Material Parameter
◪ 1.All the steel pipes used are high-frequency welded pipes, and all the components are made of Q235, which conforms to GB700-8. |
◪2.The tube-to-tube connection and the connection between the tube and the connector may use a butt weld or a full circumferential fillet weld. |
◪ 3.All butt-welded joints shall be welded through a cut-out, and such welds shall not be specifically graded as Class III. |
◪ 4.The non-injected girth welds are fillet welds with a weld foot of not less than 4mm and all exposed seams have a sealing plate. |
◪ 5.Special said bolts are galvanized ordinary large hex head bolts, in line with GB5780-86; nuts in line with GB41-86. Manual welding using E43X electrode. |
◪ 6.The membrane fabric is made of PVC membrane material (PVDF coating on the surface). The material of the steel wire rope conforms to the universal wire rope standard "GB/T8918-1996". This project is a ramie wire rope with a nominal tensile strength of 1570 MPa and the surface is galvanized. |
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