Alloy steel pipe

fsapexsteel is a merchant exporter and supplier of alloy steel pipes and alloy steel tubes used for many different purposes. More >>

Weldable components

Below are our available Weldable components that will meet your project needs. We will help you put together your entire project and ship it to your closest port. More >>

Flanges General

A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. More >>

Seamless steel pipes

We can makes and markets cold-drawn and hot rolled seamless steel pipes and cold-drawn special-section seamless pipes which are widely applied in the industries of More >>

Stainless Pipes and tubes

Stainless Pipes are made from more than 20 steel grades of various corrosion resistance and are intended for application in conditions of a wide range of corrosion environments and temperatures in heat exchanger. More >>

Contact Us

HYSP QCCO China Steel provide a wide range of steel products as Steel pipes, Seamless tube and seamless pipes, Alloy pipes, Pipe fittings, Composite steel pipe used in the industry, construction etc. More >>


Tag Archives: piping system

ASME Piping Standards

ASME Piping

The American Society of Mechanical Engineers (ASME) has a series of standards providing information on the uses[......]

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Weld Neck Raised Face (WNRF) Flange.


The weld neck flange derives its name from the neck portion of the flange that is welded to the end of a piping system. [......]

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The Types of Pipe Flanges

Reducing Flanges

Pipe flanges connect pipes, valves, pumps and other equipment in a piping system. Flanges are usually welded or screwed into the systems and then joined with bolts. The eight types of pipe flanges are available in round, square and rectangular shapes.[......]

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Slip-on Flange Problems


A flange is a plate-like device used to construct a piping system; it connects pipes, pumps, valves, and other gadgets. [......]

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Flange Types

ASTM A350 LF2 flange

There are seven standard types of flanges used for connecting pipes, valves, pumps and other parts of a pipe system[......]

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How to Calculate for Flange Forces

Flange Marking

A flange is a small plate or ring used to connect two sections of pipe together. As a flange may connect pipes that have very different physical properties[......]

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Pressure Classes of Flanges


Flanges can withstand different pressures at different temperatures. As temperature increases, the pressure rating of the flange decreases. [......]

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