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Normas ASTM – AENOR
ASTM B338-05b

ASTM B338-05b

Standard Specification for Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers and Heat Exchangers

Fecha:
2017-08-16 /Historical
Scope:

1.1 This specification covers the requirements for 23 grades of titanium and titanium alloy tubing intended for surface condensers, evaporators, and heat exchangers, as follows:

1.1.1 Grade 1—Unalloyed titanium,

1.1.2 Grade 2—Unalloyed titanium,

1.1.3 Grade 3—Unalloyed titanium,

1.1.4 Grade 7—Unalloyed titanium plus 0.12 to 0.25 % palladium,

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

1.1.6 Grade 11—Unalloyed titanium plus 0.12 to 0.25 % palladium,

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

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

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

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

1.1.11 Grade 16—Unalloyed titanium plus 0.04 to 0.08 % palladium,

1.1.12 Grade 17—Unalloyed titanium plus 0.04 to 0.08 % palladium,

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

1.1.14 Grade 26—Unalloyed titanium plus 0.08 to 0.14 % ruthenium,

1.1.15 Grade 27—Unalloyed titanium plus 0.08 to 0.14 % ruthenium,

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

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

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

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

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

1.1.21 Grade 35—Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon),

1.1.22 Grade 36—Titanium alloy (45 % niobium), and

1.1.23 Grade 37—Titanium alloy (1.5 % aluminum).

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

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Keywords:
seamless tubing; titanium; titanium alloy; tubing; welded/cold worked tubing; welded tubing
49,38
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