Charpy impact tests are routinely undertaken during the production of metals. ASTM A370 is the most used standard for measuring the toughness of metal samples. Testing is typically undertaken at room temperature, and also at -50degC for many grades, to align to common industry standards such as Norsok M-001.
However, a number of end user’s specifications will request testing at lower temperatures to confirm their toughness is retained. Typically, this is at -196degC, which is readily achieved by immersing samples in liquid nitrogen before testing.
Langley Alloys can effectively manage the sampling and testing process, giving you a quick turnaround. In addition, we will manage product batches to limit testing costs and co-ordinate ongoing supply through call-off arrangements.