Brief introduction of titanium flange
What is titanium flange?
Table of Contents
Titanium flange is a kind of part made of non-ferrous metal titanium or titanium alloy to connect the pipe with the pipe, which is connected to the pipe end. There are holes on the titanium flange, and bolts make the two flanges tightly connected. The flange is sealed with gasket. Flange pipe fittings refer to the pipe fittings with flange (flange or adapter).
It can be formed by threaded connection or welding. The flange connection is composed of a pair of flanges, a gasket and several bolts and nuts. The gasket is placed between the two flange sealing surfaces. After the nut is tightened, the specific pressure on the gasket surface reaches a certain value, and the deformation occurs, and the uneven parts on the sealing surface are filled, so that the connection is tight.
According to the structure type, there are titanium lap Joint flange, titanium weld neck flange, titanium threaded flange and titanium blind flange, etc.
Product specifications of titanium flange
According to the flange standard production of various specifications, but also according to the drawings provided by customers to produce designated non-standard titanium flange.
Production methods of titanium flange
Free forging, die forging, precision forging.
Testing methods of titanium flange
According to customer needs to do radiographic testing, coloring, flaw detection, water pressure test and other testing.
Material of titanium flange
TA1 / GR1, TA2 / Gr2, TC4 / GR5, grade9, grade11, Grade12, titanium alloy flange.
Performance characteristics of titanium flange
Titanium is a new type of metal. Its properties are related to the content of impurities such as carbon, nitrogen, hydrogen and oxygen.
1. Titanium flange has high strength
The density of titanium alloy is about 4.51g/cm3, which is only 60% of that of steel. The density 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 alloy is much higher than that of other metal structural materials.
2. Titanium flange has high thermal strength
Titanium alloy can still maintain the required strength at medium temperature, and can work at 450 ~ 500 ℃ for a long time.
3. Titanium flange has good corrosion resistance
Titanium alloy works in humid atmosphere and seawater medium, its corrosion resistance is far better than stainless steel; it has strong resistance to pitting corrosion, acid corrosion and stress corrosion; it has excellent corrosion resistance to alkali, chloride, chlorine organic materials, nitric acid, sulfuric acid, etc.
4. Titanium flange has good low temperature performance
The mechanical properties of titanium alloy can be maintained at low and ultra-low temperature. Titanium alloys with good low temperature properties and very low interstitial elements, such as TA7, can maintain a certain plasticity at – 253 ℃. Therefore, titanium alloy is also an important low temperature structural material.
5. Titanium flange has high chemical activity
Titanium has great chemical activity and has strong chemical reaction with O, N, h, Co, CO2, water vapor and ammonia in the atmosphere. When the carbon content is more than 0.2%, the hard tic will be formed in the titanium alloy; when the temperature is higher, the hard tin surface will be formed; when the temperature is above 600 ℃, the titanium absorbs oxygen to form a hardened layer with high hardness; when the hydrogen content increases, the brittle layer will also be formed. The depth of hard and brittle surface layer can reach 0.1-0.15mm and the hardening degree is 20% – 30%. The chemical affinity of titanium is also high, and it is easy to adhere to the friction surface.
6. The thermal elasticity of titanium flange is small
The thermal conductivity of titanium is 15.24w / (m.k), which is about 1 / 4 of that of nickel, 1 / 5 of that of iron and 1 / 14 of that of aluminum. The elastic modulus of titanium alloy is about 1 / 2 of that of steel, so its rigidity is poor and it is easy to deform.
Source: Network Arrangement – China Titanium Flange Manufacurer: www.titaniuminfogroup.com