scope:

Scope

This specification covers the requirements for 20 grades of titanium and titanium alloy tubing intended for surface condensers, evaporators, and heat exchangers, as follows:

Grade 1 - Unalloyed titanium,

Grade 2 - Unalloyed titanium,

Grade 3 - Unalloyed titanium,

Grade 7 - Unalloyed titanium plus 0.12 to 0.25% palladium,

Grade 9 - Titanium alloy (3% aluminum, 2.5% vanadium),

Grade 11 - Unalloyed titanium plus 0.12 to 0.25% palladium,

Grade 12 - Titanium alloy (0.3% molybdenum, 0.8% nickel),

Grade 13 - Titanium alloy (0.5% nickel, 0.05% ruthenium),

Grade 14 - Titanium alloy (0.5% nickel, 0.05% ruthenium),

Grade 15 - Titanium alloy (0.5% nickel, 0.05% ruthenium),

Grade 16 - Unalloyed titanium plus 0.04 to 0.08% palladium,

Grade 17 - Unalloyed titanium plus 0.04 to 0.08% palladium,

Grade 18 - Titanium alloy (3% aluminum, 2.5% vanadium) plus 0.04 to 0.08 % palladium,

Grade 26 - Unalloyed titanium plus 0.08 to 0.14% ruthenium,

Grade 27 - Unalloyed titanium plus 0.08 to 0.14% ruthenium,

Grade 28 - Titanium alloy (3% aluminum, 2.5% vanadium) plus 0.08 to 0.14% ruthenium,

Grade 30 - Titanium alloy (0.3% cobalt, 0.05% palladium),

Grade 31 - Titanium alloy (0.3% cobalt, 0.05% palladium),

Grade 33 - Titanium alloy (0.4% nickel, 0.015% palladium, 0.025% ruthenium, 0.15% chromium), and

Grade 34 - Titanium alloy (0.4% nickel, 0.015% palladium, 0.025% ruthenium, 0.15% chromium).

Tubing covered by this specification shall be heat treated by at least a stress relief as defined in 5.3.

The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.