SAE AMS5770D-1990
合金棒材和锻件 耐腐蚀和耐热 25Fe 20.5Cr 20N1 20Co 4.0Mo 4.0W 4.0(Cb + Ta)固溶和沉淀热处理(UNS R30590)
ALLOY BARS AND F0RGINGS@ CORROSION AND HEAT RESISTANT 25Fe - 20.5Cr - 20N1 - 20Co - 4.0Mo - 4.0W - 4.0(Cb + Ta) Solution and Precipitation Heat Treated (UNS R30590)