A seamless tube/pipe is a long steel bar with a hollow cross-section and no seams around it.
And seamless pipe can be made into pipe nipples and pipe couplings, used as pipe fittings. At present, there are more than 5,100 production plants under 1850 companies producing seamless pipes in the world, among which there are more than 260 plants under 170 companies producing oil pipes. Do you know its physical properties?
The physical properties are divided into the following points:
1. Domestic seamless pipes supplied according to the performance of the organization, ordinary carbon steels are manufactured according to GB/T700-88 Class A steel (but ensure that the sulfur content does not exceed 0.050% and the phosphorus content does not exceed 0.045%), and its mechanical properties Should comply with the value specified in the table of GB8162-87.
2. The hydraulic test specified in the guaranteed standard for domestic seamless pipes supplied by the hydraulic test.
3. The physical property inspection of the seamless pipe shall be carried out in accordance with the relevant standards specified in the contract.
