Are you a steel nerd? Quiz Welcome to your Are you a steel nerd? Quiz Which company developed S30V? Crucible Carpenter Hitachi Spyderco None What steel phase are knife steels primarily made up of? Pearlite Ferrite Sorbite Martensite None At what hardness range is the steel in a typical finished knife? 35-45 Rockwell A 55-65 Rockwell C 6-7 Mohs 75-85 Rockwell B None What is an air hardening steel? A steel that does not corrode in atmosphere A steel that can form a martensitic microstructure by quenching from austenite in air A steel so sharp it can divide oxygen molecules A steel that absorbs nitrogen from the air thereby increasing its hardness through nitriding None What turns iron into steel? Carbon Martensite Rapid cooling from high temperature Forging None What makes steel stainless? Carbon Protective Coating Chromium Sorbite None What is secondary hardening? Tempering at high temperatures that leads to an increase in hardness Heating and quenching a second time Cold forging for added hardness An 80's hair metal band None What is kinetics? A brand of building toys The study of microstructures Softening of steel Rate of transformation None What is tempering? Heat treatment of steel Reducing hardness of steel by heating after quenching Rapid cooling Controlling one's temper None Why are you interested in steel? I like knives I make knives I like science I'm not interested in steel None What would you like to learn about steel? Comparisons between different steels What controls steel properties How to best heat treat steel History of steel Information about individual steels General metallurgy I'm not interested in learning about steel None Time's up Published by Larrin View all posts by Larrin
