Titanium Seamless Tube
Seamless Titanium Tube
Grade ：Gr1 Gr2 Gr7 Gr9 Gr12
Standard ：ASTM B337 ，ASTM B338 ，ASTM B861
Section type: round, square, rectangle pipes
Product Introduction
As a supplier of titanium seamless tube, CHANGSHENG maintains a targeted inventory for both the commercial and military markets of the aerospace sector. Titanium tubes are the seventh most abundant metal and the ninth most abundant element in the earth's crust. The combination of the metal's low density-which is slightly more than half that of grade 5 titanium seamless tube-and its high strength is the reason why it is increasingly being used in commercial and military aircraft. Titanium tubing gains strength by being alloyed with elements like aluminum and vanadium, preserving its weight advantage over steel at the same time.
Grade：Gr1 Gr2 Gr7 Gr9 Gr12
Standard：ASTM B337, ASTM B338 , ASTM B861
Size: OD 4-114mm/ 1/5 inch ---4-1/2 inch wall thickness 0.4-8mm Length: less than 15m
Section type: round, square and rectangle tube
Testing Of Titanium Tubes: Chemical composition test/ Physical properties test/ Appearance defects inspection/ Flattening test/ Flaring test/ Hydrostatic test/ Air tightness test/ Ultrasonic flaw detection/ Eddy current testing
Production Processing
Pure titanium tube billets is rolled many times to the final size you required, then heat treatment, surface etched, flared, hydrostatic, ET and UT detection, dimensional and visual inspection, packaged then deliver.
Such as the general size of the tube blank is 88.9mm, and rolling to 25.4mm or 19.05mm is completed through four processes.
Chemical Composition(w%) max
ASTM B338 | N max | C max | H max | Fe max | O max | Al | V | Pd | Mo | Ni |
GR 1 | 0.03 | 0.08 | 0.015 | 0.2 | 0.18 | |||||
GR 2 | 0.03 | 0.08 | 0.015 | 0.3 | 0.25 | |||||
GR 5 | 0.05 | 0.08 | 0.015 | 0.4 | 0.2 | 5.5- 6.75 | 3.5-4.5 | |||
GR 7 | 0.03 | 0.08 | 0.015 | 0.3 | 0.25 | 0.12-0.25 | ||||
GR 9 | 0.03 | 0.08 | 0.015 | 0.25 | 0.15 | 2.5-3.5 | 2.0-3.0 | |||
GR 12 | 0.03 | 0.08 | 0.015 | 0.3 | 0.25 | 0.2-0.4 | 0.6-0.9 |
Mechanical properties
ASTM B338 | Tensile | Yield | Elongation | Reduction |
Mpa | Mpa | % | % | |
GR 1 | 240 | 138 | 24 | 30 |
GR 2 | 345 | 275 | 20 | 30 |
GR 5 | 895 | 828 | 10 | 10 |
GR 7 | 345 | 275 | 20 | 30 |
GR 9 | 860 | 750 | 10 | 10 |
GR 12 | 483 | 345 | 18 | 25 |
Performance
Excellent high and low-temperature performance.
At high temperatures, seamless titanium tubes can still maintain good mechanical properties. Their heat resistance is much higher than aluminum alloys, and their operating temperature range is wide. At present, the working temperature of new heat-resistant titanium alloys can reach 550-600 °C. At low temperature, the strength of titanium alloy is increased than that at normal temperature, and it has good toughness. Low temperature titanium alloy can still maintain good toughness at -253 ℃. Seamless titanium tube has strong corrosion resistance. In the air below 550 ℃, titanium will quickly form a thin and dense titanium oxide film. Therefore, its corrosion resistance is better than that of most stainless steels in oxidizing media such as air, sea water, nitric acid and sulfuric acid, and strong alkali.
Application of titanium tubes
1. In the military industry: nuclear-powered submarines, hydrofoil boats, mortar tubes, anti-tank missiles, missile launchers, tank protection plates, bullet-proof vests, etc.
2. In aerospace applications: Strategic rocket engines, spacecraft (such as Shenzhou 5 and Shenzhou 6) artificial satellite antennas, etc. also use seamless titanium tubes in large quantities
3. In marine industry: manufacturing deep submersibles, submarines, subsea laboratory equipment, seawater desalination treatment.
4. In Chemical industry: soda ash and caustic soda industry, water treatment industry.
5. In petroleum refining: Atmospheric and vacuum tower condensing equipment at low temperature.
6. In the automotive industry: exhaust systems
7. In Medicine: Human Implants, Pharmaceutical Devices, Medical Devices.
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