ASTM · ASTM B338 / ASME SB338
符合 ASTM B338 / ASME SB 338 标准的钛管：规格与合金牌号
ASTM B338 标准技术要求
ASTM B338 规范规定了用于热交换器、表面冷凝器和蒸发器的钛及钛合金无缝管和焊接管的制造要求。EV Group China 提供完全符合这些工程标准的金属产品。
| 牌号 (Grade) | UNS 编号 | 合金描述 |
|---|---|---|
| Grade 1 | R50250 | 非合金钛 |
| Grade 2 | R50400 | 非合金钛 |
| Grade 2H | R50400 | 非合金钛 (最低抗拉强度 400 MPa) |
| Grade 3 | R50550 | 非合金钛 |
| Grade 4 | R50700 | 非合金钛 |
| Grade 5 | R56400 | Ti-6Al-4V |
| Grade 6 | R54520 | Ti-5Al-2.5Sn |
| Grade 7 | R52400 | Ti-Pd (0.12–0.25%) |
| Grade 7H | R52400 | Ti-Pd (0.12–0.25%, 最低抗拉强度 400 MPa) |
| Grade 9 | R56320 | Ti-3Al-2.5V |
| Grade 11 | R52250 | Ti-Pd (0.12–0.25%) |
| Grade 12 | R53400 | Ti-0.3Mo-0.8Ni |
| Grade 13 | R53413 | Ti-0.5Ni-0.05Ru |
| Grade 14 | R53414 | Ti-0.5Ni-0.05Ru |
| Grade 15 | R53415 | Ti-0.5Ni-0.05Ru |
| Grade 16 | R52402 | Ti-Pd (0.04–0.08%) |
| Grade 16H | R52402 | Ti-Pd (0.04–0.08%, 最低抗拉强度 400 MPa) |
| Grade 17 | R52252 | Ti-Pd (0.04–0.08%) |
| Grade 18 | R56322 | Ti-3Al-2.5V + Pd |
| Grade 19 | R58640 | Ti-3Al-8V-6Cr-4Zr-4Mo |
| Grade 20 | R58645 | Ti-3Al-8V-6Cr-4Zr-4Mo + Pd |
| Grade 21 | R58210 | Ti-15Mo-3Al-2.7Nb-0.25Si |
| Grade 23 | R56407 | Ti-6Al-4V ELI |
| Grade 24 | R56405 | Ti-6Al-4V + Pd |
| Grade 25 | R56403 | Ti-6Al-4V-Ni-Pd |
| Grade 26 | R52404 | Ti-Ru (0.08–0.14%) |
| Grade 26H | R52404 | Ti-Ru (0.08–0.14%, 最低抗拉强度 400 MPa) |
| Grade 27 | R52254 | Ti-Ru (0.08–0.14%) |
| Grade 28 | R56323 | Ti-3Al-2.5V + Ru |
| Grade 29 | R56404 | Ti-6Al-4V ELI + Ru |
| Grade 30 | R53530 | Ti-0.3Co-0.05Pd |
| Grade 31 | R53532 | Ti-0.3Co-0.05Pd |
| Grade 32 | R55111 | Ti-5Al-1Sn-1Zr-1V-0.8Mo |
| Grade 33 | R53442 | Ti-0.4Ni-0.015Pd-0.025Ru-0.15Cr |
| Grade 34 | R53445 | Ti-0.4Ni-0.015Pd-0.025Ru-0.15Cr |
| Grade 35 | R56340 | Ti-4.5Al-2Mo-1.6V-0.5Fe-0.3Si |
| Grade 36 | R58450 | Ti-45Nb |
| Grade 37 | R52815 | Ti-1.5Al |
| Grade 38 | R54250 | Ti-4Al-2.5V-1.5Fe |
| Grade 39 | R53390 | Ti-0.25Fe-0.4Si |
ASTM B338 技术要求以英制单位为准，SI 单位仅供参考。带有“H”后缀的牌号具有更高的抗拉强度 (UTS)，并已获得压力容器使用认证。
该规范由 ASTM B10 委员会制定。对于蒸汽锅炉及压力容器的设计，必须遵循 ASME 的相关规定（第 II 卷，SB338 规范）。