1. DH36 ship square tube is a high-strength ship square tube. Shipbuilding steel generally refers to the steel used for ship hull structure.
2. DH36 uses an electric furnace to make steel. It is made from scrap iron. The steel is pure. The square tube is a flat steel material that is poured with molten steel and pressed after cooling. It is flat and rectangular, and can be directly rolled or cut from wide steel strips. Square tubes are divided by thickness, thin square tubes <8 mm (the thinnest is 0.2 mm), medium-thick square tubes 8~60 mm, and extra-thick square tubes 60~120 mm.
3. DH36 square tube grade indication:
“D”: Indicates that the square tube is of quality grade D;
“H”: It is a high-grade building material;
“36”: Better compression resistance, Z is Z-direction stretch.
4. DH36 square tube implementation standard: implement GB/T712–88 standard
5. Delivery status of DH36 square pipe: The delivery status of square pipe is normalized. The delivery status can also be adjusted according to technical requirements.
6. DH36 square tube thickness direction performance requirements: Z15, Z25, Z35.
