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Wholesale imported TC13 titanium alloy plate TC13 high hardness corrosion-resistant titanium plate thickness 0.3-100mm

     Titanium is a new metal. The performance of titanium is related to the impurities such as carbon, nitrogen, hydrogen, oxygen, etc. The purest titanium iodide impurities do not exceed 0.1 %, but their strength and high plasticity.99.5 % of industrial pure titanium performance is: densityρ= 4.5g/cm3, the melting point is 1800 ° C, the heating coefficientλ= 15.24W/(m.k), tensile strengthσB = 539MPa, elongationδ= 25 %, section contraction rateψ= 25 %, elastic modulus E = 1.078×105MPa, hardness HB195.

(1) The density of high -intensity titanium alloy is generally about 4.5g/cm3, only 60 % of steel. The strength of pure titanium is close to the strength of ordinary steel. Some high -strength titanium alloy exceeds the strength of many alloy structure steel.Therefore, the intensity (strength/density) of the titanium alloy is much larger than that of other metal structure materials. See Table 7-1, which can produce high, rigidity, light and light, and light components.At present, the aircraft's mobilization mechanism, skeleton, skin, fastener, and landing gear all use titanium alloys.

(2) High heat intensity is hundreds of dollars higher than aluminum alloy, and the required strength can still be maintained at medium temperature. The two types of titanium alloy can be worked for a long time at 450-500 ° C.There is still a high ratio of intensity, while the intensity of aluminum alloy decreases significantly at 150 ° C.The operating temperature of titanium alloys can reach 500 ° C, and aluminum alloy is below 200 ° C.

(3) Good titanium alloy works in humid atmosphere and seawater medium, and its corrosion resistance is far better than stainless steel; the resistance of point erosion, acid erosion, and stress corrosion is particularly strong;Organic items, nitric acid, sulfuric acid, etc. have excellent corrosion resistance.However, titanium has poor corrosion resistance to restore oxygen and chromium salt medium.

(4) Good titanium alloy can still maintain its mechanical performance under low temperature and low temperature.Titanium alloy with good low temperature performance and extremely low gap elements, such as TA7, can also maintain a certain plasticity at -253 ° C.Therefore, titanium alloy is also an important low -temperature structural material.

(5) Chemical activity of chemical activity is large, and a strong chemical reaction is generated with O, N, H, CO, CO2, water vapor, ammonia, etc. in the atmosphere.When the carbon content is greater than 0.2 %, a hard TIC will be formed in the titanium alloy; when the temperature is high, the effect with N will also form Tin hard surface layer; when at 600 ° C, titanium absorption oxygen forms a hardened layer with high hardness of hardness.; Rising hydrogen content will also form a crispy layer.The depth of the hard and crispy surface produced by absorbing gas can reach 0.1 to 0.15 mm, and the degree of hardening is 20 % to 30 %.The chemical affinity of titanium is also large, and it is easy to produce adhesion with the surface of friction.

(6) The heat conduction coefficient of small thermal conductivity and small titanium titaniumλ= 15.24W/(m.k) is about 1/4 of nickel, 1/5 of the iron, 1/14 of aluminum, and the heating coefficient of various titanium alloy is reduced by 50 % compared to the thermal conductivity of titanium.The elastic modulus of titanium alloy is about 1/2 of the steel. Therefore, its rigidity is poor and easy to deform. It is not advisable to make slender rods and thin wall parts.Double, resulting in severe friction, adhesion, and adhesion of the knife's rear knife surface.

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