Guangzhou Steel tells you: construction steel materials site acceptance requirements
Steel use steel, welding materials, coating materials and fasteners should have quality certificate, must meet the design requirements and existing standards. Raw materials approach, in addition must have a manufacturer's quality certificate outside, and should be in accordance with contract requirements and the existing provisions under the witness of the Party, supervision, on-site witness sampling, sample, test and inspection, carry out inspection record. To provide inspection reports and supervision of the Party.
Steel surface must not have scars, cracks, folding and delamination defects; steel end side or the fracture should not have layers, slag. These defects should be piled separately, in order to study treatment. Corrosion depth of the steel surface, the thickness does not exceed 1/2 of the negative deviation value; and shall conform to the national standards for Class C and above. Prohibit the use of drugs exfoliation or electrode welding core rusty, damp agglomeration or melt the solder and burnt rusty wire.
Steel engineering alternative materials. Because individual steel varieties, specifications, performance and other requirements can not meet the need for information on the Guangzhou Steel alternative design, and design units to be agreed by the Department of Alternative A file, usually in high-strength materials instead of the low strength materials to thick-generation thin. High strength bolts should be torque coefficient retest. Guangzhou Steel
QR code of public account
