Are the heatsinks on S7 blades made of titanium?

I was checking out some old S7 boards and I noticed that the small heatsinks kinda look like titanium. Am I wrong or are they actually titanium?

ROFL... That out of the way, no. They common low cost and very thermally-conductive aluminum. Not much higher cost and less conductive Ti. Some of the heat sinks are anodized and their colors can range from golden, light or dark bronze, or normal silvery aluminum depending on what BM could get a hold of at the time.