NVA690 Det Norske Veritas certification, AB/AQ70 offshore steel plate, A690 offshore steel fixed rol

NVA690 Det Norske Veritas certification, AB/AQ70 offshore steel plate, A690 offshore steel fixed rol

NVA690 is a Det Norske Veritas certified offshore steel, and AB/AQ70 is an American Bureau of Shipping certified offshore steel.

NVA690 steel plate fixed rolling: Wugang Xiangyang

NVA690 steel plate is usually quenched and tempered, normalized, thermomechanically rolled + tempered

Offshore platform: It is a special place for operations on the ocean, and the service life is 50% higher than that of ships. The development of marine engineering steel, and the first to complete the certification of ABS, DNV, CCS three ship classes, has obtained the production license qualification of the manufacturer only Wugang, and in the large thickness of Z-direction steel, high-strength offshore platform steel key parts to fill the domestic gap, to achieve the localization of high-end steel plate.

There are also steel for offshore platforms: AQ43, DQ43, EQ43, FQ43, AQ47, DQ47, EQ47, AQ51, DQ51, FQ51, EQ51, AQ56, DQ56, EQ56, FQ56, AQ63, DQ63, EQ63, FQ63, AQ70, DQ70, EQ70, AQ70, A, B, D, E, AH32, DH32、EH32、FH32、AH36、DH36、EH36、FH36、AH40、DH40、EH40、FH40、AH420、DH420、EH420、FH420、AH460、DH460、EH460、FH460、AH500、DH500、EH500、FH500、AH550、DH550、EH550、FH550、AH620、DH620、 EH620、FH620、AH690、DH690、EH690、FH690、A514GrQ 、A517GrQ .

A1100 Repeat Test

1101 If one or more sampling results are unqualified, the tested steel pipes will be rejected, but twice the number of steel pipes in the batch can be re-selected for testing. All these tests should be met with satisfactory results, otherwise the batch will be rejected in one batch. It is allowed to re-heat treat the batch of steel pipes and then re-test. The test should be performed in the same way as the initial test. All results should be satisfactory, otherwise the entire batch will be rejected.

A1200 Mark

1201 The manufacturing plant shall clearly mark the steel pipe as required by Chapter 1, Section 1.

The nine classification societies are China Classification Society (CCS), Det Norske Veritas (DVN), American Bureau of Shipping (ABS), Bureau Veritas (BV), Lloyd's Register (LR), Korea Bureau of Shipping (KR), Japan Maritime Association (ClassNK), Italian Classification Society (RINA), Russian Bureau of Shipping (RS)