NVD690 offshore steel plate, AB/DQ70 American Bureau of Shipping certification, D690 offshore steel

NVD690 offshore steel plate, AB/DQ70 American Bureau of Shipping certification, D690 offshore steel

NVD690 offshore steel plate, AB/DQ70 American Bureau of Shipping certification, D690 offshore steel fixed rolling

NVD690 is a Det Norske Veritas certified offshore steel, and AB/DQ70 is an American Bureau of Shipping certified offshore steel.

NVD690 steel plate fixed rolling: Wugang Xiangyang

NVD690 steel plate is usually in quenched and tempered, normalized, thermomechanically rolled + tempered state

Choose between Z25 or Z35. Flaw detection specification requirements, flaw detection grade requirements, Z-direction function requirements, classification society certification requirements, adding special alloy element requirements, etc.

NVD690 steel plate flaw detection requirements: one probe, two probe, three probe.

B500 mechanical properties

501 steel pipe should be tested in batches according to A800 regulations. The quantity of steel pipes in each batch shall be in accordance with the provisions of Table A2.

502 Two steel pipes should be selected from each of at least two batches of steel pipes, and one steel pipe should be selected from each of the remaining batches for testing. 503 Each steel pipe selected for the test shall be subjected to the following tests: seamless steel pipe:

--- a tensile test

--- a flattening test or a flexure test or an annular tensile test. Welded steel pipes:

--- a tensile test of the basic material

--- D≥508mm steel pipe is tested in a weld tensile test

--- two flattening tests or two punch flaring tests or two flexure tests (ERW and IW)

--- Two Flexure Test (SAW)

504 The results of all mechanical tests shall conform to the corresponding requirements of Table B2, or equivalent national or international standards.

There are also steel for offshore platforms: AQ43, DQ43, EQ43, FQ43, AQ47, DQ47, EQ47, FQ47, AQ51, DQ51, FQ51, EQ51, AQ56, DQ56, EQ56, FQ56, AQ63, DQ63, EQ63, FQ63, AQ70, DQ70, EQ70, FQ70, 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 .