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ALPHA-BETA ALLOY

ALLOY GRADE 6AL-4V         6AL-4V ELI (Extra Low Interstitial)    
Chemical Composition (%)
(Max. values unless range is shown)		 0.08 C; 0.25 FE*, 0.05 N; 0.20 O;
5.50/6.75 AL; 3.5/4.5V 0.015 H (sheet);
0.0125H (bar); 0.0100 H (billet)
MILL ANNEALED
TENSILE PROPERTIES		 Guar. R.T. Min. Typical Elev. Temp. Prop.
600 F800 F1000 F
Ultimate Strength (psi) 130,000 100,000 90,000 70,000
Yield Strength (psi)0.2% offset 120,000 90,000 75,000 60,000
Elongation in 2" (%)
Sheet > 0.025 thick		 10 17 18 30
Reduction in Area (%) Bar 25 52 53 68
MECHANICAL PROPERTIES
Stress Rupture
in Time Shown		 Stress (psi) 98,00 75,000
Time (Hrs.) 1,000 1,000
Stress and Time
to Produce Elongation
Shown (Creep)		 Stress (psi) 70,000 32,000
Time (Hrs.) 1,000 1,000
Creep (%) 0.1 0.1
Charpy V-Notch Impact (ft.-lbs.) at Room Temperature 10 - 14
Bend Radius Under 0.070" thick 4.5 X Thickness
0.070" And Over 5.0 X Thickness
Welded Bend Radius 6.0 - 10.0 X Thickness
Hardness Rc36
ALLOY PHYSICAL PROPERTIES
Beta Transus (F ± 25) 1830
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.)		 3.9 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 -4 Hrs.; Air Cool
Forging* Temp. (F) Blocking 1750 - 1800°
Finishing 1650 - 1750°
Available Mill Products Bar, Billet, Extrusions, Plate Sheet, Strip, Wire
Typical Application Compressor blades, discs, rings for jet engines, aircraft components, pressure vessels, rocket engine cases; the most versatile titanium alloy.
Industry Specifications ASTM
  • B265 Grade 5
  • B348 Grade 5
  • F467 Grade 5
  • F468 Grade 5
ALLOY GRADE 6AL-4v     6AL-4V ELI (Extra Low Interstitial)     top        
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
6AL-4v     6AL-4V ELI     top        
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