1.1
本规范涵盖了用于一般耐腐蚀和高温环境的33个等级的钛和钛合金焊接管的要求,如下所示:
1.1.1
一年级--
UNS R50250。非合金钛,
1.1.2
二年级--
UNS R50400。非合金钛,
1.1.2.1
2H级--
UNS R50400。非合金钛(2级,最小UTS为58 ksi(400 MPa)),
1.1.3
三年级--
UNS R50550。非合金钛,
1.1.4
五年级--
UNS R56400。钛合金(6 %铝,4 %钒),
1.1.5
七年级--
UNS R52400。非合金钛加0.12 %至0.25 %钯,
1.1。
5.1
7H级--
UNS R52400。非合金钛加0.12 %至0.25 %钯(7级,最小UTS为58ksi(400MPa)),
1.1.6
9年级--
UNS R56320。钛合金(3 %铝,2.5 %钒),
1.1.7
11年级--
UNS R52250。非合金钛加0.12 %至0.25 %钯,
1.1.8
12年级--
UNS R53400。钛合金(0.3 %钼,0.8 %镍),
1.1.9
13级--
UNS R53413。钛合金(0.5 %镍,0.05 %钌),
1.1.10
14级--
UNS R53414。钛合金(0.5 %镍,0.05 %钌),
1.1.11
15级--
UNS R53415。钛合金(0.5 %镍,0.05 %钌),
1.1.12
16级--
UNS R52402。非合金钛+0.04 %至0.08 %钯,
1.1.12.1
16H级--
UNS R52402。非合金钛+0.04 %至0.08 %钯(16级,58千磅/平方英寸(400 MPa)最小UTS),
1.1.13
17级--
UNS R52252。非合金钛+0.04 %至0.08 %钯,
1.1.14
18级--
UNS R56322。钛合金(3 %铝,2.5 %钒加0.04 %至0.08 %钯),
1.1.15
19级--
UNS R58640。钛合金(3 %铝,8 %钒,6 %铬,4 %锆,4 %钼),
1.1.16
20级--
UNS R58645。钛合金(3 %铝,8 %钒,6 %铬,4 %锆,4 %钼)加0。
04 %至0.08 %钯,
1.1.17
21级--
UNS R58210。钛合金(15 %钼,3 %铝,2.7 %铌,0.25 %硅),
1.1.18
23级--
UNS R56407。钛合金(6 %铝,4 %钒,超低间隙,ELI),
1.1.19
24级--
UNS R56405。钛合金(6 %铝,4 %钒)加0.04 %至0.08 %钯,
1.1.20
25级--
UNS R56403。钛合金(6 %铝,4 %钒)加0.3 %至0.8 %镍和0.04 %至0.08 %钯,
1.1.21
26级--
UNS R52404。非合金钛加0.08 %至0.14 %钌,
1.1.21.1
26H级--
UNS R52404。
非合金钛加0.08 %至0.14 %钌(26级,58千磅/平方英寸(400 MPa)最小UTS),
1.1.22
27级--
UNS R52254。非合金钛加0.08 %至0.14 %钌,
1.1.23
28级--
UNS R56323。钛合金(3 %铝,2.5 %钒)加0.08 %至0.14 %钌,
1.1.24
29级--
UNS R56404。钛合金(6 %铝,4 %具有超低间隙元素(ELI)的钒)加0.08 %至0.14 %钌,
1.1.25
33级--
UNS R53442。钛合金(0.4 %镍,0.015 %钯,0.025 %钌,0.15 %铬),
1.1.26
34级--
UNS R53445。
钛合金(0.4 %镍,0.015 %钯,0.025 %钌,0.15 %铬),
1.1.27
35级--
UNS R56340。钛合金(4.5 %铝,2 %钼,1.6 %钒,0.5 %铁,0.3 %硅),
1.1.28
37级--
UNS R52815。钛合金(1.5 %铝),
1.1.29
38级--
UNS R54250。钛合金(4 %铝,2.5 %钒,1.5 %铁),以及
1.1.30
39级--
UNS R53390。钛合金(0.25%铁,0.4%硅)。
注1:
H级材料与相应的数字等级(即2H级=2级)相同,但保证的最低UTS较高除外,并且可以始终被证明满足其相应数字等级的要求。
2H、7H、16H和26H级主要用于压力容器。
1.2
8英寸NPS(公称管道尺寸)及以上的管道通常是为订单定制的。在这种情况下,买方应仔细考虑本规范的适用性。由于管道是定制的,买方可以选择不同于
表1
以满足特定的操作条件。买方也可以更好地指定本规范中满足操作条件所需的部分(例如,退火、平整试验、化学、性能等)。
)。
1.3
对于需要更大程度测试的管道,提供了可选的补充要求。买方可在需要时通过在订单中指定的方式援引这些补充要求。
1.4
以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换,仅供参考,不被视为标准。
1.5
本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。
1.1
This specification covers the requirements for 33 grades of titanium and titanium alloy welded pipe intended for general corrosion resisting and elevated temperature service as follows:
1.1.1
Grade 1—
UNS R50250. Unalloyed titanium,
1.1.2
Grade 2—
UNS R50400. Unalloyed titanium,
1.1.2.1
Grade 2H—
UNS R50400. Unalloyed titanium (Grade 2 with 58 ksi (400 MPa) minimum UTS),
1.1.3
Grade 3—
UNS R50550. Unalloyed titanium,
1.1.4
Grade 5—
UNS R56400. Titanium alloy (6 % aluminum, 4 % vanadium),
1.1.5
Grade 7—
UNS R52400. Unalloyed titanium plus 0.12 % to 0.25 % palladium,
1.1.5.1
Grade 7H—
UNS R52400. Unalloyed titanium plus 0.12 % to 0.25 % palladium (Grade 7 with 58 ksi (400 MPa) minimum UTS),
1.1.6
Grade 9—
UNS R56320. Titanium alloy (3 % aluminum, 2.5 % vanadium),
1.1.7
Grade 11—
UNS R52250. Unalloyed titanium plus 0.12 % to 0.25 % palladium,
1.1.8
Grade 12—
UNS R53400. Titanium alloy (0.3 % molybdenum, 0.8 % nickel),
1.1.9
Grade 13—
UNS R53413. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
1.1.10
Grade 14—
UNS R53414. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
1.1.11
Grade 15—
UNS R53415. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),
1.1.12
Grade 16—
UNS R52402. Unalloyed titanium plus 0.04 % to 0.08 % palladium,
1.1.12.1
Grade 16H—
UNS R52402. Unalloyed titanium plus 0.04 % to 0.08 % palladium (Grade 16 with 58 ksi (400 MPa) minimum UTS),
1.1.13
Grade 17—
UNS R52252. Unalloyed titanium plus 0.04 % to 0.08 % palladium,
1.1.14
Grade 18—
UNS R56322. Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.04 % to 0.08 % palladium),
1.1.15
Grade 19—
UNS R58640. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum),
1.1.16
Grade 20—
UNS R58645. Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum) plus 0.04 % to 0.08 % palladium,
1.1.17
Grade 21—
UNS R58210. Titanium alloy (15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon),
1.1.18
Grade 23—
UNS R56407. Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitial, ELI),
1.1.19
Grade 24—
UNS R56405. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.04 % to 0.08 % palladium,
1.1.20
Grade 25—
UNS R56403. Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.3 % to 0.8 % nickel and 0.04 % to 0.08 % palladium,
1.1.21
Grade 26—
UNS R52404. Unalloyed titanium plus 0.08 % to 0.14 % ruthenium,
1.1.21.1
Grade 26H—
UNS R52404. Unalloyed titanium plus 0.08 % to 0.14 % ruthenium (Grade 26 with 58 ksi (400 MPa) minimum UTS),
1.1.22
Grade 27—
UNS R52254. Unalloyed titanium plus 0.08 % to 0.14 % ruthenium,
1.1.23
Grade 28—
UNS R56323. Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.08 % to 0.14 % ruthenium,
1.1.24
Grade 29—
UNS R56404. Titanium alloy (6 % aluminum, 4 % vanadium with extra low interstitial elements (ELI)) plus 0.08 % to 0.14 % ruthenium,
1.1.25
Grade 33—
UNS R53442. Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),
1.1.26
Grade 34—
UNS R53445. Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),
1.1.27
Grade 35—
UNS R56340. Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon),
1.1.28
Grade 37—
UNS R52815. Titanium alloy (1.5 % aluminum),
1.1.29
Grade 38—
UNS R54250. Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron), and
1.1.30
Grade 39—
UNS R53390. Titanium alloy (0.25 % iron, 0.4 % silicon).
Note 1:
H grade material is identical to the corresponding numeric grade (that is, Grade 2H = Grade 2) except for the higher guaranteed minimum UTS, and may always be certified as meeting the requirements of its corresponding numeric grade. Grades 2H, 7H, 16H, and 26H are intended primarily for pressure vessel use.
1.2
Pipe 8 in. NPS (nominal pipe size) and larger is most frequently custom made for an order. In such cases, the purchaser carefully should consider the applicability of this specification. Since the pipe is custom made, the purchaser may choose a wall thickness other than those in
Table 1
to meet specific operating conditions. The purchaser may also be better served to specify only the portions of this specification that are required to meet the operating conditions (for example, annealing, flattening test, chemistry, properties, etc.).
1.3
Optional supplementary requirements are provided for pipe where a greater degree of testing is desired. These supplementary requirements may be invoked by the purchaser, when desired, by specifying in the order.
1.4
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.
1.5
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.