peb los kho GH4169 cov khoom kom haum rau koj qhov project qhov ntev
5. GH4169 thiab Alloy 28 Industrial Applications
GH4169 (Inconel 718) yog haum rau:aircraft cav Cheebtsam, roj turbine engine, foob pob ua ntxaij, nuclear reactor Cheebtsam, thiab fasteners -cov ntaub ntawv uas yuav tsum tau heev heev ruaj khov nyob rau hauv high kub.
Alloy 28 (UNS N08028) yog tsim rau:Cov khoom siv hauv av hauv cov roj thiab roj ntau lawm tubing (OCTG), cov khoom ntim khoom, siab -siab siab-kub (HPHT) cov roj qaub qhov dej, thiab cov roj acid txhaj tshuaj (AGI) qhov dej. Nws kuj tseem siv rau hauv kev ua tshuaj lom neeg, cov khoom siv hluav taws xob sib hloov, thiab cov chaw hauv dej hiav txwv.
6. Cov ntsiab lus ntawm qhov sib txawv ntawm GH4169 thiab Alloy 28 xaiv
Yog tias koj xav tau lub zog siab ntawm qhov kub siab tshaj 500 degree:Xaiv GH4169/718
Yog tias koj xav tau lub zog siab hauv H, S / chloride ib puag ncig ntawm qhov kub qis dua 200 degree:Xaiv Alloy 28.
Vim li cas thiaj xaiv Gnee Alloy, Tier 1 tus neeg xa khoom thoob ntiaj teb?
Raws li tus kws tshaj lij superalloy chaw tsim khoom,Gnee Alloymuaj ntau tshaj li cov ntaub ntawv raw:
✅Zero Inclusion Guarantee:Peb cov txheej txheem VIM + VAR tshem tawm cov kev suav nrog uas ua rau qaug zog ntxov ntxov hauv cov phiaj xwm hluav taws xob.
✅Tag nrho Traceability:Txhua qhov kev txiav txim yog xa nrog ib qhoEN 10204 3.1 Mill Test Certificate (MTC)thiab cua sov- tus lej taug qab.
✅Sỉ ib:Tau txais txiaj ntsig los ntawmDirect Hoobkas Nqentawm bulk tonnage rau offshore infrastructure.
✅ Custom Fabrication:Peb muab precision txiav, centerless sib tsoo, thiab kev cai dabtsi yog khoov kom phim koj lub rooj sib txoos blueprints.
Hu rau peb tam sim no kom tau txais tus nqi xa tawm tshiab rau GH4169 hauv 2026
FAQ
Q1: Puas tuaj yeem GH4169 hloov Alloy 28 hauv cov tubing ntau lawm?
A: Theoretically yog, tab sis nws tsis yogTus nqi- zoo. GH4169 tseem kim dua. Rau ntev khiav ntawm tubing qhov twg lub zog yog qhov thib ob rau corrosion, Alloy 28 yog tus qauv kev lag luam.
Q2: Puas yog koj cov khoom siv GH4169 nruj raws li NACE MR0175?
A: Yog lawm.Rau kev txiav txim hluav taws xob, peb ua raws li cov kev daws teeb meem tshwj xeeb thiab cov txheej txheem kev laus kom cov hardness nyob rau hauv lubNACE txwv (feem ntau Tsawg dua lossis sib npaug rau 40 HRC), kom ntseeg tau tias cov khoom yog resistant rau sulfide kev nyuaj siab tawg.
Q3: Cov hlau twg muaj cov khoom siv zoo dua lub neej voj voog nyob rau hauv siab -chloride brine?
A: Alloy 28yog tsim tshwj xeeb rau chloride ib puag ncig. Thaum GH4169 tiv taus, Alloy 28's siab Chromium thiab Molybdenum cov ntsiab lus ua rau nws ruaj khov dua pitting ntau xyoo ntawm kev pabcuam.
Q4: Koj puas txhawb nqa kev txiav txim me me rau cov kws tsav dav hlau?
A: Yog lawm. Peb txhawb nqa innovation nyob rau hauv lub zog sector. Peb muabYooj yim MOQsrau cov qauv loj hauv pebCov khoom lag luam wholesale.
