Titanium alloy 6Al-4V ELI UNS R56401
HY Titanium 6-4 ELI Material grades and equivalents
6-4 ELI Titanium, 6-4 ELI, UNS R56401
Introduction
Low interstitial version of HY Titanium 6-4 ELI, for maximum toughness. Preferred for marine and cryogenic applications. This grade is normally used in the annealed condition. HY Titanium 6-4 ELI 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 Composition
|
|
Al |
V |
Fe |
O |
C |
N |
H |
Y |
Others, |
Others, |
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 |
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 |
| Regular shape for all kinds of alloys | |||
| Form | Specification | Supply Form | Others |
| Sheet | Thickness：0.40-4.75mm，General Width：1000、1219、1500mm | Whole Coil or piece of it | Cold Annealed，Surface 2B、2E |
| Plate | Thickness：4.76-60mm，Width：1500、2000、2500mm，Length：3000、6000、8000、8500mm（Under 10mm plate can be coiled） | Whole Coil or piece of it | Single hot rolling，Solid solution annealed state，Surface 1D |
| Belt | Thickness：0.10-3.0mm，Width：50-500mm | Whole Coil or Specified size | Cold Annealed，Surface 2B、2E |
| Bar & Rod | Rolled barΦ5-45mm，Length≤1500mm | Polished Bar（circle、Square） | Solution annealing,descaling |
| Forged barΦ26-245mm，Length≤4000mm | |||
| Weld tube | Outer diameterΦ4.76-135mm，Wall Thickness0.25-4.00mm，Length：≤35000 mm | Base on your requirement | |
| Seamless Tube | Outer diameterΦ3-114mm，Wall Thickness0.2-4.5mm | Base on your requirement | |
| Wire | Outer diameterΦ0.1-13mm | Base on your requirement | Ni & Ni alloy, Ti & Ti alloy |
| Forged piece | discs,rings,squares,blocks,slabs | Base on your requirement | Steel, Alloy |
| Flangs | All kinds of Flangs | Base on your requirement | Steel, Alloy |
| Welding Material | Coil wire Φ0.025mm-1.6mm | Base on your requirement | Certificate of Origin：America, Sweden, Britain, Germany, Austria, Italy, France. |
| Straight WireΦ1.6mm-4.0mm | |||
| Welding rodΦ1.2mm-4.0mm | |||
| Tube | Elbow, three links, four links, different diameter size | Base on your requirement | Ni & Ni alloy, Ti & Ti alloy |
| Explosive bonded laminate | Raw Sheet Thickness≥2mm | Base on your requirement | Ni & Ni alloy, Ti & Ti alloy |