M5 X 20mm T25 Torx Cylindrical Head Screws Titanium Alloy

Product Description

M5 x 20mm T25 Torx Cylindrical head Screws

Heat Treatment

Titanium alloy is an alloy composed of titanium and other elements. Titanium has two kinds of isomorphs; titanium is an isomer with a melting point of 1720°C and a close-packed hexagonal crystal structure when it is lower than 882°C , called a titanium; above 882°C, it has a body-centered cubic grid structure, called B titanium, using the different characteristics of the above two structures of titanium, adding appropriate alloying elements to make its phase transition temperature and phase content gradually Titanium alloys (itanium alloys) obtained by changing different organizations.

Titanium Alloys - Alloying Elements

Titanium alloy elements can be divided into three categories according to their influence on the phase transition temperature: ① The elements that stabilize the a phase and increase the phase transition temperature are a stable elements, including aluminum, magnesium, oxygen and nitrogen. Among them, aluminum is the main alloying element of titanium alloy, which has obvious effects on improving the strength of the alloy at room temperature and high temperature, reducing the specific gravity and increasing the elastic modulus. ② The elements that stabilize the B phase and lower the phase transition temperature are B stable elements. It can also be divided into isocrystal and eutectoid. The former includes molybdenum, niobium, vanadium, etc.; the latter includes chromium, manganese, copper, silicon, etc. ③ The elements that have little effect on the phase transition temperature are neutral elements, such as zirconium and tin.

Titanium Alloys - Classification

a titanium alloy

It is a single-phase alloy composed of a-phase solid solution. Whether it is at normal temperature or at a higher practical application temperature, it is a-phase, with stable structure, higher wear resistance than pure titanium, and strong oxidation resistance. At a temperature of 500°C~600°C, it still maintains its strength and creep resistance, but it cannot be strengthened by heat treatment, and its strength at room temperature is not high.

B titanium alloy

It is a single-phase alloy composed of B-phase solid solution. It has high strength without heat treatment. After quenching and aging, the alloy is further strengthened, and the room temperature strength can reach 1372~1666MPa; but the thermal stability is poor, and it is not suitable for high temperature. use.

a+B titanium alloy

It is a dual-phase alloy with good comprehensive performance, good structural stability, good toughness, plasticity and high-temperature deformation performance. It can be processed by hot pressure, and can be quenched and aged to strengthen the alloy. The strength after heat treatment is about 50%~100% higher than that of the annealed state; the high temperature strength is high, and it can work at a temperature of 400°C~500°C for a long time. Its thermal stability is inferior to a titanium alloy.

Description

Competitive Advantages

We have more than ten years of experience in building titanium’s factory,which includes almost one thousand employees.our factory located in baoji,titanium valley.we strictly control every process of production and strive to provide customers with high quality products,And our products sale to all over the world.