Detailed introduction of the reducer

Pipe reducer for connection between pipes of two different pipe diameters. According to the shape, it is divided into two types: concentric small head and eccentric reducer. The different diameter pipe material includes stainless steel reducer (alloy steel, carbon steel reducer). The calculation method of the expansion arc length of the different diameter reducer: Concentric reducers, […]

Chemical composition and heat treatment of duplex stainless steel

Duplex stainless steels require good overall mechanical properties. These properties are achieved by the selection of steel with the appropriate composition and by heat treatment by quenching and high temperature tempering. In the quenched and tempered state, the dual-phase steel has low carbon content, high plasticity and toughness, but low strength; the high carbon content is […]

What is a rolled flange?

What is a rolled flange? The rolled flange is cut into slats by the middle plate, and then rolled into a round welded joint and then processed by a flattening process. The coil is made up of cold and hot coils. After processing into a circle, the water line, bolt holes, and stops are processed. This is […]

High pressure butt-welded flanges

High-pressure butt-welded flanges are suitable for pipelines with high pressure or temperature fluctuations or for high-temperature, high-pressure and low-temperature pipelines, as well as for pipelines that are expensive, flammable, and explosive. The high-pressure butt-welding flange is not easy to be deformed, has good sealing and is widely used. The nominal pressure PN is about 16 MPa. […]

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