ASME SA-278 Class No. 40 Cast irons
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ASME SA-278 Class No. 40 Chemical Composition
ASME Boiler and Pressure Vessel Code An International Code Section II - Part A Ferrous Material Specifications, American Society of Mechanical Engineers, 2025
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ASME SA-278 Class No. 40 Physical Properties
Temperature
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ASME SA-278 Class No. 40 Heat Treatments
- Castings intended for use above 230°C (450°F) shall be stress relieved by placing them in a suitable furnace at a temperature not exceeding 200°C (400°F) and heating them uniformly to 565 - 650°C (1050 - 1200°F) for a minimum of 2 h and a maximum of 12 h.
Castings which are to be used at temperatures below 230°C (450°F), may be heat treated in accordance with above or they shall be cooled in the mold to 250°C (480°F) at an average rate of not more than 50°C/h (90°F/h) for castings up to 25 mm in section. For heavier sections the maximum cooling rate in degrees Celsius per hour shall be 1250 divided by the maximum section thickness.
ASME SA-278 Class No. 40 Mechanical Properties
Temperature
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ASME SA-278 Class No. 40 International Equivalent Materials
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- 34Cross References
- 3Composition
- 9Mechanical Properties
- 65Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- 10Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- -Total Suppliers