heat treatment stainless steel 304 304L 1.4306 pipe

AL6XN is a superaustenitic stainless steel with outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking. AL6XN is a 6 moly alloy that was developed for and is used in highly aggressive environments. It has high nickel (24%), molybdenum (6.3%), nitrogen and chromium contents that give it excellent resistance to chloride stress corrosion cracking, chloride pitting, and exceptional general corrosion resistance. AL6XN is primarily used for its improved pitting and crevice corrosion resistance in chlorides. It is a formable and weldable stainless steel.

316L 1.4401 S31603 Stainless Steel Pipe is a highly versatile and durable pipe option commonly used in a wide range of industrial and commercial applications. This SS UNS S31603 pipe is made from high quality 316L stainless steel with excellent resistance to corrosion, oxidation and staining, making it ideal for harsh environments or high stress applications.

UNS N08367 also commonly referred to as alloy AL6XN is a low carbon, high purity, nitrogen-bearing “super-austenitic” nickel-molybdenum alloy with excellent resistance to chloride pitting and crevice corrosion.

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.

SMO 254 Pipes can withstand high mechanical stress and Alloy 254 SMO Pipe high pressure work in high temperatures and corrosive environments.

The 316 stainless steel pipe has become an indispensable material for the industrial sector. This alloy of iron and chrome is recognized for its high resistance to corrosion, as well as its durability. 316 stainless steel tubing can be produced in both seamless and welded tubes to meet specific customer needs.

ASTM A312 TP316 is a standard specification for seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipes used in high-temperature and general corrosive service applications. The 316 Seamless Industrial Steel Pipe is made from a combination of chromium, nickel, and molybdenum, which gives SS 316 Seamless Tube excellent resistance to corrosion and rust.

ASME B36.19M is the standard specification for stainless steel pipes, which specifies the dimensions, tolerance, and manufacturing requirements for both welded and seamless pipes.

For more severe corrosion conditions, when 304 stainless steel is too sensitive to pitting or crevice corrosion in chlorides or general corrosion in sour applications, 316 stainless steel is often replaced.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.31

ASTM A403 WP304 Fittings are available in different sizes and shapes and have a pressure rating of 3000#, 6000#, and 9000#.

The key elements in 304 are chromium and nickel, which give it excellent corrosion resistance. It has good corrosion resistance, is ductile and ductile, and has good weldability. The austenitic structure allows deep drawing without intermediate annealing.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.41

Alloy 304 is an austenitic alloy, which is made up major constituents of nickel and chromium. The Stainless Steel 304 Pipe/ Tube is designed with high corrosion and oxidation resistance properties.
Type “Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size “OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”

Alloy 254 SMO is a high end, molybdenum and nitrogen alloyed super austenitic stainless steel with low carbon content.

Stainless steel is an alloy of iron that is resistant to rusting. It contains at least 11% chromium and may contain elements such as carbon, other nonmetals and metals to obtain other desired properties. Stainless steel’s resistance to corrosion results from the chromium, which forms a passive film that can protect the material and self-heal in the presence of oxygen.

The lowering of carbon content as well as the addition of nitrogen in the alloy of ASME B16.11 Cl3000 A182 F304L Slip On Flanges, is what brings about the changes in the alloy. Firstly, a low carbon content provides an ease with regards to welding.

Alloy 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The alloy is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. Alloy 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.

Steel flanges provide an easy access for cleaning, inspection or modification. They usually come in round shapes but they can also come in square and rectangular forms. The flanges are joined to each other by bolting and joined to the piping system by welding or threading and are designed to the specific pressure ratings; 150lb, 300lb, 400lb, 600lb, 900lb, 1500lb and 2500lb.

A flange can be a plate for covering or closing the end of a pipe. This is called a blind flange. Thus, flanges are considered to be internal components which are used to support mechanical parts.

Stainless Steel 316 has excellent forming and welding characteristics.

Annealing is a heat treatment process mainly used to increase the ductility and reduce the hardness of the material. This change in hardness and ductility is the result of the reduction of dislocations in the crystal structure of the annealed material. Annealing is usually done after the material has undergone a hardening or cold working process to prevent its brittle failure or to make it easier to handle later.

It is common practice for 304L to be dual certified as 304 and 304L. The low carbon chemistry of 304L combined with an addition of nitrogen enables 304L to meet the mechanical properties of 304.

The flange is second most used joining method after selding. Flanges are used when joints need dismantling. It provides flexibility for maintenance. Flange connects the pipe with various equipment and valves. Breakup flanges are added in the pipeline system if regular maintenance in required during plant operation.
A flanged joint is composed of three separate and independent although interrdlated components; the flanges, the gaskets, and the bolting; which are assembled by yet another influence, the fitter. Special controls are required in the selection and application of all there elements to attain a joint, which has acceptable leak tightness.
A flange is a protruded ridge, lip or rim, either external or internal, that serves to increase strength (as the flange of an iron beam such as an I-beam or a T-beam); for easy attachment/transfer of contact force with another object (as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera); or for stabilizing and guiding the movements of a machine or its parts (as the inside flange of a rail car or tram wheel, which keep the wheels from running off the rails). The term “flange” is also used for a kind of tool used to form flanges.

Stainless steel is an alloy of iron that is resistant to rusting. It contains at least 11% chromium and may contain elements such as carbon, other nonmetals and metals to obtain other desired properties. Stainless steel’s resistance to corrosion results from the chromium, which forms a passive film that can protect the material and self-heal in the presence of oxygen.
A stainless steel pipe system is the product of choice for carrying corrosive or sanitary fluids, slurries and gases, particularly where high pressures, high temperatures or corrosive environments are involved. As a result of the aesthetic properties of stainless steel, pipe is often use in architectural applications.

The increased nickel content and the inclusion of molybdenum makes grade 316 stainless steel a bit costlier than grade 304 per ounce of material. But where grade 316 stainless proves superior is its increased corrosion resistance¡ªparticularly against chlorides and chlorinated solutions. This makes grade 316 stainless particularly desirable for applications where exposure to salt or other powerful corrosives is an issue.
Type “Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size “OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”

El tubo SMO 254 esta altamente aleado y tiene una resistencia a la corrosion comparable a los aceros austeniticos de alto rendimiento. La tuberia sin costura SMO 254 no se corroe, oxida ni se moja como el acero normal.

Stainless steel types 304 or 304L are also known as 18/8 stainless steels because their chemical composition includes approximately 18% chromium and 8% nickel by weight. They are widely used in the food and beverage processing industry because of their ease of forming and welding and their strong corrosion resistance. Types 304 and 304L have very similar chemical and mechanical properties. The only difference between them is the carbon content; 304 stainless steel has a maximum carbon content range of 0.08%, while 304L has a maximum carbon content range of 0.03%.
Type “Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size “OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”

Grade 316 is also primarily composed of iron, and again contains significant amounts of nickel and chromium¡ª10-14% and 16-18%, respectively¡ªand small amounts of carbon, manganese, molybdenum, and silicon. For this reason, grade 316 stainless steel is often preferred for use in marine environments.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.67

Stainless Steel 304 weld neck flanges
Sometimes called a blanking flange; use to blank off pipelines, valves, and pumps, or as an inspection cover. Suitable for use with Schedule 40 or 80 stainless steel pipe, in applications with air, water, natural gas, and steam.

A flange is a ring of steel (forged, cut from plate, or rolled) designed to connect sections of pipe, or to join pipe to a pressure vessel, valve, pump or other integral flanged assembly. Flanges are joined to each other by bolts, and to the piping system by welding or threading (or loose when stub ends are used). Stainless steel flange simplified as SS flange, it refers to the flanges that made of stainless steel. Common material standards and Grades are ASTM A182 Grade F304/L and F316/L, with pressure ratings from Class 150, 300, 600 etc and to 2500. It used in more industries than carbon steel as stainless steel has better resistant performances on corrosion environment and always provides with a good appearance.

Molybdenum and nitrogen content significantly increased the resistance of pitting and crevice corrosion in the halide media. Meantime, nickel and nitrogen not only ensures the stability of metallographical, but also reduce separating intergranular trend in the thermal process or welding process better than the nitrogen content of nickel alloy.

Stainless steel, thanks to its passive chromium oxide coating, does not react with other substances. Thanks to this, it can be freely used in contact with food. Strict HACCP standards require the use of stainless steel in contact with food. All because steel is non-toxic and easy to keep clean. Stainless steel elements can be cleaned with most common detergents and we do not have to worry that the steel surfaces will lose their properties or change their appearance.

254 SMO (1.4547) fasteners are made from a high-end stainless steel alloy developed for resistance to salt water and chloride corrosion. This 6-Moly (6% molybdenum) alloy has good localized corrosion resistance, and 254 SMO provides much higher strength than other austenitic stainless steels.

The carbon content of 304L (UNS 30403) is limited to a maximum of 0.03% to prevent sensitization during welding.

The high molybdenum content of 254SMO stainless steel makes it have a higher oxidation rate when annealed, resulting in a rougher surface after pickling than ordinary stainless steel. However, this has no adverse effect on the corrosion resistance of the steel.

HT PIPE is a leading manufacturer of these flanges in large scales. There are different classes such as the Class 150 SS 309S Flanges which denote one of the low pressure classes.

?Stainless steel pipes are manufactured according to ASTM A312 standard. The material is available in grade SS316/316L and made in standard length of 6 meters long. Dual grade SS316/316L stainless steel pipes are known to deliver exceptional performance and are generally developed for meeting the market demands.
Type “Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size “OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”

Basically, using 304L eliminates the need to anneal welded joints before using the full metal form, saving time and effort. In fact, both 304 and 304L can be used for many of the same applications. The differences are usually so small that one is not considered more useful than the other. When greater corrosion resistance is required, other alloys, such as grade 316 stainless steel, are often considered as an alternative.
Type Seamless Pipe
Seamless Tube
Welded Pipe
Welded Tube
SAW LSAW ERW EFW
Beveled End, Plain End”
Size OD: 1/2″” ~48″”
Thickness: SCH5~SCHXXS
Length :As per your requirement.”
Manufacturing technique Hot rolling /Hot work ,Cold rolling
Producing Standard ASME B36.10 ASME B36.37

ASTM A213 / A269 standard specification is applied for seamless stainless steel tubing, ASTM A249 / A269 for welded tube, with both bright annealing finish and annealing pickling finish, generally, seamless coil tubing can be provided in no risk of impurities that are often associated with welding tube, seamless tubing is the preferred option for critical applications.

AISI 904L threaded rods are further reduced to required lengths and chamfered as stud threaded rods when required to hold components such as flanges, valves, filters and other plumbing components together. Also, SS 904L threaded rod is a recommended austenitic alloy for functions where SS 316l or SS 317l cannot provide basic corrosion resistance.