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Introduction to Black Steel Pipe
Black steel pipe is a non-galvanized steel pipe. Black steel pipe is used in applications that do not require the pipe to be galvanized. This non galvanized black steel pipe acquired its name because of its dark coloured iron oxide coating on its surface. Because of the strength of black steel pi...Read more -
Application of square seamless steel pipe
In a large number of industries, square steel pipes are used. The production of this kind of pipes is increasing day by day. With compare to round steel pipes, square steel pipes are little more efficient. The reason is that the square column is more efficient than the solid circular column. In a...Read more -
How to make steel tubes
Crossed, lower materials and beveling Steel construction drawings based crossed and consider cutting losses, welding shrinkage and other factors. After marking with a stamp, paint, pipe segments were marked, section number, flow direction, horizontal and vertical centerline, bevel angle and cutti...Read more -
High-frequency welding technology of hot-rolled seamless steel pipe
Small diameter steel pipe is mainly used in oil, natural gas pipeline. The small diameter steel pipe has one side welding and welding by both sides, welded pipe shall ensure that the water pressure test, the tensile strength and cold bending properties of the weld in accordance with regulations. ...Read more -
American Steel Product Standards
US steel products are with more standards, mainly in the following categories: ANSI–American National Standard AISI–American Society of Iron and Steel Standards ASTM–American Society for Testing and Materials ASME–American Society of Mechanical Engineers AMS–Aerospac...Read more -
American 337 lack of interest termination for China, China’s steel victory is in sight
In 2017, China’s ministry of commerce website news, a motion according to the American iron and steel company, the United States international trade commission (ITC) administrative law judge released preliminary (56 order), termination of the carbon steel and alloy steel 337 investigation a...Read more