GR1 vs GR3 titanium
May 20, 2026
Qhov txawv ntawm GR1 thiab GR3 yog dab tsi?
Cov ntsiab lus oxygen. Qhov ntawd yog qhov sib txawv tseem ceeb.
GR1 muaj 0.18 feem pua oxygen siab tshaj plaws. GR3 muaj 0.35 feem pua oxygen siab tshaj plaws. GR2 zaum hauv nruab nrab ntawm 0.25 feem pua.
Cov pa oxygen ntau dua txhais tau tias muaj zog dua thiab qis dua ductility.
| Khoom | GR 1 | GR 3 | GR 2 |
|---|---|---|---|
| Oxygen max | 0.18% | 0.35% | 0.25% |
| Tensile zog min | 240 MPa | 380 MPa rau | 345 MPa rau |
| Yield zog ntau yam | 170-310 MPa | 275-450 MPa | 275-450 MPa |
| Elongation min | 24% | 18% | 20% |
| Hardness (HV) | 120-200 | 180-240 | 150-220 |
GR3 muaj zog dua GR1 tab sis tsawg dua ductile.Nws yog me ntsis muaj zog dua GR2 tab sis nrog me ntsis qis elongation.
Qhov twg yog qhov muaj zog dua: GR1 lossis GR3?
GR3 muaj zog dua.
GR3 tensile zog yog 380 MPa yam tsawg kawg nkaus. GR1 yog 240 MPa yam tsawg kawg nkaus. GR3 yog kwv yees li 60 feem pua muaj zog.
Rau lub zog tawm los, GR3 sib tshooj nrog GR2. Ob leeg yog 275-450 MPa nyob ntawm qhov kub thiab txias. GR1 yog 170-310 MPa.
Qhov twg yog qhov yooj yim rau kev tsim: GR1 lossis GR3?
GR1 yooj yim dua rau kev tsim.
GR1 elongation yog 24 feem pua tsawg kawg. GR3 elongation yog 18 feem pua tsawg kawg.
Qhov 6 feem pua ntawm qhov sib txawv tseem ceeb hauv kev tsim khoom tiag.
| Kev ua haujlwm | GR 1 | GR 3 |
|---|---|---|
| Daim duab sib sib zog nqus | Zoo heev | Tsis pom zoo |
| Tight radius dabtsi yog khoov | Zoo heev | Marginal |
| U- khoov raj | Yog lawm | Kev pheej hmoo ntawm kev tawg |
| Yooj yim khoov | Yog lawm | Yog, nrog lub vojvoog loj dua |
| Flaring thiab expanding | Yog lawm | Risk ntawm kev sib cais |
Qhov twg yog GR3 titanium tiag tiag siv?
Lub zog siab ntshiab titanium fasteners.Bolts thiab screws uas xav tau lub zog ntau dua GR2 tab sis tsis tuaj yeem siv GR5 vim kev txhawj xeeb corrosion.
Cov hlab ntsha siab nrog kev sib sau nruab nrab.Cov khoom uas xav tau ob qho tib si tsim thiab siab zog dua GR2.
Marine Cheebtsam nrog lub zog siab dua.Qhov twg GR2 yog ciam teb ntawm lub zog tab sis GR5 yog overkill.
Cov khoom siv tshuaj ua haujlwm nrog cov phab ntsa tuab.Rau cov ntu tuab uas cov ntsiab lus oxygen cuam tshuam los ntawm - cov khoom tuab.
Kuv yuav xaiv li cas ntawm GR1, GR2, thiab GR3?
Xaiv GR1 yog tias:
Koj qhov yuav tsum tau kos duab sib sib zog nqus los yog nruj khoov
Formability tseem ceeb tshaj lub zog
Koj tab tom ua U- khoov raj lossis cov duab nyuaj
Xaiv GR2 yog tias:
Koj xav tau lub zog nruab nrab thiab nruab nrab formability
Koj feem yog cov yeeb nkab ncaj los yog khoov yooj yim
Koj xav tau qhov feem ntau, yooj yim nrhiav qib
Xaiv GR3 tsuas yog tias:
Koj xav tau lub zog siab dua GR2
Koj qhov chaw muaj tsawg kawg nkaus
GR5 tsis haum (feem ntau yog vim muaj kev txhawj xeeb corrosion)
Koj tau lees paub tias GR2 tsis muaj zog txaus
FAQ
1. Dab tsi yog qhov txawv ntawm GR1 thiab GR3 titanium?
Cov ntsiab lus oxygen. GR1 muaj 0.18 feem pua oxygen siab tshaj plaws. GR3 muaj 0.35 feem pua oxygen siab tshaj plaws. Cov pa oxygen siab dua ua rau GR3 muaj zog dua tab sis tsawg dua. GR1 yog softer thiab yooj yim rau kev tsim.
2. Puas yog GR3 muaj zog dua GR1?
Yog lawm, GR3 yog kwv yees li 60 feem pua muaj zog. GR3 tensile zog yog 380 MPa yam tsawg kawg nkaus. GR1 yog 240 MPa yam tsawg kawg nkaus. Rau lub zog tawm los, GR3 yog 275-450 MPa thaum GR1 yog 170-310 MPa.
3. Puas yog GR3 muaj zog dua GR2?
Me ntsis. GR3 tensile lub zog yog 380 MPa vs GR2 ntawm 345 MPa. Qhov txawv yog li ntawm 10 feem pua. Rau feem ntau cov ntawv thov, qhov sib txawv me me dhau los tseem ceeb. GR2 muaj ntau ntau thiab nrhiav tau yooj yim dua.
4. Kuv puas tuaj yeem siv GR3 rau kev kos duab sib sib zog nqus?
Tsis yog GR3 elongation tsuas yog 18 feem pua tsawg kawg. Kev kos duab sib sib zog nqus yuav tsum muaj tsawg kawg yog 20 feem pua thiab nyiam dua 24 feem pua. GR1 yog qhov kev xaiv zoo rau kev kos duab sib sib zog nqus. GR3 yuav zoo li tawg.
5. Vim li cas GR3 titanium nyuaj nrhiav?
Tsawg tus neeg yuav khoom xaj nws. GR2 npog feem ntau xav tau rau nruab nrab lub zog ntshiab titanium. Cov neeg muag khoom feem ntau tsis Tshuag GR3 vim qhov kev thov qis. Koj tuaj yeem xaj tshwj xeeb rau nws, tab sis cia siab tias yuav siv sijhawm ntev dua thiab ntau npaum li cas.
6. Puas yog GR3 kim dua GR1 lossis GR2?
Feem ntau zoo ib yam li GR2, qee zaum siab dua me ntsis. Tus nqi sib txawv me me. Qhov teeb meem loj dua yog qhov muaj. GR1 thiab GR2 muaj nyob rau hauv Tshuag ntawm ntau tus neeg muag khoom. GR3 feem ntau yog kev txiav txim tshwj xeeb.
7. GR3 titanium siv rau dab tsi?
Lub zog siab ntshiab titanium fasteners, marine Cheebtsam xav tau lub zog ntau dua li GR2, cov hlab ntsha siab nrog kev sib sau nruab nrab, thiab tuab ntu tshuaj ua haujlwm. Feem ntau cov neeg yuav khoom yeej tsis xav tau GR3.
8. Kuv puas tuaj yeem vuam GR3 titanium?
Yog lawm. Siv ERTi-2 lossis ERTi-3 muab cov hlau. Siv cov ntshiab argon tiv thaiv ntawm ob sab. GR3 welds muaj zog dua GR1 welds tab sis me ntsis ductile. Kev kho cua sov tom qab vuam tsis tas yuav tsum tau ua.
9. Lub hardness ntawm GR3 piv rau GR1 yog dab tsi?
GR3 hardness yog 180 txog 240 HV. GR1 yog 120 txog 200 HV. GR3 yog qhov nyuaj dua. Yog tias koj tab tom ua haujlwm, cia siab tias cov cuab yeej hnav ntau dua nrog GR3 piv rau GR1.
10. GR3 corrosion kuj piv rau GR1 li cas?
Yuav luag zoo ib yam. Ob leeg yog kev lag luam ntshiab titanium. Kev tiv thaiv corrosion los ntawm cov yeeb yaj kiab oxide passive, tsis yog cov ntsiab lus oxygen. GR3 tiv taus cov tshuaj tib yam li GR1: dej hiav txwv, chlorides, acetic acid, thiab dilute sulfuric acid.
11. Kuv puas tuaj yeem siv GR3 rau cov raj xa hluav taws xob?
Tsis yog rau U- khoov raj. GR3 elongation tsawg dhau. Cov hlab yuav tawg thaum khoov. Rau cov raj ncaj tsis muaj qhov khoov, GR3 ua haujlwm tab sis GR2 ntau dua. Tsis muaj qhov zoo rau kev siv GR3 hauv cov khoom siv hluav taws xob.
12. Qhov txawv ntawm GR2 thiab GR3 yog dab tsi?
GR3 muaj oxygen ntau dua (0.35 feem pua vs 0.25 feem pua). Qhov no muab GR3 me ntsis zog tensile zog (380 MPa vs 345 MPa) thiab me ntsis elongation (18 feem pua vs 20 feem pua). Qhov txawv me me. Feem ntau cov ntawv thov tsis tuaj yeem qhia qhov txawv.
13. Puas yog GR3 xav tau cov tshuab machining txawv dua li GR1?
Yog lawm. GR3 yog ib qho nyuaj thiab tsawg gummy. Siv qhov nrawm me ntsis qis dua li GR1. Cov cuab yeej hnav yuav siab dua. Siv cov cuab yeej ntse carbide thiab ntau cov coolant. GR3 chips zoo dua GR1 (tsawg stringy).
14. Puas yog GR3 pom zoo rau kev cog hniav?
Tsis yog. Kev kho mob qib ntshiab titanium yog ASTM F67 Qib 1 (GR1) lossis Qib 2 (GR2). GR3 feem ntau tsis yog siv rau kev cog qoob loo. Rau cov ntawv thov kev kho mob muaj zog dua, GR5 (Ti-6Al-4V) yog siv, tsis yog GR3.
