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NACE MR 0175 heat treatment conditions
In Par. 3.2 of NACE MR 0175, only a restricted number of heat treatment conditions are allowed: hot rolled, annealed, normalized, normalized and tempered, normalized + austenized + quenched + tempered, austenized + quenched + tempered. Some heat treatment conditions like thermomechanical rolling...- ulyssess
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- Replies: 0
- Forum: Corrosion engineering
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ASME SA20 impact testing and marking with LTV
According ASME SA 20, par. 12.1.7, plates shall be marked with the letters "LTV", if Charpy-V-notch tests are carried out. Does this marking also apply in following cases? a) Plate is ordered with Charpy-V-notch testing only for information, i.e. without any minimum requirement b) Plate is...- ulyssess
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- Replies: 2
- Forum: ASME (mechanical) Code Issues
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Accelerated cooling after normalizing
Hello Some ASME standards permit an accelerated cooling after normalizing when permitted by the purchaser. e.g. SA387-5.1: accelerated cooling from austenitizing temperature by air blasting or liquid quenching, followed by tempering e.g. SA516-5.4: cooling rates faster than those obtained by...- ulyssess
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- Replies: 1
- Forum: Boiler and Pressure Vessel engineering
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Edition of ASME material standard mandatory
Hallo As far as a know, when you buy ASME material, you should order the same edition + addenda then used for the design of the vessel. Material bought on stock can also be used, if the QC manager verifies, that the properties are identical to the material initially required. The question is...- ulyssess
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- Replies: 1
- Forum: Metal and Metallurgy engineering
