Titanium Qib Sib Piv: GR1, GR2, GR3, GR4, GR7
May 18, 2026
GR1 titanium yeeb nkabyog qhov softest thiab feem ntau ductile, zoo tagnrho rau kev sib sib zog nqus nqus.GR 2yog qhov kev lag luam tshaj plaws thiab siv dav, muab kev sib npaug zog thiab kev tiv thaiv corrosion.GR 7muaj palladium (Pd), drastic txhim kho corrosion kuj nyob rau hauv aggressive ib puag ncig - tab sis yog ho kim dua.
Hom thiab Composition
GR1 txog GR4 yog unalloyed titanium, nrog rau cov pa oxygen ntxiv txhawb zog tab sis txo ductility. GR7 muaj palladium, uas ua rau muaj kev txhim kho corrosion nyob rau hauv ib puag ncig hnyav.
| Qib | Hom | Lub ntsiab lus tseem ceeb | Yam ntxwv |
|---|---|---|---|
| GR 1 | CP-Ti (softest) | 99.5% Ti, Tsawg dua lossis sib npaug li 0.18% O | Siab tshaj ductility, zoo heev formability |
| GR 2 | CP-Ti (tus qauv) | 99.2% Ti, Tsawg dua lossis sib npaug li 0.25% O | Balanced zog thiab corrosion kuj |
| GR 3 | CP-Ti (lub zog nruab nrab) | 99.1% Ti, Tsawg dua lossis sib npaug li 0.35% O | Lub zog siab dua GR1 / GR2 |
| GR 4 | CP-Ti (CP muaj zog tshaj) | 98.9% Ti, Tsawg dua lossis sib npaug rau 0.40% O | Lub zog siab tshaj plaws ntawm CP qib |
| GR 7 | Ti-0.15% Pd alloy | 99.1% Ti, 0.12-0.25% Pd | Superior corrosion kuj |
Mechanical Properties
Raws li cov ntsiab lus oxygen nce los ntawm GR1 mus rau GR4, lub zog nce thiab ductility txo.
| Qib | Tensile zog (MPa) | Yield zog (MPa) | Elongation (%) | Hardness (HV) |
|---|---|---|---|---|
| GR 1 | 240-370 | 170-310 | Ntau dua lossis sib npaug li 24 | 100-150 |
| GR 2 | 345-480 | 275-410 | Ntau dua lossis sib npaug li 20 | 150-200 |
| GR 3 | 450-600 | 380-520 | Ntau dua lossis sib npaug li 18 | 200-250 |
| GR 4 | 550-750 | 485-620 | Ntau dua lossis sib npaug li 15 | 250-300 |
| GR 7 | 345-480 | 275-410 | Ntau dua lossis sib npaug li 20 | 150-200 |
Corrosion Resistance
GR7 ua tau zoo dua lwm yam CP-Ti qib hauv kev txo cov kua qaub thiab chloride- hnyav ib puag ncig vim palladium's catalytic nyhuv.
| Ib puag ncig | GR1-GR4 kev ua haujlwm | GR7 kev ua haujlwm |
|---|---|---|
| Dej hiav txwv | Zoo | Zoo heev |
| Cov tshuaj chloride | Nruab nrab | Tshwj xeeb |
| Oxidizing acids (HNO ₃) | Zoo | Zoo heev |
| Txo cov kua qaub (HCl, H₂SO₄) | pluag | Zoo heev |
| Alkaline daws | Zoo | Zoo heev |
GR1-GR4 ua tau zoo nyob rau hauv oxidizing tej yam kev mob tab sistawm tsam hauv kev txo cov acids. Rau HCl lossis H₂SO₄ ib puag ncig,GR7 yog qhov tseem ceeb.
Processing thiab Fabrication
| Qib | Formability | Weldability | Machineability |
|---|---|---|---|
| GR 1 | Zoo heev(zoo tshaj plaws rau kev kos duab sib sib zog nqus) | Zoo heev | Zoo |
| GR 2 | Zoo heev | Zoo heev | Zoo |
| GR 3 | Zoo | Zoo | Nruab nrab |
| GR 4 | Ncaj ncees (nrog rau kev tawg) | Zoo | Nruab nrab |
| GR 7 | Zoo heev | Zoo heev | Zoo |
GR1 titanium txoj kev / dabtsi yog khoovyog qhov zoo heev - GR1 yog qhov zoo dua rau cov ntawv hlau thiab cov raj sib sau. GR4 yog ib qho nyuaj rau kev tsim tab sis muaj zog dua.Yuav ua li cas weld GR1 titanium- GR1 thiab GR2 muaj weldability zoo heev; GR7 welds zoo ib yam li GR2 tab sis yuav tsum tau saib xyuas kom tsis txhob muaj kab mob.
Nqe thiab khoom siv
| Qib | Tus nqi txheeb ze | Kev Ua Lag Luam Muaj |
|---|---|---|
| GR 1 | Tsawg- Nruab nrab | Muaj dav |
| GR 2 | Nruab nrab (feem ntau economical) | Qib feem ntau |
| GR 3 | Nruab nrab -High | Kev siv tsawg |
| GR 4 | Siab | Cov ntawv thov tshwj xeeb |
| GR 7 | Siab heev (vim Pd) | Txwv, siab - siv tau |
GR1 titanium nqi ib kgqis - nruab nrab. GR2 yog qhov kev lag luam tshaj plaws thiab siv dav.GR 7Nws kim heev vim cov ntsiab lus palladium.
Daim ntawv thov
| Qib | Cov ntawv thov rau cov yeeb nkab thiab raj |
|---|---|
| GR 1 | Chemical processing linings,GR1 titanium tshav kub exchanger, marine Cheebtsam, kho mob implants (ductility-focused) |
| GR 2 | Aerospace qauv, desalination nroj tsuag,GR1 titanium tshav kub exchanger, cov cuab yeej phais |
| GR 3 | Cov hlab ntsha siab, hydraulic systems, airframe Cheebtsam |
| GR 4 | High -cov hlua khi, cov hlab ntsha cryogenic, kev cog hniav orthopedic |
| GR 7 | Kev ua tshuaj (HCl, H₂SO₄), offshore roj & roj, tshuaj reactors, huab cua hauv hiav txwv |
Qib Xaiv
| Yog tias koj qhov tseem ceeb yog ... | Xaiv... |
|---|---|
| Maximum ductility thiab formability | GR 1 |
| General corrosion kuj thiab nqi -efficiency | GR 2 |
| Lub zog siab dua GR1 / GR2 | GR 3 |
| Lub zog siab tshaj plaws ntawm CP qib | GR 4 |
| Tsis tshua muaj corrosion kuj (HCl, ntub chlorine, chlorides) | GR 7(zoo tshaj tab sis kim) |
FAQ
Q1: Dab tsi yog qhov txawv ntawm GR1, GR2, GR3, GR4, thiab GR7 titanium yeeb nkab?
A: GR 1muaj qhov siab tshaj plaws ductility (Ntau dua lossis sib npaug ntawm 24% elongation) thiab lub zog qis tshaj plaws - qhov zoo tshaj plaws rau kev sib sib zog nqus nqus. GR2 muaj qhov sib npaug ntawm lub zog thiab kev tiv thaiv corrosion - qhov kev lag luam tshaj plaws. GR3 thiab GR4 muaj zog ntxiv tab sis txo cov ductility.GR 7muaj 0.12-0.25% palladium, muab tshwj xeeb corrosion kuj nyob rau hauv txo cov acids thiab chlorides, nrog rau lub zog zoo sib xws rau GR2.
Q2: Qib twg muaj zog tshaj - GR1, GR2, GR3, GR4, lossis GR7?
A: GR 4yog cov khoom lag luam zoo tshaj plaws titanium qib (tensile 550-750 MPa, yield 485-620 MPa). GR3 yog tom ntej (450-600 MPa tensile), ces GR2 thiab GR7 (345-480 MPa tensile), thiab thaum kawgGR 1(240-370 MPa tensile).
Q3: Qib twg yog qhov zoo tshaj plaws?
A: GR 1yog qhov feem ntau ductile, nrog tsawg kawg yog 24% elongation. Qhov no ua rauGR1 titanium rau kev kos duab sib sib zog nqusqhov kev xaiv zoo tshaj plaws rau cov duab sib txawv xws li hauv qab, cov pob qij txha nthuav dav, thiab sib sib zog nqus- kos cov khoom.
Q4: Dab tsi yog qhov txawv ntawm GR2 thiab GR7 titanium raj?
A: GR 2thiabGR 7muaj cov khoom zoo sib xws. Qhov txawv tseem ceeb yog qhov ntawdGR 7muaj 0.12-0.25% palladium, muab nws tshwj xeeb corrosion kuj nyob rau hauv txo acids (HCl, H₂SO₄) thiab chlorides - ib puag ncig uas GR2 ua tsis zoo. Txawm li cas los xij,GR 7yog ho kim dua.
Q5: Qib twg yog qhov zoo tshaj plaws rau kev siv dej hiav txwv?
A: GR 7muaj kev tiv thaiv corrosion zoo heev hauv dej hiav txwv.GR 1dhauGR 4nyob zoo. Rau feem ntau cov kev siv dej hiav txwv,GR 1los yog GR2 txaus. Rau huab cua marine ib puag ncig lossis offshore roj & roj,GR 7pom zoo.
Q6: GR1 titanium yeeb nkab puas tuaj yeem siv rau kev sib hloov cua sov?
A: Yog,GR1 titanium tshav kub exchangercov raj yog siv nyob rau hauv chemical processing thiab marine applications. Rau qhov yuav tsum tau muaj zog dua, GR2 lossis GR3 kuj muaj. Rau huab cua corrosive (HCl, H₂SO₄),GR 7yog yuav tsum tau.
Q7: Puas yog GR1 titanium yeeb nkab haum rau kev cog qoob loo?
A: Yog,kev kho mob qib 1 titanium(ASTM F67 grade 1) yog siv rau kev cog qoob loo uas qhov ductility yog qhov tseem ceeb. Rau kev thauj khoom- cov kabmob cog cog uas xav tau lub zog siab dua, GR4 yog siv rau kev cog hniav orthopedic.
Q8: Cov tshuaj muaj pes tsawg leeg ntawm GR1 vs GR7 yog dab tsi?
A: GR1 titanium tshuaj muaj pes tsawg leegyog 99.5% Ti, Tsawg dua lossis sib npaug rau 0.18% O, Tsawg dua lossis sib npaug rau 0.20% Fe.GR 7muaj cov ntsiab lus zoo sib xws ntxiv rau 0.12-0.25% palladium, uas ua rau txhim kho corrosion kuj.
Q9: Yuav ua li cas vuam GR1 titanium yeeb nkab?
A: Yuav ua li cas weld GR1 titanium- GR1 thiab GR2 muaj weldability zoo heev. Siv GTAW (TIG) nrog ERTi-1 muab tub lim rauGR 1. GR 7welds zoo ib yam li GR2; siv ERTi-7 muab tub lim. Kev tiv thaiv argon kom raug yog qhov tseem ceeb rau txhua qib.
Q10: Qib twg yog tus nqi ntau tshaj - siv tau?
A: GR 2yog qhov kev lag luam tshaj plaws thiab siv dav.GR 1yog tsawg- tus nqi nruab nrab, zoo tagnrho thaum formability yog qhov tseem ceeb.GR 7yog tus nqi siab heev thiab yuav tsum tsuas yog siv thaum muaj kev tiv thaiv corrosion heev.
Q11: Lub zog tawm ntawm GR1 titanium yeeb nkab yog dab tsi?
A: GR1 titanium yield zogQhov siab ntawm 170-310 MPa. GR2: 275-410 MPa, GR3: 380-520 MPa, GR4: 485-620 MPa, GR7: 275-410 MPa.
Q12: Puas yog GR7 tsim nyog tus nqi siab dua?
A: GR 7Nws kim heev vim cov ntsiab lus palladium. Nws tsim nyog tus nqi tsuas yog thaum daim ntawv thov xav tau tshwj xeeb corrosion kuj hauv kev txo cov kua qaub (HCl, H₂SO₄) lossis chlorides. Rau ib puag ncig corrosive, GR2 yog tus nqi ntau dua - zoo.
Q13: Dab tsi yog qhov ceev ntawm titanium qib 1 yeeb nkab?
A: Titanium qib 1 ceevyog 4.51 g / cm³ - tib yam rau txhua qib CP (GR1 txog GR7).
Q14: GR1 titanium yeeb nkab puas siv tau rau cov hlab ntsha siab?
A: GR 1tsis pom zoo rau cov hlab ntsha uas xav tau lub zog siab. GR3 lossis GR4 zoo dua rau cov hlab ntsha siab.GR 1yog qhov zoo dua rau cov khoom siv tshuaj lom neeg thiab cov khoom siv hluav taws xob.
Q15: Qhov sib txawv hardness ntawm GR1 thiab GR4 yog dab tsi?
A: Qib 1 titanium hardnessyog 100-150 HV. GR4 hardness yog 250-300 HV - kwv yees li ob zaug nyuaj. Qhov no qhia txog lub zog tseem ceeb ntawm GR1 rau GR4.
