ASTM B682 - 19 Titanium and Titanium Alloy Welded Pipe
This specification covers the requirements for 33 grades of titanium and titanium alloy welded pipes for general corrosion resistance and high temperature applications.
ASTM B862 Scope: This specification covers the requirements for 33 grades of titanium and titanium alloy welded pipes for general corrosion resistance and high temperature applications. Welded pipes should be made from annealed flat-rolled products through a welding process. Welded pipe can be further thinned by cold working or hot working. Grades 1, 2, 2 H, 7, 7H, 11,13, 14, 16, 16H, 17, 26H, 33 and 37 shall be supplied in the welded or annealed condition. Grades 3, 12, 15 and 34 shall be supplied in the annealed condition. Grades 5, 23, 24, 25 and 35 shall be supplied in annealed or aged condition. Grades 9, 18 and 38 shall be supplied in the annealed condition. Grades 19, 20 and 21 shall be supplied in solution treated or solution treated and aged form. Materials should meet the requirements for chemical compositions such as nitrogen, carbon, hydrogen, iron, oxygen, aluminum, vanadium, tin, ruthenium, palladium, cobalt, molybdenum, chromium, nickel, niobium, zirconium, silicon, and titanium. They should also comply with the required mechanical properties such as tensile strength, yield strength and elongation.
application:
Titanium tubing is primarily used in aerospace applications because it does not have the strength of most hydraulic applications. It is also widely used in power generation, chemical processing and medical applications.
ASTM B862 grade2 Chemical composition
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Titanium (Ti)
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Ni
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C
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H
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Fe
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O
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Total
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Balance
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0.03 max
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0.08
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0.015
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0.30 max
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0.25
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0.0-0.10
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ASTM B862 grade2 Physical Properties
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Mechanical Property
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Value
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Yield strength
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275-450 MPa
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Tensile Strength
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345 Min MPa
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Elongation A50 mm
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20 Min %
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