ASTM B338 Standard Titanium Welded Tube For Heat Exchanger

ASTM B338 Standard Titanium Welded Tube Titanium Tube for Heat Exchanger

Heat Treatment

High chemical activity
The chemical activity of titanium is large, and it is compatible with O, N, H in the atmosphere
, CO, CO2, water vapor, ammonia, etc. produce strong chemical reactions. When the carbon content is greater than 0.2%, hard TiC will be formed in the titanium alloy; when the temperature is high, the TiN hard surface layer will be formed when it interacts with N; when the temperature is above 600 ° C, titanium absorbs oxygen to form a hardened layer with high hardness ; When the hydrogen content rises, an embrittlement layer will also be formed. The depth of the hard and brittle surface layer produced by absorbing gas can reach 0.1-0.15 mm, and the degree of hardening is 20%-30%. The chemical affinity of titanium is also large, and it is easy to cause adhesion with the friction surface.
thermal conductivity is small
The thermal conductivity of titanium λ=15.24W/(m.K) is about 1/4 of nickel, 1/5 of iron, and 1/14 of aluminum, while the thermal conductivity of various titanium alloys is about 50% lower than that of titanium. The modulus of elasticity of titanium alloy is about 1/2 of that of steel, so it has poor rigidity and is easy to deform. It is not suitable for making slender rods and thin-walled parts. times, resulting in severe friction, adhesion, and bond wear on the flank of the tool.

Description:

Competitive Advantage:

Baoji New Future Titanium Industry Co., Ltd. is a member enterprise of Titanium Industry Branch of China Nonferrous Metals Association and a director unit of Baoji Titanium Industry Association. The main products are high-purity sponge titanium powder, metal titanium powder, titanium alloy powder and titanium wire, and various titanium materials A professional production and processing high-tech enterprise.

Since its establishment, the company has adopted the international advanced hydrogenation dehydrogenation process, developed and perfected a set of modern production lines, and produced domestic high-purity ultra-fine titanium metal powder. During this period, in 2001, the fist product of high-grade low-oxygen titanium sponge powder was developed and produced, which has been well received by customers at home and abroad.

Application:

Widely used in heat exchange equipment, such as shell and tube heat exchangers, coil heat exchangers, serpentine tube heat exchangers, condensers, evaporators and pipelines, etc.