Is it used for impact testing?
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Is the A320 L7M still used for impact tests when not operated in low-temperature conditions? Is the A320 L7M still used for impact tests when not operated in low-temperature conditions?
If it’s not used at low temperatures, why not choose B7M? There are many economies. Furthermore, as long as you specify that the material is L7M, you must meet its standards, because it is not possible to predict exactly how the product will be used over its entire lifetime. Stating that it is a low-temperature material means it can be used in low-temperature conditions.