case-hardened steel


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Noun1.case-hardened steel - steel with a surface that is much harder than the interior metal
steel - an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
References in periodicals archive ?
A: Well, I like black guns, too, but am still more partial to blued and case-hardened steel and walnut.
For the basic BIG-PLUS holders, only premium-alloy, case-hardened steel is used.
The SB brake unit has a cast-iron housing, case-hardened steel shaft, and cylindrical bearing designed to provide long service life as well as accommodate side loads up to 5000 lb.
The pepper mill mechanism is made of case-hardened steel, while the salt mill mechanism is made of treated stainless steel.
They use precision-ground, heat-treated gears and case-hardened steel shafts supported on both ends by anti-friction needle bearings or carbon graphite bushings.
Dual-sided hinges with case-hardened steel pins further bolster security.