Chinese wholesale Carbon Steel Pipe Price List - Best Selling Seamless Stainless Steel Pipe Metal Pipe – JINBAICHENG

Structural components

1.1 The chemical composition of domestic seamless pipes supplied by chemical composition and mechanical properties, such as 10, 15, 20, 25, 30, 35, 40, 45 and 50 gauge steel should conform to the provisions of GB/T699-88. Imported seamless pipes are tested according to the relevant standards specified in the contract. 09MnV, 16Mn, 15MnV steel chemical composition should be in accordance with the provisions of GB1591-79.

1.2 specific analysis methods refer to GB223-84 “Steel and alloy chemical analysis methods” of the relevant part.

1.3 analysis deviation with reference to GB222-84 “chemical analysis of steel with specimens and finished chemical composition allowable deviation”.

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Physical properties

1.1 according to the institutional performance of the supply of domestic seamless pipe, ordinary carbon steel according to GB/T700-88 A steel manufacturing (but must ensure that the sulfur content does not exceed 0.050% and phosphorus content does not exceed 0.045%), its mechanical properties should be consistent with the values specified in the table GB8162-87.

1.2 The domestic seamless pipes supplied according to the hydraulic test must ensure the hydraulic test as stipulated in the standard.

1.3 The physical property inspection of imported seamless pipes shall be carried out according to the relevant standards specified in the contract.

Typical use

1.1 Seamless pipe is widely used. General purpose seamless pipe is rolled from ordinary carbon structural steel, low alloy structural steel or alloy structural steel, the most production, mainly used as a pipeline or structural parts for the transport of fluids.

1.2 according to the use of different types of supply: a, according to the chemical composition and mechanical properties of supply; b, according to the mechanical properties of supply; c, according to the hydraulic test supply. Steel pipes supplied according to category a and b are also subjected to hydrotesting if they are used to withstand liquid pressure.

1.3 Specialized purpose seamless tubes include seamless tubes for boilers, seamless tubes for geology and seamless tubes for petroleum, and many others.

Main Products and Technical parameters