Material number 1.2345 hot work tool steel plate

Model Number: ZXL092 Brand Name: Baosteel, TISCO Key Specifications/Special Features: DescriptionUTOPMO4 is a 5% chromium hot work tool steel designed particularly for applications requiring extreme toughness combined with good red hardness, it provides an extra margin of safest in tools subject to heavy hammer blows, and those tools containing deep recesses or sharp cornersWhile UTOPMO4 has been designed primarily as a hot work tool steel, it has been used in many cold work applications where extra toughness is required at the sacrifice o some wear-resistanceApplicationsUTOPMO4 has been primarily for tools requiring resistance to softening at elevated temperaturesSuch tools include forging dies and punches, die-casting dies, aluminum extrusion dies, hot heading dies, piercing and forming punchesChemical composition (in weight%)
C:0.51
Si:0.95
Mn:0.30
Cr: 5.0
V: 0.9
Mo: 1.35
Physical properties (average values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 215
Density [g/cm³]: 7.7
Thermal conductivity [W/m.K]: 25.0
Electric resistivity [Ohm mm²/m]: 0.52
Specific heat capacity [J/g.K]: 0.46
Soft annealing
Heat to 760-820℃, cool slowly in furnace
This will produce a maximum Brinell hardness of 250
Stress relieving
To relieve machining strains for greater accuracy in hardening, first rough machine, then anneal below the critical 649/677℃a minimum of one hour at temperature, and cool very slowly, followed by finish machining
Hardening
Harden from a temperature of 1000-1040℃followed by air, oil warm bath (450-550℃) quenching
Hardness after quenching is 54-58 HRC
Forging
Heat slowly and uniformly to a temperature of between 1093/1135℃and forge
Do not work the steel below 927℃
Reheat as often as necessary
Machinability
Machinability of UTOPMO4 may be rated between 55% and 65% o a 1% carbon water hardening tool steel, or about 40% to 50% of B1112
Specifications:
Grade:DIN X50CrVMo51
Standard: DIN, GB, AISI
Length: 1500-6000mm
Width: 100-1250mm
Thickness: 0.1-200mm
Certification: ISO
Technical treatment: cold-rolled and hot rolled

Packing and delivery
Packing: standard export seaworthy package or as customer’srequirements
Delivery: 7-20 days after received deposit of T/T