Q690ZTE steel for offshore platform description
Executive standard: GB/T 31945-2015 steel plate for jack-up platform legs
Grade: Q690ZTE
Delivery status: Quenching + tempering
Q690ZTE steel definition: Q represents the symbol of yield strength, 690 represents the value of yield strength, and the common steel plate quality grades are E and F respectively. The impact temperature of E grade steel plate is -40℃, and the impact temperature of F grade steel plate is -60℃.
Q690ZTE steel for offshore platform is mainly used for ships and marine engineering, making racks and semi-circular plates for jack-up platform legs.
Q690ZT high-strength steel plate rolling conditions:
1. Indicate the thickness, width and length of the steel plate
2. The quenching and tempering heat treatment of the steel plate should be carried out by the buyer
3. Each steel plate shall be inspected by ultrasonic flaw detection, and the contract level shall be indicated in the contract.
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