20Cr alloy low hardenability carburizing steel. This kind of steel hardenability low, low cardiac unit strength.
20CrMnTi in hardenability carburizing steel alloy. Such steel hardenability high thermal sensitivity is small, relatively uniform carburizing transition, with good mechanical properties and process performance.
18Cr2Ni4WA and 20Cr2Ni4A high hardenability hardened steel alloy. This kind of steel containing more Cr, Ni and other elements, high hardenability, and has good toughness and low temperature impact toughness.