The best replacement for steel core is lead core.

The best alternatives to steel core are rated as following:
★★★★★  lead core
★★★  steel case
★★★  armor piercing

Your alternative for steel core is not listed? Suggest!


No companions for steel core have been suggested so far.
You have in mind a companion for steel core and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of steel core in all years. Click on graph for more.
steel core
lead core
steel case