The complexities of the chemical and mechanical properties of some grades of carbon steel allow us to provide you with a wide range of applications, depending on the type of pipe selected.
We are experienced in the subject and we know perfectly the type of material that you may need according to your application needs, we are sure that the correct grade, sizes, quality control and price will meet your needs and expectations.
Here is some of that experience:
- ASTM A106 Gr.B or Gr. C pipes (equivalent to ASME SA-106) Seamless are applied in services ranging from structural to gas pipelines, as well as steam piping in boilers domes or simply process piping of the industry in general, managing to withstand temperature ranges close to 425 ° C.
- API 5L Gr. X-42 to X-70 pipes, used in the Oil & Gas Industry (mainly Upstream / Off-Shore) and the Water Industry for long-distance transport of its fluids.
Stainless Steel is one of the most versatile materials. It is an Iron Alloy that contains a minimum of 10.5% Chromium (Cr). Alloys such as Nickel (Ni), Molybdenum (Mo), Titanium (Ti), Carbon (C), Nitrogen (N), and Copper (Cu), can improve the strength, geometry, and other properties of Stainless Steel.
Different types of alloys (Specification and Grade) offer different types of resistance to corrosion, some of them offer greater strength at very low temperatures (reaching cryogenic) providing a greater range of working hardness, increasing strength and hardness, great ductility and a more attractive appearance compared to Carbon Steel. Some examples:
- Stainless Steel ASTM A312 pipes in Gr. TP304, TP304L, TP316, TP316L, TP317, TP317L, TP321, TP904L, UNS S32205 / UNS S31803 (Duplex) (also called AISI class 304, 304L, 316, 316L, etc., or their equivalents in ASME SA-312), Welded or Seamless are used in applications where resistance to temperature and high resistance to corrosion are critical, including the fact that Stainless Steel is easy to clean without losing its appearance.
Pipe fittings are the main elements to join and design the piping of any project, being a new pipeline, a repairing or replacement of an existing one, or welding a nozzle to a pressure vessel, manifold , etc.
It is also important to consider the specification and grade when selecting the fitting that is compatible with the joint material, that is why we have the experience and knowledge to help you choose the right one.
Some of the most common specifications and grades are:
- Wrought Carbon Steel or Alloy Steel Fittings ASTM A234 Gr. WPB, in sizes from Ø1/2" to Ø72". (equivalent to ASME SA-234), also in Alloy Steel in Gr. WP5, WP9, WP11, WP12, WP22, WP91.
- Wrought Stainless Steel or Duplex Fittings ASTM A403 Gr. WP304, WP304L, WP316, WP316L, WP304, WP304L, WP304H, WP321, WP321H, WP316, WP316L, WP316H, WP347, WP347H, WP309, WP309S, WP310, WP310S, UNS S31803, UNS S32205 (Duplex), Welded or Seamless. (equivalent to ASME SA-403).
- Forged Carbon Steel Fittings ASTM A105 or ASTM A181 Gr. 1 or 2 (equivalent to ASME SA-105 or SA-181).
- Forged Stainless Steel Fittings ASTM A182 Gr. F304, F304L, F316, F316L, F321, F321H, F347, F347H, F309S, F310S also Alloy Steel in Gr. F5, F9, F11, F12, F22, F91 (equivalent to ASME SA-182).
Flanges are another important element for joining pipelines and there are several types, there are with Butt Welding Neck (WN), Sliding type (SO = SLIP ON), Socketing type (SW = Socket Welding), lapping type with a curved radius at the bore and face to house a lap joint stub-end (LP), Threaded (THRD), Blind (BL), Orifice (OF) and elements between flanges such as orifice plates or blind (Spectacle Blind).
It should also be considered that the tightness of a flanged joint is ensured by adjusting the bolts or studs with nuts, but even more importantly the means of joint which are the so-called Gaskets, which can be Spiral Wound Gaskets, made of Compressed Fiber o Teflon, Graphite, Metallic Ring (Ring Joint), among other materials, that is to say, depending on the gasket, the flange will have a first classification considering the type of seat face according to the gasket to be used, like for example Raised Face (RF), with Flat Face (FF), with housing for metal Ring Type Joint (RTJ).
The second classification for Flanges will be the CLASS or SERIES (symbolized with #) that involves the pressure ratings and temperature ranges, being these classes 150, 300, 400, 600, 900, 1500 and 2500. A third classification for Flanges belongs to its standard or specification that defines their dimensions, for example the ANSI / ASME B16.5 specifications for sizes from 1/2" to 24" and ANSI / ASME B16.47 for sizes from 26" to 60", or American Military Standards MSS SP, or European DIN or EN Standards which defines nominal diameters with DN designation:
An example of a Flange designation could be:
Flange ASTM A105 ANSI / ASME B16.5 WN RF #150, NPS 2 SCH XS
Some of the most common specifications we handle are:
- Carbon Steel Forged Flanges ASTM A105 (or equivalent to ASME SA-105) for pressure and high temperature services that are used in pipelines for example matching ASTM A106 Gr.B piping, or as nozzle of Pressure Vessels, among others.
- Stainless Steel Forged Flanges ASTM A182 Gr. F304, F304L, F316, F316L, F321, F321H, F347, F347H, F309S, F310S also Alloy Steel Forged Flanges in Gr. F5, F9, F11, F12, F22, F91 (or equivalent to ASME SA-182).
The tubes for heat exchanger unlike the pipes have a standard of sizes according to the design and construction specifications such as the TEMA or ASME VIII. This means that the diameters of a tube for Heat Exchanger have sizes in exact inches or their direct conversion to millimeters. A clear example would be: 3/4" tube diameter or its equivalent 19.05 mm is quite different from a pipe that uses the nominal size of the pipe which is dimensioned according to the ANSI / ASME B36.10 standard, called Nominal Pipe Size and abbreviated with the initials NPS, therefore a 3/4" pipe diameter (called NPS 3/4) is really an external pipe diameter of 1.05" or its equivalent 26.7 mm, this way is clear the difference between a tube and a pipe.
The tubes are chosen for heat exchangers because due to their diameter, thickness, chemical and physical properties, they have excellent thermal conduction capabilities, which is their main application for thermal exchange.
Some of the most used tubes in the industries are:
- Carbon Steel Tube ASTM A179 (equivalent to ASME SA-179) seamless (SMLS) from Ø1/2" (12.7 mm) to Ø3" (76.2 mm).
- Stainless Steel Tube ASTM A213 Gr. TP304, TP304L, TP316, TP316L, TP304, TP304L, TP304H, TP321, TP321H, TP316, TP316L, TP316H, TP347, TP347H, TP309, TP309S, TP310, UNS S31803, UNS S32205, Welded or Seamless. (Equivalent to ASME SA-213).
- Alloy Steel Tube ASTM A213 Gr. TP5, TP9, TP11, TP12, TP22, TP91, Welded or Seamless. (Equivalent to ASME SA-213).
- Admiralty Brass (Admiralty) or Non-Ferrous Copper-Nickel Alloy Tube ASTM B111 Gr. C44300 (Admiralty Brass), C71500 (Copper-Nickel 30%), C70600 (Copper-Nickel 10%), C12200 (Deoxidized Copper with Phosphorus - DHP), C68700 (Brass-Aluminum).
Elliptical tubes are used in the manufacture or repairing of the so-called Bean Heaters for some industries and to other as Vertical Seed Conditioners or Seed Conditioner per se.
The elliptical tubes are manufactured for different dimensions and technoly design, this is possible varying their major and minor diameters (OD or Ø major and minor) of the Ellipse given by the manufacturer's design.
These tubes start its forming from an ASTM A312 pipe in Gr. TP304 / 304L or TP316 / 316L and are drawn forming an elliptical tube.
The tubes can also be requested by customer welded or seamless, but we always recommend to choose the seamless alternative due to a welding to join a pipe which is going to be transformed plastically is still a different material bond than the solidity of an uniform seamless material.
Some of the most common sizes that the market uses:
- Stainless Steel Elliptical Tube ASTM A312 Gr. TP304L or TP316L (this last for greater resistance to corrosion), ØM 73.5 mm x Øm 32.7 mm x Thickness 3.05 mm in approx. lengths of 3,340 mm.
- Stainless Steel Elliptical Tube ASTM A312 Gr. TP304L or TP316L (for greater resistance to corrosion), ØM 79 mm x Øm 33.3 mm x Thickness 3.05 mm in approx. lengths of 3,340 mm.
- Stainless Steel Elliptical Tube ASTM A312 Gr. TP304L or TP316L (for greater resistance to corrosion), ØM 80 mm x Øm 34 mm x Thickness 2.50 mm in approx. lengths of 3,370 mm.