X63CrMoV51 and H11 are two different types of tool steel that differ in chemical composition, physical properties, and applications.
Chemical composition and physical properties:
X63CrMoV5-1 chemical composition:
Carbon C: 0.60-0.65
Silicon Si: 1.00-1.20
Manganese Mn: 0.30-0.50
Phosphorus P: ≤0.035
Sulfur S: ≤0.035
Chromium Cr: 5.00-5.50
Molybdenum Mo: 1.00-1.30
Vanadium V: 0.25-0.35
X63CrMoV51 is a tool steel with high hardness and wear resistance, but poor red hardness, and the hardness drops sharply at high temperatures.
H11 is an alloy tool steel with high chromium, molybdenum, and vanadium content, which gives it good wear resistance, toughness, and thermal fatigue resistance. H11 is resistant to oxidation and has high toughness and wear resistance at medium temperatures.
Application areas:
X63CrMoV51 steel is suitable for applications that require high hardness and wear resistance, such as cold working dies and tools.
H11 is more commonly used in hot working dies and tools, such as hot extrusion dies, hot stamping dies, etc., because it can still maintain good performance at high temperatures.
Application Use Hardness Application Use Hardness
Punching die HRC58~62 High-grade gauge HRC60~65
Forming roller HRC58~63 Thread rolling roller HRC60~63
Cross slot screw forming die HRC57~62 Original male die for cold extrusion die press HRC58~65
Stretching die HRC58~63 Cold heading die HRC58~62
Scissors HRC50~65 Thermosetting resin forming die HRC56~60
In summary, although both are tool steels, X63CrMoV51 is more suitable for cold working applications, while H11 is more suitable for hot working applications that require high temperature resistance and good toughness.
