welded steel pipe,ERW steel pipe,SSAW steel pipe,LSAW steel pipe

Hollow Sections Sizes( square and rectangular tube)

Steel Pipe Lengths

Steel Pipe Size

After completion of welding, pipe roundness and straightness often can not meet the relevant standards and technical requirements, sizing and fixed straightness is used pipe plant, cold bulged by mechanical methods to complete.

Cold forming is without heating the material punching, bending, stretching and other processing methods. Cold forming processes are cold forging, cold rolling, forging and so on.

LSAW STEEL PIPE ( FOB BASIS) CURRENCY USD

ASTM A106 belongs to the American standard, which contains steel grade: Gr.A; Gr.B; Gr.C. ASTM A106 standard specification for seamless carbon steel pipe for high-remperature service.

Spiral steel pipe used as a bridge type of steel pipe welding, production should find the best welding method for it in order to improve the production efficiency of spiral steel pipe.

ASTM material standards are developed by the American Society for Materials and Testing, ASTM material standards can include the chemical, mechanical, physical and electrical properties of the material. These standards include both a description of test methods to be performed on building materials, and the size and shape that these materials are to take. Building materials like concrete can be required by local law to meet ASTM standards before being used in construction. Among ASTM A53 and ASTM A106 are widely used. ​

ASTM A335 / A335M - 11 Standard Specification for Seamless Ferritic Alloy Steel Pipe for High-Temperature Service

For the ASTM standard, different material with different steel grade,besides, their mechanical properties and chemical composition, metallurgical properties are all different.

It is said that China's welded pipe market was aggected by price increasing in early July, and transactions activity slightly improved along with the rising prices. Because of the price increasing which would affect by a number of order.

ASTM International is an organization that publishes documents and develops standards on a wide variety of materials and processes.

tainless steel pipe,stainless pipe,stainless steel seamless pipe

oil pipeline,pipeline,application of pipeline

The specific features of carbon steel pipe and alloy steel pipe is listed below for you reference:

The seamless steel pipe is strictly manufactured according to the GB/t8162-87, cold rolled (cold drawn) pipe outer diameter of 5 ~ 200mm. The wall is 2.5 ~ 12mm thick. The outer diameter of hot rolled pipe is 32 ~ 630mm. Wall thickness 2.5 ~ 75mm.

The seamless steel pipe is strictly manufactured according to the GB/t8162-87, cold rolled (cold drawn) pipe outer diameter of 5 ~ 200mm. The wall is 2.5 ~ 12mm thick. The outer diameter of hot rolled pipe is 32 ~ 630mm. Wall thickness 2.5 ~ 75mm.

GB/T 3091Welded steel pipe for low pressure liquid delivery (2015 standard version) has been approved and released by standardization administration of the People’s Republic of China. The new version put into effect from June 1st, 2016, and meanwhile, the old version of GB/T 3091-2008 became officially invalidated.

"ERW Pipe" is a high-frequency straight seam resistance welding pipe, English Electric Resistance Welding, the abbreviation referred to as ERW, used to transport oil, natural gas and other vapor-liquid objects meet the high and low voltage requirements, currently the world conveying pipe It occupies a pivotal position in the field.