ASTM GRADE 23 TITANIUM: 6AL-4V ELI

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ALPHA-BETA ALLOY TITANIUM

 

 

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ALPHA-BETA ALLOY TITANIUM GRADE 23: 6AL-4V ELI
Chemical Composition (%)
(Max. values unless range is shown)		 0.08 C; 0.13 O, 5.5/6.5 AL; 0.25 FE; 3.5/4.5 V;
0.015 H (sheet); 0.0125H (bar); 0.0100 H (billet)
MILL ANNEALED
TENSILE PROPERTIES		 Guar. R.T. Min. Typical Cryogenic Prop.
-320 F - - - - - - - -
Ultimate Strength (psi) 130,000 220,000
Yield Strength (psi)0.2% offset 120,000 205,000    
Elongation in 2" (%)
Sheet > 0.025 thick		 10 14    
Reduction in Area (%) Bar 25      
ALLOY MECHANICAL PROPERTIES
Stress Rupture
in Time Shown		 Stress (psi)
Time (Hrs.)
Stress and Time
to Produce Elongation
Shown (Creep)		 Stress (psi)
Time (Hrs.)
Creep (%)
Charpy V-Notch Impact (ft.-lbs.) at Room Temperature 18
Bend Radius Under 0.070" thick 4.5 X Thickness
0.070" And Over 5.0 X Thickness
Welded Bend Radius 60 - 10.0 X Thickness
Hardness Rc35
ALLOY PHYSICAL PROPERTIES
Beta Transus (F ± 25) 1810
Coefficient of Thermal Expansion (10-6in./in./F) 32-212 5.0
32-600 5.3
32-1000 5.6
32-1200 5.9
32-1500 6.1
Density (lbs./cu. in.) 0.160
Melting Point, Approx (F) 3200
Electrical Resistivity at Room Temp. (Microhms cm) 171
Modulus Elasticity - Tension (106 psi) 16.5
Modulus Elasticity - Torsion (106 psi) 6.1
Thermal Conductivity
(Btu/hr/sq. ft./F/ft.)		 4.2 at Room Temperature
Specific Heat (Btu/lb./F) at Room Temp. 0.135
Weldability Fair
Annealing Temp. (F) Full 1300 - 1525°/15 Min. - 2 Hrs,; Air Cool
Stress Relief 900-1200°/1 Min. - 4Hrs; Air Cool
Forging* Temp. (F) Blocking 1750 - 1800°
Finishing 1650 - 1750°
Available Mill Products Bar, Billet, Extrusions, Plate Sheet, Strip, Wire
Typical Application Will develop high fracture toughness by using special mill processing and heat treatment; surgical implants, salt water applications. For high pressure cryogenic vessels down to 0320°F
Industry Specifications ASTM
  • B265
  • F136

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