From the USDA database - 3 oz lean round steak:
Beef, round, top round, separable lean and fat, trimmed to 1/8" fat, choice, cooked, broiled
NDB No: 13896 Nutrient Units 3 oz
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85 g
Proximates
Water g 49.691
Energy kcal 190.400
Energy kj 795.600
Protein g 26.095
Total lipid (fat) g 8.729
Ash g 1.003
Carbohydrate, by difference g 0.000
Fiber, total dietary g 0.000
Sugars, total g 0.000
Minerals
Calcium, Ca mg 5.950
Iron, Fe mg 2.159
Magnesium, Mg mg 17.000
Phosphorus, P mg 158.950
Potassium, K mg 210.800
Sodium, Na mg 34.000
Zinc, Zn mg 4.326
Copper, Cu mg 0.057
Manganese, Mn mg 0.009
Selenium, Se mcg 27.540
Vitamins
Vitamin C, total ascorbic acid mg 0.000
Thiamin mg 0.054
Riboflavin mg 0.147
Niacin mg 4.718
Pantothenic acid mg 0.513
Vitamin B-6 mg 0.343
Folate, total mcg 8.500
Folic acid mcg 0.000
Folate, food mcg 8.500
Folate, DFE mcg_DFE 8.500
Vitamin B-12 mcg 1.564
Vitamin A, IU IU 0.000
Vitamin A, RAE mcg_RAE 0.000
Retinol mcg 0.000
Vitamin E (alpha-tocopherol) mg 0.374
Tocopherol, beta mg 0.000
Tocopherol, gamma mg 0.000
Tocopherol, delta mg 0.000
Vitamin K (phylloquinone) mcg 1.360
Lipids
Fatty acids, total saturated g 3.313
4:0 g 0.000
6:0 g 0.000
8:0 g 0.000
10:0 g 0.019
12:0 g 0.019
14:0 g 0.259
16:0 g 2.066
18:0 g 0.951
Fatty acids, total monounsaturated g 3.722
16:1 undifferentiated g 0.369
18:1 undifferentiated g 3.341
20:1 g 0.014
22:1 undifferentiated g 0.000
Fatty acids, total polyunsaturated g 0.337
18:2 undifferentiated g 0.231
18:3 undifferentiated g 0.084
18:4 g 0.000
20:4 undifferentiated g 0.021
20:5 n-3 g 0.000
22:5 n-3 g 0.000
22:6 n-3 g 0.000
Cholesterol mg 56.100
Amino acids
Tryptophan g 0.171
Threonine g 1.037
Isoleucine g 1.181
Leucine g 2.065
Lysine g 2.193
Methionine g 0.676
Cystine g 0.335
Phenylalanine g 1.025
Tyrosine g 0.827
Valine g 1.288
Arginine g 1.678
Histidine g 0.828
Alanine g 1.578
Aspartic acid g 2.364
Glutamic acid g 3.896
Glycine g 1.580
Proline g 1.237
Serine g 1.023
Hydroxyproline g 0.273
Other
Alcohol, ethyl g 0.000
Caffeine mg 0.000
Theobromine mg 0.000
Carotene, beta mcg 0.000
Carotene, alpha mcg 0.000
Cryptoxanthin, beta mcg 0.000
Lycopene mcg 0.000
Lutein + zeaxanthin mcg 0.000
USDA National Nutrient Database for Standard Reference, Release 16 (July 2003)