3.7065 / Ti Grade 4 / Ti 4
Standards
Mat. No.
3.7065
EU
Grade 4
AISI/ASTM
Ti-Grade 4
UNS
R50700
Other
Titanium CP
Grade 4
Ti-Grade 4; It is unalloyed moderately oxygenated titanium.
Commercially pure titanium grades exhibit an excellent strength-to-density ratio and good corrosion resistance. They have become the most suitable class for structural applications where weight reduction is necessary and corrosion resistance is important. Additionally, titanium has low thermal stresses due to its low coefficient of thermal expansion compared to metallic materials. It is commonly used in the medical sector due to its biocompatibility.
Chemical Composition & Mechanical and Physical Properties
C%
0.080 max
N%
0.050 max
Ti%
Rest
Fe%
0.50 max
O%
0.40 max
H %
0.015 max
Hardness HB 30
200 max
0.2 % Yield Strength N/mm2
485 min
Tensile Strength Rm N/mm2
550 min
Elongation A5 %
15 min
Elastic Modulus kN/mm2
106
Density g/cm3
4.51
Specific Heat Capacity J/kg K
540
Thermal Conductivity W/mK
18
Electrical Insulation Ω mm2/m
0.55
Application areas
In Medical Applications, defense and aerospace, shipbuilding, chemical industry.
Specifications
BS 3TA6 – Sheet, strip, BS 3TA7 – Bar, BS 2TA8 – Forging stock
AMS 4901 – Sheet, strip, plate, AMS 4921 – Bar, AMS-T-9046B – Sheet, strip, plate, AMS-T-9047A CP70 – Bar, MIL-T-9046H Type 1 Comp B – Sheet, strip, plate, MIL-T-9046J CP1 – Sheet, strip, plate, MIL-T-9074G CP70 – Bar
ASTM B265 – Gr4 Sheet, plate, ASTM B337 – Gr4 Pipe (withdrawn), ASTM B338 – Gr4 heat exchanger tube, ASTM B348 – Gr4 bar, ASTM B367 – Gr4 castings, ASTM B381 – Gr4 forgings, ASTM F67 – Gr4 Surgical Implant, ASTM F467 – Gr4 nuts, ASTM F468 – Gr4 bolts
T-60, Werkstoff WS3.7064 (aerospace),
Werkstoff WS3.7065,
LN 9297