PROPRIETARY WM T-75 Aceros para herramientas
Actualizaciones de datos
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PROPRIETARY WM T-75 Composición química
Ellwood Specialty Steel, Product Data Sheets,
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PROPRIETARY WM T-75 Propiedades físicas
Temperatura
Este material cuenta con 31 propiedades — aquí solo se muestra una parte.
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PROPRIETARY WM T-75 Tratamiento Térmico
- Forging:Heating for forging must be done slowly and uniformly. Soak through at 1900- 2050°F (1038-1121°C), and stop work when the temperature drops below 1650°F (899°C). After forging, cool slowly in lime, mica, dry ashes, or a furnace. Should always be annealed after forging.
Annealing:Heat slowly to 1550- 1650°F (843-899°C), hold until the entire mass is heated through and cool slowly in the furnace (40°F (22°C) per hour) to about 1000°F (538°C), after which the cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization.
Strain relieving:When desirable to relieve the strains of machining, heat slowly to 1100-1250°F (593-676°C), allow to equalize, and then cool in air.
Preheat for hardening:Warm slightly before charging into the preheat furnace, which should be operating at 1400-1500°F (760-816°C).
Hardening:It is a steel which has medium hardenability and the use of interrupted oil quenching is recommended to obtain optimum properties. The use of a salt bath, controlled atmosphere, or vacuum furnace is desirable to prevent decarburization. If this equipment is not available, pack hardening in spent pitch coke is suggested. The recommended austenitizing temperature range is 1850° to 1950°F (1010-1066°C). At the lower end of the range, the toughness of the steel will be maximized. At the higher end of the range, the elevated-temperature strength and thermal fatigue resistance will be maximized. For pressurized gas quenching in a vacuum furnace, the quench rate of the work piece to 1000°F (538°C) must be a minimum of 50°F (10°C) per minute.
Tempering:Typical tempering temperatures are 1050-1150°F (566-621°C), but may be varied depending upon the size of the work piece. Double tempering is mandatory, and triple tempering is recommended. Typical tempered hardnesses are given below for two austenitizing temperatures.
PROPRIETARY WM T-75 Propiedades mecánicas
Temperatura
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- 1Referencias cruzadas
- 7Composición
- 14Propiedades mecánicas
- 7Propiedades físicas
- 1Tratamiento térmico
- -Metalografía
- -Maquinabilidad
- -Esfuerzo-Deformación
- -Conformabilidad
- -Fatiga
- -Fractura
- -Bicho raro
- -Uniones
- -Revestimientos
- -Dimensiones
- -Tribología
- -Corrosión
- -Envejecimiento
- -Resistencia a la intemperie
- -Irradiación
- 1Proveedores Totales