There are 1.006g of Trans-Fat in a Regular Burger according to the USDA Database. The amount decreases as it gets leaner, to 0.468g in 95% Lean Ground Beef. Steak contains No Trans-Fat.

Trans-Fat Content (by Part of the Cow)(per 3-4 oz):

Suet -- 0.000g
Brain -- 0.000g
Meat -- 0.000g
Lungs -- 0.000g
Spleen -- 0.000g
Thymus -- 0.000g
Pancreas -- 0.000g
Heart -- 0.136g
Liver -- 0.143g
Kidneys -- 0.170g
Tripe* -- 0.200g
Tongue -- 0.714g

*per 100g