Seamless steel pipe pressure

Composed piece of seamless steel pressure pipes are generally standard, so the pressure piping components are primarily designed selection, pipeline pressure levels to determine their standard of its standard level is determined.

Pipe pressure rating: usually determined by a common pipe fittings standard nominal pressure rating and wall thickness of the pipe pressure rating that can reflects the parameters characteristic called pipe pressure rating. The customary to simplify the description, often to the pipe fittings nominal level called pipeline pressure rating. Pressure levels to determine the basis for the design pressure of the pipeline, but also the core design. It is the pressure piping, pressure piping design stress check preconditions pressure pipeline is an important factor in investment in infrastructure and pipeline reliability impact.

Different materials, the mechanical properties are different, the temperatures are in the standard - the corresponding value on the pressure gauge is not the same. Therefore, before determining nominal pipe material pipeline should first determine its components. It is determined by the choice of material design temperature, design and operation of the pressure medium. With forging material, while valve multi-cast material. No matter what material standard used, they should be the same level of material that has the same operating conditions, such as strength and adaptability; note pipe, plate, bar, cast material compatibility.

Allowable stress of the material refers to the material strength index value divided by the appropriate factor of safety obtained. Mechanical performance materials are yield limit, ultimate strength, creep limit, fatigue limit, these indicators reflect different states were failures limit. To ensure reliable operation of the pipe strength, the pipe element is often restricted to a value of stress at each intensity index, the value is the allowable stress. When the pipe element stress exceeds the allowable stress values, it believes its strength can not be guaranteed. So, to say, material allowable stress level is to determine the basic parameters of the pipe wall thickness.

Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.


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