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6Al-4V ELIDownload

 Low interstitial version of Ti-6Al-4V, for maximum toughness. Preferred for marine and cryogenic applications. This grade is normally used in the annealed condition. Ti-6Al-4V is the preferred choice for the medical implant field.
Stress relief 900-1200°F 1 to 4 hours, air cool. Duplex anneal, bar and forgings: Solution anneal 50-100°F below the beta transus, hold 1 hour minimum, air cool. Then reheat within the range 1300-1400°F, hold 1 hour minimum, air cool. Stress - relief annealing is performed after welding.
Chemistry

 

Al

V

Fe

O

C

N

H

Y

Others,
Each

Others,
Total

Ti

MIN

5.5

3.5

--

--

--

--

--

--

--

--

--

MAX

6.5

4.5

0.25

0.13

0.08

0.03

0.0125

0.005

0.1

0.4

Balance

Specifications
AMS 4907, AMS 4930, AMS 4931, AMS 4956, AMS 6932
ASME SB 348
ASTM B 348, ASTM F 136
EN 3.7164
ISO 5832-3
MIL-T-9047
UNS R56401
Werkstoff 3.7164
Inventory
6Al-4V ELI Round Bar, 6Al-4V ELI Weld Wire
Common Trade Names
6-4 ELI Titanium, 6-4 ELI
Features
• Resistant to bodily fluids
• Resistant to a variety of corrosive environments
• Freedom from chloride stress corrosion cracking
• Good strength and toughness over a wide temperature range
• High resistance to erosion corrosion and corrosion fatigue
• Useful resistance to dry chlorine, fluorine, hydrogen chloride and hydrogen fluoride gases
Applications
• Medical and dental implants
• Cryogenics
• Aerospace
• Chemical processing
Physical Properties
Density: 0.160 lb/in3
Melting Range: 2370 - 2460°F
Beta Transus: 91790+25°F
Minimum Tensile Properties, AMS 4919, Duplex Annealed

Temperature, °F

68-212

68-600

68-1000

68-1200

68-1500

Coefficient* of Thermal Expansion, in/in°F x 10-6

9.18

9.54

10.08

10.44

10.8

Mechanical Properties
Typical hardness Rockwell: C 30-34 Specific minimums, AMS 4931, bar and forging
Representative Tensile Properties, Sheet

Diameter, in

< 3.0

< 3.0 < 4.0

< 4.0) < 6.0

Tensile Strength, ksi

125

123

120

0.2 % Yield Strength, ksi

115

110

110

Elongation, % *L (**ST)

10 (8)

10 (8)

8 (8)

Reduction of Area, % *L (**ST)

25 (–)

20 (15)

15 (15)

* Longitudinal ** Short Transverse
Typical Elevated temperature Properties

Temperature, °F

93 (200)

149 (300)

204 (400)

260 (500)

Ultimate Tensile Strength, ksi

843.3 (121)

772.2 (112)

723.9 (105)

657.7 (98)

0.2 % Yield Strength, ksi

710.2 (103)

641.2 (93)

586.1 (85)

531.0 (77)

Elongation, %

13

15

16

16