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Titanium Grade 7

Titanium Grade 7

Most corrosion-resistant titanium alloy offering outstanding resistance to general and localized crevice corrosion in a wide range of oxidizing and reducing acid environments including chlorides, with a good balance of moderate strength, reasonable ductility and excellent weldability. Physical and mechanical properties equivalent to Grade 2.

Physical Properties

Melting point, ± 15 °C …………1660 °C
Density …………………………4.51 g/cm3
Beta transus, ± 15 °C ……………915 °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 ……………20.8 W/mK
Thermal conductivity, 400 °C …………………….16 W/mK
Specific heat, room temperature ………………….0.52 J/gK
Specific heat, 400 °C ………………………..0.60 J/gK
Electrical resistivity, room temperature ……………..56 µW*cm

Chemical Composition
Designation & Standards

Sheet and plate : ASTM B265 Gr7

Bars and billets : ASTM B348 Gr7

Forging : ASTM B381 Gr7

Castings:  ASTM B367 Gr7

Tube:  ASTM B337 Gr7, ASTM B338 Gr7

Applications

Good corrosion resistance for chemical processing industry applications in which the liquid medium is mildly reducing or varies between oxidizing and reducing. Palladium improves resistance to crevice corrosion. Grade 7 has good formability