Muon radiative energy loss (in 1.0E06 cm^2/g) in iron (Fe) with Z = 26, A = 55.845(2) (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 0.8313 0.3910 0.4113 1.6337 5. 1.1355 0.9789 0.4390 2.5534 10. 1.3823 1.4402 0.4292 3.2517 20. 1.6361 1.9098 0.4124 3.9583 50. 1.9717 2.5968 0.3936 4.9622 100. 2.2135 3.0641 0.3845 5.6621 200. 2.4380 3.4892 0.3801 6.3073 500. 2.6961 3.8918 0.3799 6.9678 1000. 2.8559 4.1109 0.3859 7.3528 2000. 2.9834 4.2718 0.3957 7.6509 5000. 3.1054 4.4079 0.4136 7.9269 10000. 3.1675 4.4717 0.4316 8.0708 20000. 3.2095 4.5132 0.4525 8.1753 50000. 3.2448 4.5450 0.4852 8.2749 100000. 3.2610 4.5582 0.5131 8.3323