SAE AMS 5578G-2003
真空感应加自耗电极真空熔炼的,固溶热处理的,脱溶淬硬的含12Cr-8.5Ni-0.30Cb-1.1Ti-2.0Cu耐腐蚀和耐热的焊接钢管,UNS S45500
Steel, Corrosion and Heat-Resistant, Welded Tubing 12Cr - 8.5Ni - 0.30Cb - 1.1Ti - 2.0Cu Vacuum Induction Plus Consumable Electrode Vacuum Melted Solution Heat Treated, Precipitation Hardenable UNS S45500