7Search.ccquenched steel can have cracksquench cracks in steelwhy is steel quenchedhow does quenching make steel harderquench cracking due to poor machininghow to quench steelwhy does quenching harden steelwhat does quenching do to steelquenched and tempered steelcan you quench steel in waterquenching steel in waterquench and tempered steelwhy is steel quenched in oil