Location：
Basic characteristics:
In the early 1990s, China began domestic research and successful development of β 21s titanium alloy, with the corresponding domestic brand TB8. TB8 was used instead of 1Cr18Ni9Ti on the engine hood of a certain domestic aircraft model, reducing the weight of the aircraft by 14kg and improving the corrosion resistance and thermal stability of the parts. After using this alloy instead of 30CrMnSiA to manufacture a certain aircraft, the welded components of the fuselage load-bearing frame achieved a weight reduction of 15-20%, greatly improving the structural efficiency of the aircraft.
TB8 (GB/T 3620.1-2016) chemical composition:
chemical composition TB8 Fe C Si Mo N Nb - - 0.15 14 - 2.4 0.4 0.05 0.25 16 0.05 3.2 Al H O single others Ti 2.5 - - - - Remainder 3.5 0.015 0.17 0.1 0.4 The chemical composition includes chemical components with unspecified values in the table. Analysis should only be conducted if it is assumed to exist or in routine analysis, and there are indications that its composition will exceed the specified value.
Physical property :
Linear expansion coefficient temperature
θ/°C20~100 20~200 20~300 20~400 20~500 20~600 Linear expansion coefficient
α/10-6°C-18.1 8.8 9.1 9.4 9.5 9.9 Execution standards:
GB/T 3621-2007 Titanium and Titanium Alloy Sheet.
GB/T 3620.1-2016 Titanium and titanium alloy grades.
GB/T 42159-2022 Titanium and titanium alloy rods and wires for fasteners.
Application area:
TB8 titanium alloy is an alloy material with excellent properties, mainly composed of titanium element and other alloying elements. The advantages of its composition make it widely used in fields such as aerospace, automotive manufacturing, and ship engineering. By selecting and adjusting the composition of alloy elements reasonably, the performance of tb8 titanium alloy can be optimized to meet the needs of different fields.
