seamless titanium tube classification is relatively simple, as long as some people are clearly understand how classification is generally used by end-use classification, there is the press by mixing elements of classification, addition is classified according to the organization, we have to introduce the following these species classification.

By histological

(A titanium aluminum and tin added element .2 added titanium aluminum alloy elements such as chromium, molybdenum, vanadium and titanium .3 adding aluminum and vanadium and other elements.) Alloy with high strength and density and small, good mechanical properties, toughness and resistance another good corrosion performance: poor process performance titanium alloy, machining difficulties in thermal processing, and very easy to absorb carbon hydrogen nitrogen and other impurities as well as poor abrasion resistance, complicated production process...

By mixing elemental

Titanium-based alloy is added to other elements. Titanium industrial production was started in 1948. Require the development of the aviation industry, the titanium industry with an average annual growth rate of about 8% of the development. Currently the world's titanium alloy production reached 40,000 tons, nearly 30 kinds of titanium alloys. The most widely used titanium alloy is Ti-6Al-4V (TC4), Ti-5Al- 2.5Sn (TA7) and commercially pure titanium (TA1, TA2 and TA3).

By Use

welded titanium tube can be divided according to use heat-resistant alloys, high-strength alloys, corrosion resistant alloy (Ti - molybdenum, titanium - palladium alloys, etc.), low-temperature alloys and special features alloy (Ti - Fe hydrogen storage materials and titanium - nickel shape memory alloy), etc. . Table typical composition and performance of the alloy.