This material is classified under letters G to J of the Unified Numbering System. Maraging (“MAR-aging”) forms of this material contain hard precipitate particles over an artificially elongated aging period. Modern manufacturing of this material uses a supersonic oxygen jet and burnt lime to generate a basic slag. (-5[1])Case-hardening of this material (10[1])can be accomplished using carburization. Rapidly quenching one (10[1])form of this material produces crystalline martensite. Hot-dip and electrogalvanization (10[1])are methods for plating this material to prevent corrosion, which can also be accomplished by adding chromium. For 10 points, name this alloy of iron and carbon that includes a stainless variety. ■END■ (10[1])