Standard Specification for Titanium and Titanium Alloy Welded Pipe
Abstract
This specification covers the requirements for 33 grades of titanium and titanium alloy welded pipe intended for general corrosion resisting and elevated temperature service. Welded pipe shall be made from annealed flat-rolled products by a welding process. Welded pipe may be further reduced 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 furnished as welded or annealed. Grades 3, 12, 15, and 34 shall be furnished as annealed. Grade 5, 23, 24, 25, 35 shall be furnished as annealed, or aged. Grade 9, 18, 38 shall be furnished as annealed. Grade 19, 20, 21 shall be furnished as solution treated, or solution treated and aged. The materials shall conform to the required chemical composition for nitrogen, carbon, hydrogen, iron, oxygen, aluminum, vanadium, tin, ruthenium, palladium, cobalt, molybdenum, chromium, nickel, niobium, zirconium, silicon, and titanium. They shall also conform to the required mechanical propetries such as tensile strength, yield strength, and elongation.
Scope
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:
1.1.14 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,
1.1.23 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),
1.2 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.).
NPS Desig. | Outside Dia. | Nominal Wall Thickness | ||||||||||||||||
| Schedule 5SA | Schedule 5A | Schedule 10SA | Schedule 10A | Schedule 40S | Schedule 40 | Schedule 80S | Schedule 80 | ||||||||||
in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
1/8 | 0.405 | 10.29 | x | x | x | x | 0.049 | 1.24 | 0.049 | 1.24 | 0.068 | 1.73 | 0.068 | 1.73 | 0.095 | 2.41 | 0.095 | 2.41 |
1/4 | 0.540 | 13.72 | x | x | x | x | 0.065 | 1.65 | 0.065 | 1.65 | 0.088 | 2.24 | 0.088 | 2.24 | 0.119 | 3.02 | 0.119 | 3.02 |
3/8 | 0.675 | 17.15 | x | x | x | x | 0.065 | 1.65 | 0.065 | 1.65 | 0.091 | 2.31 | 0.091 | 2.31 | 0.126 | 3.20 | 0.126 | 3.20 |
1/2 | 0.840 | 21.34 | 0.065 | 1.65 | 0.065 | 1.65 | 0.083 | 2.11 | 0.083 | 2.11 | 0.109 | 2.77 | 0.109 | 2.77 | 0.147 | 3.73 | 0.147 | 3.73 |
3/4 | 1.050 | 26.67 | 0.065 | 1.65 | 0.065 | 1.65 | 0.083 | 2.11 | 0.083 | 2.11 | 0.113 | 2.87 | 0.113 | 2.87 | 0.154 | 3.91 | 0.154 | 3.91 |
1 | 1.315 | 33.40 | 0.065 | 1.65 | 0.065 | 1.65 | 0.109 | 2.77 | 0.109 | 2.77 | 0.133 | 3.38 | 0.133 | 3.38 | 0.179 | 4.55 | 0.179 | 4.55 |
1-1/4 | 1.660 | 42.16 | 0.065 | 1.65 | 0.065 | 1.65 | 0.109 | 2.77 | 0.109 | 2.77 | 0.140 | 3.56 | 0.140 | 3.56 | 0.191 | 4.85 | 0.191 | 4.85 |
1-1/2 | 1.900 | 48.26 | 0.065 | 1.65 | 0.065 | 1.65 | 0.109 | 2.77 | 0.109 | 2.77 | 0.145 | 3.68 | 0.145 | 3.68 | 0.200 | 5.08 | 0.200 | 5.08 |
2 | 2.375 | 60.32 | 0.065 | 1.65 | 0.065 | 1.65 | 0.109 | 2.77 | 0.109 | 2.77 | 0.154 | 3.91 | 0.154 | 3.91 | 0.218 | 5.54 | 0.218 | 5.54 |
2-1/2 | 2.875 | 73.02 | 0.083 | 2.11 | 0.083 | 2.11 | 0.120 | 3.05 | 0.120 | 3.05 | 0.203 | 5.16 | 0.203 | 5.16 | 0.276 | 7.01 | 0.276 | 7.01 |
3 | 3.500 | 88.90 | 0.083 | 2.11 | 0.083 | 2.11 | 0.120 | 3.05 | 0.120 | 3.05 | 0.216 | 5.49 | 0.216 | 5.49 | 0.300 | 7.62 | 0.300 | 7.62 |
3-1/2 | 4.000 | 101.60 | 0.083 | 2.11 | 0.083 | 2.11 | 0.120 | 3.05 | 0.120 | 3.05 | 0.226 | 5.74 | 0.226 | 5.74 | 0.318 | 8.08 | 0.318 | 8.08 |
4 | 4.500 | 114.30 | 0.083 | 2.11 | 0.083 | 2.11 | 0.120 | 3.05 | 0.120 | 3.05 | 0.237 | 6.02 | 0.237 | 6.02 | 0.337 | 8.56 | 0.337 | 8.56 |
5 | 5.563 | 141.30 | 0.109 | 2.77 | 0.109 | 2.77 | 0.134 | 3.40 | 0.134 | 3.40 | 0.258 | 6.55 | 0.258 | 6.55 | 0.375 | 9.53 | 0.375 | 9.53 |
6 | 6.625 | 168.27 | 0.109 | 2.77 | 0.109 | 2.77 | 0.134 | 3.40 | 0.134 | 3.40 | 0.280 | 7.11 | 0.280 | 7.11 | 0.432 | 10.97 | 0.432 | 10.97 |
8 | 8.625 | 219.07 | 0.109 | 2.77 | 0.109 | 2.77 | 0.148 | 3.76 | 0.148 | 3.76 | 0.322 | 8.18 | 0.322 | 8.18 | 0.500 | 12.70 | 0.500 | 12.70 |
10 | 10.75 | 273.05 | 0.134 | 3.40 | 0.134 | 3.40 | 0.165 | 4.19 | 0.165 | 4.19 | 0.365 | 9.27 | 0.365 | 9.27 | 0.500 | 12.70 | 0.594 | 15.09 |
12 | 12.75 | 323.85 | 0.156 | 3.96 | 0.156 | 3.96 | 0.180 | 4.57 | 0.180 | 4.57 | 0.375 | 9.53 | 0.406 | 10.31 | 0.500 | 12.70 | 0.688 | 17.48 |
14 | 14.00 | 355.60 | 0.156 | 3.96 | 0.156 | 3.96 | 0.188 | 4.78 | 0.250 | 6.35 | x | x | 0.438 | 11.13 | x | x | 0.750 | 19.05 |
16 | 16.00 | 406.40 | 0.165 | 4.19 | 0.165 | 4.19 | 0.188 | 4.78 | 0.250 | 6.35 | x | x | 0.500 | 12.70 | x | x | 0.844 | 21.44 |
18 | 18.00 | 457.20 | 0.165 | 4.19 | 0.165 | 4.19 | 0.188 | 4.78 | 0.250 | 6.35 | x | x | 0.562 | 14.27 | x | x | 0.938 | 23.83 |
20 | 20.00 | 508.00 | 0.188 | 4.78 | 0.188 | 4.78 | 0.218 | 5.54 | 0.250 | 6.35 | x | x | 0.594 | 15.09 | x | x | 1.031 | 26.19 |
22 | 22.00 | 558.80 | 0.188 | 4.78 | 0.188 | 4.78 | 0.218 | 5.54 | 0.250 | 6.35 | x | x | x | x | x | x | 1.125 | 28.58 |
24 | 24.00 | 609.60 | 0.218 | 5.54 | 0.218 | 5.54 | 0.250 | 6.35 | 0.250 | 6.35 | x | x | 0.688 | 17.48 | x | x | 1.219 | 30.96 |
26 | 26.00 | 660.40 | x | x | x | x | x | x | 0.312 | 7.92 | x | x | x | x | x | x | x | x |
28 | 28.00 | 711.20 | x | x | x | x | x | x | 0.312 | 7.92 | x | x | x | x | x | x | x | x |
30 | 30.00 | 762.00 | 0.250 | 6.35 | 0.250 | 6.35 | 0.312 | 7.92 | 0.312 | 7.92 | x | x | x | x | x | x | x | x |
32 | 32.00 | 812.80 | x | x | x | x | x | x | 0.312 | 7.92 | x | x | 0.688 | 17.48 | x | x | x | x |
34 | 34.00 | 863.60 | x | x | x | x | x | x | 0.312 | 7.92 | x | x | 0.688 | 17.48 | x | x | x | x |
36 | 36.00 | 914.40 | x | x | x | x | x | x | 0.312 | 7.92 | x | x | 0.750 | 19.05 | x | x | x | x |