Introduction To The Invention Of Seamless Steel Tubes

Find here details of P11 Seamless Steel Pipe on our website. Today we would like to talk about introduction to the invention of seamless steel tubes.

The use of seamless steel tubes began when an inventor in Scotland in 1815 connected the barrels for the use of gas for lighting. In 1836, the United Kingdom had a patent for extrusion, but it was not until 1885 that the Manmesmann brothers invented the process of producing seamless steel tubes directly from bar steel.

On February 24, 2010, the US Department of Commerce announced a preliminary ruling that imposed a countervailing duty ranging from 11.06% to 12.97% on seamless steel pipes imported from China. The US Commerce Department said in a statement that from 2006 to 2008, the US imported seamless steel pipes from China increased by 131.52%, and the amount increased to approximately 382 million US dollars.

In October 2011, the US Department of Commerce filed a countervailing case at the request of U.S. Steel, V&M Star, TMK IPSCO, and the U.S. Steel Workers’ Federation. At that time, officials of the Ministry of Commerce of China had said that they blindly accused of dumping or subsidies on imported products from China and lacked factual basis. China firmly opposed this.

As a ASTM A333 Seamless Steel Pipe Manufacturer, we know that at the beginning of November 2011, the US International Trade Commission had made a preliminary decision on this. The schedule shows that the US Department of Commerce will make a final ruling in May 2011, and the US International Trade Commission will make a final ruling in June.

Affected by the financial crisis and economic recession, the United States has frequently used trade remedy measures since 2009.

A new research report by Chad Brown, a senior economist at the World Bank responsible for international trade research, told Xinhua News Agency that in 2009, the number of trade restrictions on countervailing, anti-dumping and special safeguards implemented worldwide increased from 2008. 29.5%. Trade protectionist measures have become an important hidden danger affecting the recovery of the world economy.

Seamless steel tubes have hollow sections and are used in large quantities as pipes for transporting fluids, such as pipes for transporting petroleum, natural gas, gas, water and certain solid materials. It is an economical section steel that is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolding used in construction. It is used to manufacture ring-shaped parts with steel pipes, which can improve material utilization and simplify. Manufacturing processes, material saving and processing man-hours, such as rolling bearing rings, jack sleeves, etc., have been widely used in steel pipes. Shandong Liaocheng is known as the “Sea of Seamless Steel Pipes”. For example, Liaocheng Xinpengyuan Seamless Steel Tube Plant produces large-diameter seamless steel pipes. The standing resource materials are: 10#, 20#, 35#, 45#, 16Mn, 27SiMn, 40Cr, 12Cr1MoV, 10CrMo910, 15CrMo, 35CrMo, 45Mn2, and the like.