Ti-3Al-2.5V (Gr9)
This alloy is sometimes referred to as "half 6-4". It offers 20-50% higher strength than CP grades, but is more formable and weldable than Ti-6AI-4V. Grade 9 combines strength, weldability and formability. The alloy has excellent formability plus higher tensile strength than the strongest unalloyed grade.
Chemical composition of Titanium Grade 9 (%, max.)
Grade |
UNS |
DIN |
O |
N |
C |
H |
Fe |
Al |
V |
Gr9 |
R56320 |
3.7195 |
0.15 |
0.05 |
0.08 |
0.015 |
0.25 |
2.50-3.50 |
2.00-3.00 |
* According to ASTM B265, 348, 338, 861, 862, 863
Classification |
UNS |
O |
N |
C |
H |
Fe |
Al |
V |
ERTi-9 |
R56321 |
0.06-0.12 |
0.012 |
0.03 |
0.005 |
0.20 |
2.50-3.50 |
2.00-3.00 |
* Residual elements total < 0.20%, with single < 0.05%, except for yttrium < 0.005%
Mechanical properties of Titanium Grade 9
Grade |
Tensile strength |
Yield strength |
Elongation in 4D |
Reduction of area |
Hardness |
|
Gr9 |
620 |
483 |
15 |
25 |
260-320 |
Available forms
● Ingot
● Forging
● Tube and pipe
● Rod and bar
● Plate and sheet
● Wire
● Fastener
● Bicycle frame and parts
● Custom-made
Specification
ASTM F 2146
AWS A5.16
Typical application
▲ Aerospace & Defense
▲ Chemical Processing
▲ Oil & Gas
▲ Automotive
▲ Medical
▲ Honeycombs
▲ Automotive Exhausts
▲ Recreational Equipment
▲ Tubing for hydraulic systems
▲ Golf club shafts
▲ Tennis racquets and bicycle frames