Material name, material brand, characteristics, uses and available hardness values.
HMAX series hot working die steel HMAX-DHMAX-D is a kind of high heat resistance and medium toughness die steel, which improves the fracture toughness and thermal fatigue resistance. Working temperature above 700℃, it is an air-cooled hardened hot working die steel with high high temperature toughness and thermal stability, good cold and hot fatigue resistance and thermal wear resistance. HMAX-D is suitable for manufacturing hot working dies with high heating temperature and harsh service conditions, such as hot extrusion dies and hot precision forging dies for ferrous and nonferrous metals. The service life of steel is obviously longer than that of 3Cr2W8V steel. HRC48~50
HMAX-RHMAX-R is a new type of hot working die steel with high heat resistance and moderate toughness. Its service life is 2-6 times longer than that of 3Cr2W8V steel. It is suitable for manufacturing molds with high temperature and long contact time with the workpiece, which is easy to cause thermal deformation, collapse or thermal wear failure. Good thermal strength, red hardness and wear resistance. 2. Good thermal shock resistance and cold and hot fatigue resistance. 3. Good cutting performance, wide quenching temperature range and good hardenability. HMAX-R steel bearing inner ring forming punch), bearing inner ring chamfering punch), bearing inner ring forming die, bearing outer ring forming die, steel ball hot upsetting die, automobile valve hot forging die, automobile spring mandrel, automobile starting motor driving gear high-speed forging die, nut hot forging die, plunger hot pressing punch, copper hot extrusion die, bicycle crank rolling forging die, sewing machine shuttle head, etc. HRC50~55
HMAX-3HMAX-3 steel has moderate heat resistance and high toughness, excellent strength and toughness, high thermal strength, wear resistance, tempering stability, good cold and hot fatigue resistance and cold and hot workability, and its working temperature is above 700℃. The steel has strong versatility and is suitable for manufacturing dies working under the conditions of high temperature, high speed, high load and rapid cooling and heating. Its performance is superior to 4Cr5W2VSi and 3C2W8V steel, and its die life is 2-3 times that of 3C2W8V steel. HMAX-3 steel is suitable for hot forging dies, connecting rod roll forging dies, bearing ring blank hot extrusion dies, high-strength steel precision forging dies, small and medium-sized machine forging dies, high-temperature roll forging dies, aluminum alloy die casting dies and other dies, with good results. HRC48~50
HMAX-4HMAX-4 is a new type of hot working die steel, which is used for die casting, hot forging, hot extrusion, hot shearing and hot rolling of copper alloys. It is also a medium-carbon ultra-high strength, air-cooled hardened high-temperature die steel with good thermal strength, red hardness and wear resistance. Because HMAX-4 die steel has good comprehensive properties, it is suitable for manufacturing copper alloy die casting, hot forging, hot extrusion, hot shearing and hot rolling dies with high heating temperature and harsh service conditions. The die-casting dies of the synchronizer copper cone ring, copper elbow, 1/2 copper gate valve body, 1 copper gate valve body, copper tube hot extrusion die, bearing ring hot extrusion die and liquid forging piston die are 3-6 times more famous than 3CR2W8V. HRC52~55
HMAX-5 "cold and hot matrix steel has pure matrix, uniform annealing structure, excellent toughness and ductility in all directions, good wear resistance, good dimensional stability after heat treatment, excellent hardenability, good tempering softening resistance, good high temperature strength, good thermal fatigue resistance, excellent polishing performance, high hardness, high wear resistance and high toughness.
"HMAX-5 steel has excellent impact toughness, high wear resistance and high service hardness, and is suitable for all kinds of hot working (hot extrusion, die casting and hot forging with complex cavities) molds, mainly for hot working conditions with high toughness and high hardness, and can also be used as cold working mold materials (such as heavy stamping and cold forging), and can also be used for plastic molds with complex cavities with high mirror surface, high wear resistance and high toughness. It is also suitable for hot die section, hot stamping die, cold working die and engineering steel with very harsh working conditions, such as high-speed hot forging die (precision gear, crankshaft, connecting rod, valve core die, high-load punching die, wire rolling die, etc.). ); It is also suitable for reinforced plastics and compression molding dies with high wear resistance requirements; Hot extrusion die with high requirements for high temperature wear resistance.
HRC56~58
HMAX-6 "HMAX-6" is a matrix die steel with high heat resistance and high toughness, with extremely low sulfur content (< 5 ppm), pure matrix, uniform structure and no massive carbide, excellent impact property after tempering, high high temperature strength and high toughness.
""HMAX-6 is suitable for hot forging processes (such as punches) and high-temperature resistant dies (such as valves) which require extremely strict wear resistance. It is also suitable for dies or tools under working conditions such as hot forging, hot stamping, hot rolling, upsetting, axial closed die rolling and hot bending.
“HRC58~60