Ti 6Al-4V Eli (Grade 23)
Ti 6Al-4V Eli, also known as Grade 23, is a popular titanium alloy, ideal for parts that require strength and toughness while remaining lightweight. It is extremely biocompatible, making it the material of choice when fatigue and corrosion resistances are necessary. Ti 6Al-4V Eli’s higher oxygen content results in more ductility and fracture resistance than Ti 6Al-4V, but is slightly less strong.
Ti 6Al-4V Eli has a machining cost factor of 6.0 when compared to steel 12L14. It can be hot and cold formed, heat treated, annealed, forged, and aged. Ti 6Al-4V Eli is considered fairly weldable.
Industries & Applications
- Springs
- Dental equipment
- Bone fixation devices
- Biomedical implants
- Surgical equipment
Ti 6Al-4V Eli Characteristics
| TEMPER | Yield Strength (ksi) | Ultimate Tensile Strength (ksi) | Modulus of Elasticity (ksi) | Brinell Hardness (500km/10mm) |
|
N/A |
130 |
140 |
16,000 |
Rock C - 32 |
Titanium Cost Comparison
| Type | General Characteristics | Alloy | Common Applications | Tolerances for a 1/2" Dia. Bar | Material Cost Factor | Machining Cost Factor |
|---|---|---|---|---|---|---|
| Titanium |
High strength, light weight
|
Ti-6Al-4V |
Aircraft and aerospace parts
|
Ground & polished +/-.002 |
21.3 | 6 |
Common Material Cost Comparison
| Type | General Characteristics | Alloy | Common Applications | Tolerances for a 1/2" Dia. Bar | Material Cost Factor | Machining Cost Factor |
|---|---|---|---|---|---|---|
| Steel |
Designed for excellent machinability. Case hard only
|
12L14 |
Endless commercial products; probably more pounds used in turned products than any other bar stock
|
Cold drawn 0 |
1 | 1 |
| Stainless Steel |
Designed for machining, non-magnetic
|
303 |
Electronic hardware, automotive, aerospace, medical instruments, and many applications requiring corrosion resistance
|
Cold finished +/- .002 |
1.9 | 2.7 |
| Brass |
Strength, corrosion and wear resistance, and excellent machinability
|
C35300 |
Well suited for parts with knurling or threading
|
+0015 | 3.5 | .07 |
| Aluminum |
Designed for machining
|
2011 |
Electronic hardware, endless commercial products
|
Cold finish +/-.0015 |
3.8 | .6 |
| Titanium |
High strength, light weight, good bio-compatibility
|
Ti-6Al-4VEli |
Medical implants
|
Ground & polished +/-.002 |
30.2 | 6 |
To review our Machining Materials Guide, please click here.
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