AH690 is a high-strength steel for ship plates and offshore platforms. The size, shape, weight and allowable deviation of the steel plate should comply with the regulations of GAH690/T709. The thickness deviation is -0.3mm.
AH690 delivery status:
AH690 steel plates are usually delivered in quenched and tempered, normalized, thermo-mechanical rolled + tempered states.
Steel plates shall be delivered sheared or flame cut.
AH690 non-destructive testing:
Z-direction steel plates should be subjected to ultrasonic flaw detection, and the flaw detection level should be specified in the contract.
According to the requirements of the buyer and upon agreement between the supplier and the buyer, other steel plates can also be subjected to non-destructive testing.
