Ti 6Al-4V (Grade 5) Machining

Ti 6Al-4V (Grade 5)

Ti 6Al-4V, also known as Grade 5, is the most popular titanium alloy, ideal for parts that require high strength while remaining lightweight. It possesses high corrosion resistance and fair weldability and formability. Ti 6Al-4V is also heat treatable, unlike “pure” grades of titanium.

Ti 6Al-4V has a machining cost factor of 6.0 when compared to steel 12L14. It produces a fair weld and forges roughly. Ti 6Al-4V can also be annealed, heat treated, and aged.

Industries & Applications

  • Rings
  • Fasteners
  • Aircraft parts
  • Biomedical implants
  • Aerospace components

Ti 6Al-4V Characteristics

TEMPERYield Strength (ksi)Ultimate Tensile Strength (ksi)Modulus of Elasticity (ksi)Brinell Hardness (500km/10mm)

Annealed

130

150

17,000

Rock C - 33

Solution Treated and Aged

160

170

17,000

Rock C - 33

 

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, good bio-compatibility
Ti-6Al-4VEli
Medical implants
Ground & polished
+/-.002
30.2 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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