304L pipes with flanges butt weld tee and elbows

304 Piping Spools are made of 304 Stainless Steel, a common and popular material in many industrial applications that require resistance to corrosion and oxidation. These S30400 Piping Spools are prefabricated using specialized machinery and processes, which ensure that they are highly accurate and reliable.

Alloy 625 has excellent fatigue strength and stress corrosion cracking resistance to chloride ions. This nickel alloy has excellent weldability and is often used to weld AL-6XN. This alloy is resistant to a variety of severe corrosive environments, especially pitting and crevice corrosion.

Pipe Spools are fabricated from a number of raw pipes and pipe fittings (e.g. elbows, flanges, tees, etc.) in fabrication shops.

The specification of the flange types is done via the ASME B16.5 standards. Thus flanges are classified as; weld neck, slip-on, socket weld, lap-joint, threaded blind. The weld necked flanges are easy to recognize. A cylindrical bulge with a gradually increasing radius is connected to the main hollow part.

Built-up sections are produced at the factory and is then transported to the original site and assembled. This concept is generally used to build Metro stations, industrial units, warehouses, etc.

In nuclear reactors uses are for such components as control rod inlet stub tubes, reactor vessel components and seals, steam dryers and d separators in boiling water reactors.

Reworking of Alloy K-500 is best done while the material is in the annealed or hot worked and quenched condition. However, age hardened materials can be finished to close tolerances and finish. Therefore, the recommended practice is to machine slightly oversize, age harden, and then finish to size.

This nickel alloy exhibits characteristics like good corrosion resistance, good weldability and high strength.

Inconel 718 is a nickel-based superalloy ideal for applications requiring high strength in the temperature range from cryogenic to 1400¡ãF. Inconel 718 also has excellent tensile and impact strength.

However, their fatigue strength is higher than the slip-on flanges. A major problem of the socket weld flanges is the corrosion risk. A gap between the flange and fitting or pipe must be maintained before the welding. Corrosive fluids or humidity can locate in these shelters. Thus, this solid-liquid interface may cause corrosion on the body.

HASTELLOY C276 is a Nickel-chromium-molybdenum wrought alloy that is considered the most versatile corrosion resistant alloy available.

Roller hearths and radiant tubes, in carbon nitriding processes especially.

Pipe spool fabrication is very important because the construction of the ship and other marine industries require intensive piping. Pipe spools create great advantages because they reduce the limitations of space on site.

Thus, the pipeline system must be designed and produced in a way that can handle the induced stresses during the transportation of liquid or gaseous substances. Some facilities (power plants, petroleum refineries, etc.) require long and complicated pipeline systems. Moreover, these types of facilities handle problems because of the limited working space.

Alloy X is known for its excellent high temperature strength and can withstand temperatures up to 2200¡ãF. The alloy can also be easily fabricated by manual and automated methods with forming and welding properties. In addition, Hastelloy X is resistant to corrosion, heat and oxidation and can withstand reducing or neutral atmospheres and oxidation.

Little or no attack occurs at room and elevated temperatures in dry gases, such as chlorine or hydrogen chloride. At temperatures up to 550C in these media, this alloy has been shown to be one of the most resistant of the common alloys.

At elevated temperatures the annealed and solution annealed alloy shows good resistance to scaling and has high strength.

The strength of this nickel steel alloy is maintained to 1200¡ã F but stays ductile and tough down to temperatures of 400¡ã F. Its melting range is 2400-2460¡ã F.

Alloy K500 is refined by Electro Slag Refining (ESR), ensuring the cleanest and highest quality of material is supplied.

These have the advantage of nickel and molybdenum providing resistance against the most reducing environments. The oxidation resistance is also high in these materials due to the addition of the chromium content.

Alloy 400/Monel 400 comes directly from refined ore bodies in Canada, and with a copper content of approximately 30 wt%, it provides a lower cost alternative to commercially pure nickel, but still retains a very similar characteristics.

The sluggish age-hardening response of alloy 718 permits annealing and welding without spontaneous hardening during heating and cooling.

The corrosion resistance of Monel K-500 is basically the same as Alloy 400, except that in the age hardened condition, Alloy K-500 has a greater tendency to stress corrosion cracking in certain environments. Monel K-500 has been found to be resistant to sour gas environments.

Process equipment used in the production of chlorinated and fluorinated hydrocarbons.

As a corrosion resistant alloy, Monel 400 can withstand high temperature steam environments and fast flowing brackish/seawater, while maintaining excellent resistance to stress corrosion cracking in most fresh waters.

Steel Pipe Spools are also referred as prefabricated components of a piping system such as pipes, flanges and pipe fittings, and they are mounted during the development before sending them to the manufacture.

C276 is forged between 2250/1750oF (1230/955oC) and then soaked at the forging temperature for 30 minutes per inch of billet or ingot section thickness. Forging should begin immediately, the billet is removed from the reheat furnace, a 25/40% reduction helps retain as much internal heat as possible. For optimum corrosion resistance, forged parts should be subsequently annealed. See Heat Treatment.

MONEL K500 is a age-hardenable Nickel-Copper alloy which combines the corrosion resistance of Alloy 400 with high strength corrosion fatigue and erosion resistance.

Customized Prefabrication Pipe Spools

Pipe welded with Flanges

Pipe welded with Fittings

Flanges welded with Fittings

HASTELLOY C276 is not prone to grain boundary precipitation in the as welded condition and therefore suitable for many chemical process applications.

Superalloys have good oxidation and creep resistance and can be strengthened by methods such as precipitation hardening, solution hardening and work hardening. They can also function under high mechanical stress and high temperature and where high surface stability is required.