No fear. I even boiled one once for 10 minutes, after many soaks in various detergents.
I'm glad you posted this. I've never boiled a razor and it's good to hear from someone who has done it.
When I first started visiting shaving forums back in the olden days, the recommended way to clean a “new” old razor was to boil them. I’ve done it to dozens of razors, including adjustables, and never had a problem. YMMV. It’s great for getting the gunk off. I also pressure cooked a couple. I’ve run ‘em through the dishwasher, too, to get the soap buildup off them after using them for a while. (I hear gasping). So they can take quite a bit in the way of cleaning.