Emissivity Table & Radiation Calculator

Look up emissivity values for common materials and calculate radiation heat transfer. Polished metals low ε (0.03-0.10), oxidized metals moderate (0.5-0.9), non-metals high (0.8-0.98). Effective emissivity of parallel surfaces.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)
σy — Normal Stress Y (MPa)
τxy — Shear Stress (MPa)
⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.
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How to Use

Enter the values for the patient or scenario you are assessing. Look up emissivity values for common materials and calculate radiation heat transfer. Polished metals low ε (0.03-0.10), oxidized metals moderate (0.5-0.9), non-metals high (0.8-0.98). Effective emissivity of parallel surfaces. Use the emissivity result to inform your clinical assessment.

Frequently Asked Questions