Pageloader

Titanium Grade 4

Titanium Grade 4

Unalloyed titanium offering reasonable high strength with good weldability. Good corrosion resistance in neutral to oxidizing environments, including chlorides

Physical Properties

Melting point, ± 15 °C ………….1660 °C
Density ………………………….4.54 g/cm3
Beta transus, ± 15 °C …………….950 °C
Thermal expansion, 20 – 100 °C………………. 8.6 *10-6 K-1
Thermal expansion, 0 – 300 °C ………………9.2 *10-6 K-1
Thermal conductivity, room temperature…………. 17.3 W/mK
Thermal conductivity, 400 °C ……………..W/mK
Specific heat, room temperature ………..0.54 J/gK
Specific heat, 400 °C ……………0.40 J/gK
Electrical resistivity, room temperature ………..60 µW*cm
Poisson’s ratio ……………….0.34-0.40

Chemical Composition
Designation & Standards

Sheet and plate : AMS 4901, MIL-T-9046 CP-1

Bars and billets : ASTM B348 Gr4

Tube: ASTM B337 Gr3, ASTM B338 Gr2

Forging : ASTM B381 Gr4

Bar, forging and circular forging :  AMS 4921

Bar, billet and forging blank : ASTM F467 Gr4, ASTM F468 Gr4
DIN 3.7065
BSTA 6,7,8,9

Applications

Though it is normally used in the following industrial applications, Grade 4 has recently found a niche as a medical grade titanium. It is needed in applications in which high strength is required:

  • Airframe components
  • Cryogenic vessels
  • Heat exchangers
  • CPI equipment
  • Condensor tubing
  • Surgical hardware
  • Pickling baskets