Medical titanium material The manufacturer will show you the physical properties and anti-corrosion properties of titanium plates and rods:

Physical properties of titanium plate and titanium rod:

(1) When the temperature of industrial pure titanium exceeds 150-200 ℃, the mechanical strength decreases rapidly.

(2) The thermal expansion coefficient of titanium is 75% of that of carbon steel. In the design and manufacture of equipment, special attention should be paid to the combination of these two materials.

(3) In shaping and roller operation, the elastic modulus of titanium is low relative to its tensile property. Therefore, compared with other materials, it is necessary to consider the large rebound margin because of the low elastic die. In order to achieve the same stability, the cross section of titanium parts is slightly larger than that of steel parts.

Corrosion resistance of titanium plate and titanium rod:

(1) The corrosion resistance of titanium is affected by the surface oxide film, so this material is more suitable for use in oxidizing environments, or where oxygen is easily available. In reducing solutions, titanium will react with the solution to generate hydrogen.

(2) Like all metals, when titanium is in direct contact with different metals in the electrolyte, it will form a couple. After the formation of the galvanic couple, the corrosion rate of one or two metals is much faster than that before the formation of the galvanic couple. In almost all cases, titanium is the electrode with greater inertia of the galvanic couple, which causes the increase of corrosion of the other metal. The extent of its corrosion k depends on the relative area ratio and the actual electrolyte used, so the formation of the galvanic couple should be avoided in the design of equipment.

(3) Some titanium alloys with good high temperature strength have come out, but compared with pure titanium, these alloys have poor corrosion resistance. Titanium alloys with good corrosion resistance include titanium palladium and titanium nickel molybdenum alloys.

(4) Generally, titanium is only used for some occasions with slow corrosion rate, so it is unnecessary to provide corrosion tolerance allowance when designing equipment. In this way, it is possible to use thin titanium plates as liners for carbon steel vessels, heat exchanger tailboxes, tube plates, pumps, valves, etc. - thin titanium tubes as tubular heat exchangers and thin titanium plates as plate heat exchangers to reduce equipment costs and improve heat exchange performance.

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