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Detailed Introduction of TC4 Medical Titanium Bar Production Standards and Requirements
Mar 04, 2019

 

1. The production standard of TC4 medical titanium bar and the requirement of high titanium alloy strength are generally about 4.51g/cubic centimeter in density, which is only 60% of steel. The strength of pure titanium is close to that of ordinary steel. Some high strength titanium alloys exceed the strength of many alloy structural steels. Therefore, the specific strength (strength/density) of titanium alloys is much greater than that of other metal structural materials, and parts with high strength, good rigidity and light weight can be manufactured. Titanium alloys are currently used in aircraft engine components, skeletons, skins, fasteners and landing gears.




Titanium alloy has high thermal strength




2. TC4 medical titanium bar production standard and the required temperature are several Baidu higher than that of aluminium alloy, and the required strength can still be maintained at medium temperature. The two kinds of titanium alloys can work at 450-500 C for a long time and still have high specific strength in the range of 150-500 C, while the specific strength of aluminium alloy decreases significantly at 150 C. The working temperature of titanium alloy can reach 500 C, while that of aluminium alloy can be below 200 C.




Titanium alloy has good corrosion resistance




3. TC4 medical titanium bar production standard and requirement that titanium alloy work in humid atmosphere and sea water medium, its corrosion resistance is far superior to stainless steel; resistance to pitting corrosion, acid corrosion and stress corrosion is particularly strong; excellent corrosion resistance to alkali, chloride, chlorine organic substances, nitric acid, sulfuric acid and so on. However, the corrosion resistance of titanium to reductive oxygen and chromium salts is poor.




Titanium alloys have good Cryogenic Properties




Fourth, TC4 medical titanium bar production standards and requirements of titanium alloy at low and ultra-low temperatures, but still can maintain its mechanical properties. Titanium alloys with good Cryogenic Properties and very low interstitial elements, such as TA7, can also maintain a certain degree of plasticity at - 253 C. Therefore, titanium alloy is also an important low temperature structural material.




TC4 thermal expansion coefficient: TC4 titanium alloy has a series of advantages, such as excellent corrosion resistance, small density, high specific strength, good toughness and weldability. It has been successfully applied in aerospace, petrochemical, shipbuilding, automobile, medicine and other departments.




Mechanical properties of TC4 titanium alloy: tensile strength_b/MPa (> 895), residual elongation stress_r0.2/MPa (> 825), elongation_5 (%) (%) (%) (%) (%) (%) (%) and section shrinkage(%) (%) (%) (%) (%) (%) (%) (%) (%)




Density of TC4 Titanium Alloy: 4.5 (g/cm3) Working Temperature - 100-550 (?)




Chemical compositions of TC4 titanium alloy: titanium (Ti) residue in TC4, iron (Fe) = 0.30, carbon (C) = 0.10, nitrogen (N) = 0.05, hydrogen (H) = 0.015, oxygen (O) = 0.20, aluminium (Al) 5.5-6.8, vanadium (V) 3.5-4.5.


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