management damage mechanism determination for api rp api fitness-for-service and remaining life assessment api risk based inspection field metallographic replication (fmr) to analyze microstructure in-situ high-temperature hydrogen attack (htha) analysis welding consulting and evaluation welding services fracture...
hardness process. advantages: • approximately the same structure and constant hardness over the whole workpiece cross section (and not only hard surface, like when nitriding) disadvantages: • delay and length variation • partial starting of the shank range is mostly necessary because of danger of fracture...