Lateral expansion amount
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JB4744-2000 \"Inspection of Mechanical Properties of Welding Test Plates for Steel Pressure Vessels\" – Table 4 shows the values for low-temperature impact energy; for stainless steel, lateral expansion is used as the parameter； Ask ； What is lateral expansion?
The increase on both sides opposite the notch, resulting from the impact force. In other words, it’s about how much it has been extended
This post was last edited by akingname on 2011-12-12 at 11:49. The lateral expansion amount is the lateral increase that occurs on both sides of the back of the notch in the specimen during impact testing, as a result of the impact force applied during such testing. The measurement method is specified in GB/T12778-2008.
Reply to 3# akingname: I agree with the opinion in floor 3. During impact testing, it refers to the increase in lateral expansion on both sides of the back of the notch in the impact specimen, resulting from the impact force applied during the test. This is the lateral expansion amount. The lateral expansion amount is closely related to the toughness of the material. When the impact specimen is fractured, the greater the impact energy, the greater the lateral expansion ； When the impact energy is low, the lateral expansion is not significant.
I’m encountering the same issue; thank you
Is it only stainless steel that requires measurement of lateral expansion?