化学成分：合金牌号化学成分（%）CSiMnSPCrCoWMoTiAlZrNi其它不大于GH41450.080.501.000.0100.02014.0~17.0——Nb0.70~1.202.25~2.750.40~1.0—基Fe5.0~9.0GH2170.08~0.130.101.000.0300.03024.0~25.08.50~9.503.50~4.001.00~1.501.90~2.401.00~1.40≤0.05基GH30300.120.800.700.0100.01519.0~22.0———0.15~0.35≤0.15—基Pb≤0.001GH6000.150.501.000.0150.02014.0~17.0≤1.00————Cu≤0.50基Fe6.0~10.0GH41690.080.350.350.0150.01517.0~21.0—B≤0.0062.80~3.300.65~1.150.20~0.60Nb4.75~5.5050.0~55.0Fe余上海朝展镍基高温合金GH217/GH600可以提供真空冶炼或非真空冶炼的精密铸造件，锻件(方形,环件,异形环件,套筒)，棒材，法兰片。力学性能：合金牌号试验温度（℃）性能HRB（mm）持久性能σb（MPa）δ（%）ψ（%）σ（MPa）τ（小时）GH414520≥1128≥20————GH21720≥740≥8.3≥19—157（850℃）≥100GH303020≥686≥30————GH60020≥500≥30————GH416920≥1270≥12≥15346690（650℃）≥25)