3.7174 / 3.7175 / Ti-6Al-6V-2Sn
Standards
Mat. No.
3.7164 / 3.7165
EU
-
AISI/ASTM
-
UNS
R56620
Other
Ti-6-6-2
Ti-6Al-6V-2Sn is a modified version of the Ti-6Al-4V system, which is a high-beta stabilized, alpha-beta dual-phase titanium alloy. Due to the addition of beta-stabilizing elements such as V, Fe, and Cu, this alloy has a higher strength potential compared to Ti6Al4V alloy. However, it may sacrifice some weldability and toughness. It is commonly used in annealed or solution-treated and aged conditions.
Chemical Composition & Mechanical and Physical Properties
C%
0.050 max
N%
0.040 max
Ti%
Rest
Fe%
0.35-1.00
O%
0.20 max
H %
0.015 max
AI%
5.00-6.00
V%
5.00-6.00
Sn%
1.50-2.50
Others (total)
0.30
Hardness HB 30
310 max
0.2 % Yield Strength Rp N/mm2
140 min
Tensile Strength Rm N/mm2
150 min
Elongation A5 %
8 min
Elastic Module x106 psi
114
Density g/cm3
4.58
Beta Transus Sıcaklığı °F
1735
Application areas
Airframe, jet engine parts, rocket engine.
Specifications
Extrusion AMS 4936, MIL-T-81556
Forgings AMS 4971/4978, MIL-F-83142A S 8, MIL-T-9046, MIL-T-9047
Round Bar/Wire AMS 4971, AMS 4978, AMS 4979, DMS 1887, MIL-T-9047
Sheet/Plate DMS1879/2237, MIL-T-9046, AMS 4918
AMS 6935 bars, forgings (solution treated & aged), AMS 6936 bars, forgings (annealed)