Steam and Water · Free Excel and PDF
Superheated Steam Table
Superheated steam table giving enthalpy and specific volume for common boiler and turbine pressures and temperatures.
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- 22 rows of reference data
- Print ready A4 PDF
- How to Use sheet with steps
- Basis and standard stated
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Enthalpy h in kJ/kg
| P bar a (T sat) | 150 °C | 200 °C | 250 °C | 300 °C | 350 °C | 400 °C | 450 °C | 500 °C | 550 °C | 600 °C |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 (99.6 °C) | 2776.6 | 2875.5 | 2974.5 | 3074.5 | 3175.8 | 3278.5 | 3382.8 | 3488.7 | 3596.3 | 3705.6 |
| 2 (120.2 °C) | 2769.1 | 2870.8 | 2971.3 | 3072.1 | 3173.9 | 3277.0 | 3381.5 | 3487.6 | 3595.4 | 3704.8 |
| 5 (151.8 °C) | 2855.9 | 2961.1 | 3064.6 | 3168.1 | 3272.3 | 3377.7 | 3484.4 | 3592.6 | 3702.5 | |
| 10 (179.9 °C) | 2828.3 | 2943.2 | 3051.7 | 3158.2 | 3264.4 | 3371.2 | 3479.0 | 3588.1 | 3698.6 | |
| 15 (198.3 °C) | 2796.0 | 2924.0 | 3038.3 | 3148.0 | 3256.4 | 3364.7 | 3473.6 | 3583.5 | 3694.6 | |
| 20 (212.4 °C) | 2903.2 | 3024.3 | 3137.6 | 3248.2 | 3358.1 | 3468.1 | 3578.9 | 3690.7 | ||
| 30 (233.9 °C) | 2856.5 | 2994.3 | 3116.1 | 3231.6 | 3344.7 | 3457.0 | 3569.6 | 3682.8 | ||
| 40 (250.4 °C) | 2961.7 | 3093.3 | 3214.4 | 3331.0 | 3445.8 | 3560.2 | 3674.8 | |||
| 60 (275.6 °C) | 2885.5 | 3043.9 | 3178.2 | 3302.8 | 3422.9 | 3541.2 | 3658.8 | |||
| 80 (295.0 °C) | 2786.4 | 2988.1 | 3139.3 | 3273.2 | 3399.4 | 3521.8 | 3642.4 | |||
| 100 (311.0 °C) | 2924.0 | 3097.4 | 3242.3 | 3375.1 | 3501.9 | 3625.8 |
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Specific volume v in m³/kg
| P bar a (T sat) | 150 °C | 200 °C | 250 °C | 300 °C | 350 °C | 400 °C | 450 °C | 500 °C | 550 °C | 600 °C |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 (99.6 °C) | 1.9367 | 2.1725 | 2.4062 | 2.6389 | 2.8710 | 3.1027 | 3.3342 | 3.5656 | 3.7968 | 4.0279 |
| 2 (120.2 °C) | 0.9599 | 1.0805 | 1.1989 | 1.3162 | 1.4330 | 1.5493 | 1.6655 | 1.7814 | 1.8973 | 2.0130 |
| 5 (151.8 °C) | 0.4250 | 0.4744 | 0.5226 | 0.5701 | 0.6173 | 0.6642 | 0.7109 | 0.7576 | 0.8041 | |
| 10 (179.9 °C) | 0.2060 | 0.2327 | 0.2580 | 0.2825 | 0.3066 | 0.3304 | 0.3541 | 0.3777 | 0.4011 | |
| 15 (198.3 °C) | 0.1324 | 0.1520 | 0.1697 | 0.1866 | 0.2030 | 0.2192 | 0.2352 | 0.2510 | 0.2668 | |
| 20 (212.4 °C) | 0.1115 | 0.1255 | 0.1386 | 0.1512 | 0.1635 | 0.1757 | 0.1877 | 0.1996 | ||
| 30 (233.9 °C) | 0.0706 | 0.0812 | 0.0906 | 0.0994 | 0.1079 | 0.1162 | 0.1244 | 0.1324 | ||
| 40 (250.4 °C) | 0.0589 | 0.0665 | 0.0734 | 0.0800 | 0.0864 | 0.0927 | 0.0989 | |||
| 60 (275.6 °C) | 0.0362 | 0.0423 | 0.0474 | 0.0522 | 0.0567 | 0.0610 | 0.0653 | |||
| 80 (295.0 °C) | 0.0243 | 0.0300 | 0.0343 | 0.0382 | 0.0418 | 0.0452 | 0.0485 | |||
| 100 (311.0 °C) | 0.0224 | 0.0264 | 0.0298 | 0.0328 | 0.0357 | 0.0384 |
About this Table
Superheated steam table giving enthalpy and specific volume for common boiler and turbine pressures and temperatures.
Basis: IAPWS IF97 industrial formulation for water and steam. Saturation temperature is shown beside each pressure.
How to use
- Find the pressure row (absolute).
- Read across to the steam temperature.
- Blank cells are below saturation: the steam would be wet, not superheated.
Notes
- Density = 1 ÷ specific volume.
- Degree of superheat = steam temperature − saturation temperature.
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Frequently Asked Questions
What is the enthalpy of steam at 10 bar a and 300 °C?
3051.7 kJ/kg.
What is the density of steam at 40 bar a and 400 °C?
About 13.62 kg/m³.
Why are some cells blank?
That temperature is below the saturation temperature for the pressure.
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