Superheated Vapor Properties for Steam - (4 MPa - 8 MPa)

P=4.0 MPa (250.4°C) Temp volume energy enthalpy entropy °C v(m^3/kg) u(kJ/kg) h(kJ/kg) s(kJ/kg.K) Sat. 0.0498 2601.7 2800.8 6.070 275 0.0546 2668.9 2887.3 6.231 300 0.0589 2726.2 2961.7 6.364 350 0.0665 2827.4 3093.3 6.584 400 0.0734 2920.7 3214.5 6.771 450 0.0800 3011.0 3331.2 6.939 500 0.0864 3100.3 3446.0 7.092 600 0.0989 3279.4 3674.9 7.371 700 0.1110 3462.4 3906.3 7.621 800 0.1229 3650.6 4142.3 7.852 900 0.1348 3844.8 4383.9 8.067 1000 0.1465 4045.1 4631.2 8.270

P=4.5 MPa (257.4°C) volume energy enthalpy entropy v(m^3/kg) u(kJ/kg) h(kJ/kg) s(kJ/kg.K) 0.0441 2599.7 2797.9 6.020 0.0473 2651.3 2864.3 6.143 0.0514 2713.0 2944.2 6.285 0.0584 2818.6 3081.5 6.515 0.0648 2914.2 3205.6 6.707 0.0708 3005.8 3324.2 6.877 0.0765 3096.0 3440.4 7.032 0.0877 3276.4 3670.9 7.313 0.0985 3460.0 3903.3 7.565 0.1092 3648.8 4140.0 7.796 0.1197 3843.3 4382.1 8.012 0.1302 4043.9 4629.8 8.214

P=5.0 MPa (263.9°C) volume energy enthalpy entropy v(m^3/kg) u(kJ/kg) h(kJ/kg) s(kJ/kg.K) 0.0395 2597.0 2794.2 5.974 0.0414 2632.3 2839.5 6.057 0.0454 2699.0 2925.7 6.211 0.0520 2809.5 3069.3 6.452 0.0578 2907.5 3196.7 6.648 0.0633 3000.6 3317.2 6.821 0.0686 3091.7 3434.7 6.978 0.0787 3273.3 3666.8 7.261 0.0885 3457.7 3900.3 7.514 0.0982 3646.9 4137.7 7.746 0.1077 3841.8 4380.2 7.962 0.1172 4042.6 4628.3 8.165

P=6.0 MPa (275.6°C) Temp volume energy enthalpy entropy °C v(m^3/kg) u(kJ/kg) h(kJ/kg) s(kJ/kg.K) Sat. 0.0325 2589.9 2784.6 5.890 300 0.0362 2668.4 2885.5 6.070 350 0.0423 2790.4 3043.9 6.336 400 0.0474 2893.7 3178.2 6.543 450 0.0522 2989.9 3302.9 6.722 500 0.0567 3083.1 3423.1 6.883 600 0.0653 3267.2 3658.7 7.169 700 0.0736 3453.0 3894.3 7.425 800 0.0817 3643.2 4133.1 7.658 900 0.0896 3838.8 4376.6 7.875 1000 0.0976 4040.1 4625.4 8.079

P=7.0 MPa (285.8°C) volume energy enthalpy entropy v(m^3/kg) u(kJ/kg) h(kJ/kg) s(kJ/kg.K) 0.0274 2581.0 2772.6 5.815 0.0295 2633.5 2839.9 5.934 0.0353 2770.1 3016.9 6.230 0.0400 2879.5 3159.2 6.450 0.0442 2979.0 3288.3 6.635 0.0482 3074.3 3411.4 6.800 0.0557 3260.9 3650.6 7.091 0.0629 3448.3 3888.2 7.349 0.0699 3639.5 4128.4 7.584 0.0768 3835.7 4373.0 7.801 0.0836 4037.5 4622.5 8.006

P=8.0 MPa (295.0°C) volume energy enthalpy entropy v(m^3/kg) u(kJ/kg) h(kJ/kg) s(kJ/kg.K) 0.0235 2570.5 2758.7 5.745 0.0243 2592.3 2786.5 5.794 0.0300 2748.3 2988.1 6.132 0.0343 2864.6 3139.4 6.366 0.0382 2967.8 3273.3 6.558 0.0418 3065.4 3399.5 6.727 0.0485 3254.7 3642.4 7.022 0.0548 3443.6 3882.2 7.282 0.0610 3635.7 4123.8 7.518 0.0671 3832.6 4369.3 7.737 0.0731 4035.0 4619.6 7.942

• Saturation Properties - Temperature Table (0.01°C - 150°C)
• Saturation Properties - Temperature Table (150°C - 373.95°C)
• Saturation Properties - Pressure Table (1 kPa - 1 MPa)
• Saturation Properties - Pressure Table (1 MPa - 22.064 MPa)
• Superheated Vapor Properties - (0.01 MPa - 0.4 MPa)
• Superheated Vapor Properties - (0.5 MPa - 1.4 MPa)
• Superheated Vapor Properties - (1.6 MPa - 3.5 MPa)
• Superheated Vapor Properties - (4 MPa - 8 MPa)
• Superheated Vapor Properties - (9 MPa - 40 MPa)
• Compressed Liquid Water Properties - (5 MPa - 30 MPa)

Source of data: NIST Chemistry WebBook - accessed Jan 2008