Boilers and pressure vessels are sealed vessels used to hold liquids or gases under pressure.Although theoretically they can be made into any shape, pressure vessels are usually made into spheres, cyl...

Pressure vessels can be of any shape, but in most cases they are made up of cones, cylinders or spheres.The cylinder is still the most common shape, its end cap is referred to as head, and there are a...

Stainless steel refers to steel that is resistant to weak corrosive media such as air, steam, and water, and chemically corrosive media such as acid, alkali, and salt, and is also called stainless aci...

The welding methods of pipes mainly include resistance welding (ERW), l0ngitudinal-seam submerged arc welding (LSAW) and spiral submerged arc welding (SSAW). These methods are described below:
ERW can...

Seamless pipe is made from a round steel billet (solid cylindrical hunk of steel that is cast from raw steel). This billet is then heated, stretched out and pushed or pulled over a form. It is then pi...

Classification of forming technology for large-size seamless pipe fittings
The forming technologies of large-size seamless pipe fittings mainly include: hot spinning, hot extrusion, hot piercing and r...

An orifice flange is used in combination with orifice meters to measure the flow rate of oil, gas and other liquids conveyed by the pipeline. Pairs of pressure tappings are machined onto the orifice f...

Hebei Haihao Group is one of the preferred inconel pipe fittings suppliers which retain strength, toughness and resistance to corrosion in a high temperature environment. These alloy are used across a...

There are two methods for making a fabricated branch connection from the pipe,they are stub-in and stub-on.Both types are allowed by many international codes and standards,such as ASME B31. Because bo...

A universal expansion joint contains two bellows with a connecting pipe or center spool between them. It is usually furnished with limit rods or full thrust tie rods, depending upon the service condit...

Single expansion joints come equipped with bellow elements and end connections like pipe ends, flanges, weld necks and other optional features such as collars, liners, and covers. The bellows will def...

In a piping system a expansion joints alternately known as Bellows are like sealed springs. Sealed because it is required to contain the fluid pressure which is flowing through it and spring because i...

In all kinds of stainless steel pipe processing, polishing is a way of finishing the surface of stainless steel pipes by using flexible polishing tools and abrasive particles or similar media. It can ...

Stainless steel angle bar is a kind of strip steel with vertical angle on both sides. It can be divided into two kinds: equal side stainless steel angle bar and non equal side stainless steel angle ba...

Because the yield point of the stainless steel plate material itself is relatively high, the hardness is also very large, and the effect when performing the cold hardening is very obvious, so when the...

With the development of technology, lined and clad materials are more and more popular in processing industry.By combining the two materials, we can gain the advantage of the two materials at a lower ...

The alloying elements play solid solution strengthening, dispersion strengthening and improving the oxidation resistance and corrosion resistance of steel. The specific analysis is as follows.
1.Carbo...

The formation of hardened structure in the heat-affected zone
The critical cooling rate of P91 is low, the austenite is very stable, and the normal pearlite transformation is not easy to occur during ...