Stainless Steel Pipe Fitting 316L Elbows corrosion within the weld

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.

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

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.

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.

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.

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.

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.

Stainless Steel 316 Flanges are made up of an austenitic stainless steel that has chromium, nickel and molybdenum in the content. The 4% molybdenum addition to the composition makes a difference in the mechanical properties as well as physical properties.

The material composition of Stainless Steel 304 Buttweld Fittings includes carbon, manganese, silicon, phosphorus, sulfur and nitrogen in addition to the chromium and nickel basement.

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

SS 347H Blind Flanges
Featuring 347H stainless steel for very good corrosion resistance, this GRAINGER APPROVED weld neck flange can be attached to a system via a circumferential weld at the neck. The welded area can be easily examined by radiography. Matched pipe and flange bore reduces turbulence and erosion inside the pipeline. Flange is excellent for use in your critical applications and is ideal for use with air, water, oil, natural gas, and steam.

316 stainless steel has a similar chemical composition to 304, but also contains molybdenum. This addition makes it more resistant to corrosion. Like 304, the 316 formulation does not require post weld annealing. 316L stainless steel is almost the same as 316. The only difference is the carbon content. The low carbon content of 316L imparts better corrosion resistance than 316. 316L does not require post weld 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 B36.74

ASME SA 182 AS Forged Pipe Flanges are forged from a single piece of raw material for good strength. Some applications need to end pipes instead of connecting more pipes. A182 Alloy Steel Blind Flanges are used for permanent or temporary closure of pipelines. Flanges can be welded or bolted.

Grade 1.4404 or 316L is an austenitic stainless steel AISI 316 with very good corrosion resistance due to its high chromium and molybdenum content and low carbon content. Its strength in the hardened state is about 600 MPa for large diameters, but for small sections, the strength can be increased by cold working.

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.

304L stainless steel construction. It is composed of chromium-nickel material and has very good corrosion resistance. Couplings are suitable for unthreaded pipes in air, water, oil and gas applications.

Another industry that uses this alloy is the food and beverage industry, which uses acetic acid as a preservative. Acetic acid is an organic acid that is corrosive to carbon steel.

Since Type 316 stainless steel alloy contains molybdenum bearings, it has higher chemical resistance than Type 304. Model 316 is durable, easy to manufacture, clean, weld and polish.
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 B36.45

Greater strength and corrosion resistance still mandate the use of seamless stainless steel and nickel alloy tubing for high pressure applications within the oil and gas, petrochemical, chemical, energy, and pulp and paper industries.
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 B36.20

Incoloy 925 flange is often used for down-hole and surface gas-well because of their excellent resistance to sulfide stress cracking and stress-corrosion cracking in ¡°sour¡± (H2S containing) crude oil and natural gas.

254SMO es compatible con aceros inoxidables austeniticos comunes. El 316L o 317L de uso frecuente falla debido a picaduras, corrosion en grietas o agrietamiento por corrosion bajo tension de cloruro. En la nueva estructura, se ha encontrado que 254SMO en muchos casos es una alternativa tecnicamente adecuada y de menor costo a las aleaciones a base de niquel y titanio.

The austenitic stainless steel 6Mo was developed on the basis of alloy 904l/1.4539. However, the molybdenum content at 6Mo is increased to 6.5%. 6Mo has excellent general corrosion resistance and improved pitting and crevice corrosion resistance. Resistance to stress corrosion cracking is also improved. It is often referred to as super austenitic stainless steel.

304 Stainless Steel Plate has very good formability and can be readily welded by all common methods. 304/304L dual certified.

316L stainless steel seamless tubing is used for more dimensionally precise applications. Less carbide precipitation during pipeline welding reduces intergranular corrosion and localized corrosion. Seamless tubes range from ?” to 16″.

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.

Grade 304L is widely used in the manufacturing industry and all standard welding techniques can be used for 304L plate and 304L pipe. The “L” in 304L stands for “low carbon content” and indicates a maximum carbon content of 0.035%. The “H” in 304H stands for “High Carbon Content”, which means that the carbon content is not less than 0.04% and not more than 0.10%.

ASTM B649 UNS N08904 Flange
Featuring 904 stainless steel for very good corrosion resistance, this GRAINGER APPROVED weld neck flange can be attached to a system via a circumferential weld at the neck. The welded area can be easily examined by radiography. Matched pipe and flange bore reduces turbulence and erosion inside the pipeline. Flange is excellent for use in your critical applications and is ideal for use with air, water, oil, natural gas, and steam.

SS 304 Blind Flange
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.

The combination of nickel and chromium in Incoloy 925 Ring Joint Type Flanges renders protection in both oxidizing and reducing atmospheres. High speed operations in Incoloy 925 Spacer Flanges such as grinding, milling or turning, are usually performed using water ¨C based coolants.

La aleacion 254 SMO es particularmente adecuada para aplicaciones donde se requiere resistencia al agua de mar clorada, asi como en plantas de blanqueo en la limpieza de gases de combustion, limpieza de gases de escape (EGC) en alta mar, la industria de la pulpa y el papel y la industria quimica.

ASTM A403 is the standard of pipe fittings material,it indicates the materials properties of different kinds of stainless steel,WP304 is one of the steel grade in this standard. 304 a kind of common stainless steel,it is widely used to make for the manufacture of equipment and parts which needs good comprehensive performance,corrosion resistance and formability.

Stainless steel 304 tubing is available as seamless or welded. Pipes can be drawn as seamless tubes from a single billet or welded from strip or sheet. There are different welding methods such as resistance welding for smaller pipes and electrofusion welding for larger diameter pipes.

SAE 304 stainless steel is the most common stainless steel. The steel contains both chromium (between 18% and 20%) and nickel (between 8% and 10.5%)[1] metals as the main non-iron constituents. It is an austenitic stainless steel. It is less electrically and thermally conductive than carbon steel. It is magnetic, but less magnetic than steel. It has a higher corrosion resistance than regular steel and is widely used because of the ease in which it is formed into various shapes.[1]

It is important that the material used for any project has the correct mechanical properties for the specific application. Heat treatment processes are often used to alter the mechanical properties of metals, and one of the more common heat treatment processes is normalizing.

304L stainless pipe has slightly lower mechanical properties than standard 304 grades, but is still widely used due to its versatility. Like Type 304 stainless steel, it is commonly used in beer brewing and winemaking, but is also used outside of the food industry, such as chemical containers, mining and construction. It is ideal for metal parts such as nuts and bolts exposed to salt water.

Stainless Steel 321 Flange
Featuring 304 stainless steel for very good corrosion resistance, this GRAINGER APPROVED weld neck flange can be attached to a system via a circumferential weld at the neck. The welded area can be easily examined by radiography. Matched pipe and flange bore reduces turbulence and erosion inside the pipeline. Flange is excellent for use in your critical applications and is ideal for use with air, water, oil, natural gas, and steam.

AWS E317L/ER317L filler metal or austenitic, low carbon filler metal with higher molybdenum content than ASME SA182 SS 317L flanges, or nickel based filler metal with sufficient chromium and molybdenum content to exceed 317L corrosion resistance should be used for welding 317L steel.