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Characteristics of TA10 Titanium Alloy and Application Standards for Rod Wire Plate and Tube
1、 Introduction:
TA10 (Ti-0.3Mo-0.8Ni) titanium alloy is a corrosion-resistant titanium alloy developed to improve the crevice corrosion performance of pure titanium α Alloy, which contains 0.3% Mo and 0.8% Ni, not only strengthens the alloy, but also has good resistance to crack corrosion at high temperatures, low pH chlorides or weak reducing acids. Its corrosion resistance is significantly better than pure titanium and close to TA9 alloy. TA10 alloy also has good process plasticity and welding performance, and has been widely used in the chemical industry. This alloy can be used in an annealed state, and its main products include plates, bars, pipes, forgings, and wires. Similar foreign brands Gr.12 (in the United States).
2、 Chemical composition:
The chemical composition specified in GB/T 3620.1-2017 Titanium and Titanium Alloy Grades and Chemical Composition is shown in Table 1-1.
Table 7-3-6 Chemical composition mass fraction/% of TA10 titanium alloy
3、 Alloy properties:
Density 4.54g/m3, room temperature elastic modulus 103-107GPa, hardness HB180-215, phase transition point 890 ± 15 ℃.
Corrosion resistance: Nickel improves the crack corrosion resistance of titanium in hydrochloric acid solution, but in reducing acids, the corrosion resistance of Ti Ni alloy is actually lower than that of pure titanium. Adding molybdenum appropriately to Ti Ni alloy can improve its corrosion resistance in reducing media.
4、 Performance of TA10 titanium alloy specified in technical standards
Technical standard variety status specification mm Sampling direction Rm MpaRp0.2 MPaA% Z% a (°) not less than GB/T 3621-2007 Plate M0.8~10.0 LT485a 345b345a 275b18a 25b-105 GB/T 3622-1999 Strip and foil M0.3~<0.5 0.5 0.5~2.0 LT (L) 485-15c 18-90 GB/T 26723-2011 Strip M0.3~<4.75L, T48534518
105YS/T 658-2007 Strip M0.4-2.1
48330018a
105GB/T 3623-2007 Wire Material M0.1-0.7L Actual Measurement Actual Measurement GB/T 3624-2010 Pipe M Outer Diameter 3-110L46030018c-GB/T 3625-2007 Pipe M Outer Diameter ＞ 10-80L46030018c-GB/T 2965-2007 Bar M
The cross-sectional area shall not exceed 64.5cm2 and the cross-sectional thickness of the rectangular rod shall not exceed 76mm