hot sale 309S round head square neck bolt Chemical Composition

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.

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.

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.

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.

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.

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.

Type 316 stainless steel is an austenitic chromium-nickel stainless steel and heat-resistant steel that has excellent corrosion resistance compared to other chromium-nickel steels when exposed to a variety of chemical corrosives such as seawater, brine solutions, etc.
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 B36.44

316 stainless steel pipe bend has very low responsiveness to magnetic fields. Unlike basic stainless steels, which are ferromagnetic, most stainless steel varieties (including 316) are austenitic ¡ª or effectively nonmagnetic.

310S stainless steel has good high temperature resistance. When the temperature exceeds 800 [1], it begins to soften, and the allowable stress begins to decrease continuously. The maximum operating temperature is 1200 ¡ãC. Due to the high content of nickel (Ni) and chromium (Cr), it has good oxidation resistance, corrosion resistance, acid and alkali resistance, and high temperature resistance. After the content, the strength is improved due to its solid solution strengthening effect. The chemical composition characteristics of austenitic stainless steel are based on chromium and nickel with elements such as molybdenum, tungsten, niobium and titanium added. Therefore, it has high strength and creep strength at high temperature.

The UNS S31254 Pipe Flange is made under different production types such as the forged, screwed, threaded and plate flanges. There are also different functional types such as slip on flanges, lap joint flanges, orifice flanges, welded neck flanges and blind flanges.

304L stainless steel pipe is a low carbon variant of grade 304 – the steel can be welded without problems with carbon precipitation (the precipitation of chromium carbide when heat is applied during welding depletes the steel of chromium, reducing its resistance to -corrosion/oxidation Effect).

Flat washers protect surfaces by evenly distributing torque when tightening bolts or screws. They prevent corrosion between steel screws and aluminum surfaces. Nylon washers can be placed under machine screws to reduce noise and wear and provide electrical insulation. Gaskets are used in plumbing and hydraulic projects.

Our UNS N08904 Stainless Steel Blind Flanges are widely used to close the tail of pipe of a pressure vessel, as they are designed to retain pressure in a high-pressure area, and are resistant to reducing acids like sulphuric acids in petrochemical plants and oil refineries.

The purpose of preliminary heat treatment: to eliminate some defects in blanks and semi-finished products, and to prepare organization for subsequent cold working and final heat treatment.

ASTM A312/A312M, Standard Specification for Seamless, Welded, and Heavy Cold-Worked Austenitic Stainless Steel Pipe, covers austenitic stainless steel, and manufactures a choice of welded and seamless types.

Stainless Steel 316 is an austenitic stainless grade with 4% molybdenum in its composition. The content of chromium, nickel and molybdenum makes stainless steel 316 stronger, corrosion resistant and ductile.

Stainless Steel 316L Flange is used to terminate the end of a piping system. The Stainless Steel 316L blind flange is basically a flange that does not have a hub or a bored center. Blind flanges have the face thickness of a flange, a matching face type, and similar bolting pattern. Stainless Steel 316L Blind flanges can also be used to seal a nozzle opening on a pressure vessel.

Incoloy 925 flange also contains additional levels of titanium and aluminum compared to 825.

254 SMo UNS S31254 super austenitic steel combines moderate tensile strength with high ductility for excellent corrosion resistance in seawater and various industrial environments. SMO 254 washer is effective against pitting, crevice corrosion and chloride stress corrosion cracking. 254 SMO washer is known for high ductility and good impact strength.

Grade 310S Stainless Steel Butt Weld Pipe Fitting contains low Carbon, with higher Nickel and Chromium content curbing Hydrogen sulphide attack, which used in various industries like heat exchangers, furnace parts, shipbuilding, heat treatment baskets, condensers, offshore etc.
The fittings are shaped up and then heated to a high temperature following a rapid cooling closer to the cooling in still air. This rapid cooling adds to the strength of the Stainless Steel 310 Pipe Fittings and makes them much stronger. The SS 310S Fitting is used in industries like the sea water processing, thermal energy generation plants and much domestic piping as well. 310S SS Weld Fittings is used in different pressure classes to cope up with the pressure containment requirement of the application as well.

These grades of austenitic stainless steels are the most versatile and widely used stainless steels.Type 304 and 304L stainless steel pipe can perform well in high temperature and harsh environments.

431 is a high chromium, low nickel, high hardenability martensitic stainless steel with high strength and good corrosion resistance. Compared to other 400 stainless grades, 431 stainless steel is designed to improve corrosion resistance and toughness, especially in quench hardened stainless steel. The 431 will perform well in marine environments as well as in aerospace applications such as aircraft fasteners and accessories. This alloy has great impact strength at high hardness levels.

This is what makes 316 ss pipe an ideal grade for applications such as pumps, valves, textile and chemical equipment, pulp and paper, and marine applications.
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 B36.61

These stainless steel 316L threaded flanges perform well in fresh water service even with high chloride levels.

The regular products of A403 WP321 pipe fittings are elbows,tees,reducers,caps,cross.

Both AISI 04 stainless steel and 304L stainless steel provide a general purpose stainless steel with good resistance to atmospheric corrosion, to many organic and inorganic chemicals and to food and beverages.

304 stainless steel elbow is a pipe fitting that connects two pipes with the same or different nominal diameters in the piping system, so that the pipes are bent at a certain angle. According to the angle, the most commonly used are 45¡ã, 90¡ã, 180¡ã. In addition, according to engineering needs, other abnormal angle elbows such as 60¡ã are also included. The connection methods with the pipeline include direct welding (the most common method), flange connection, threaded connection, socket connection, etc.

For tubing and piping applications, type 304 stainless steel is a common selection because it is highly chemical- and corrosion-resistant. However, type 304 stainless steel is not compatible with applications where temperatures fall between 800 and 1640 degrees Fahrenheit (F) because it is prone to carbide precipitation, a result of the material¡¯s .08 percent carbon content limit.
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.”

Stainless steel pipe is a kind of hollow long round steel, which is widely used in industrial transmission pipelines and
mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, machinery and instruments, etc. In addition, when the bending and torsional strength are the same, the weight is light, so it is “also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used as furniture, kitchenware, etc. In the standard of stainless steel pipe, Brinell hardness is the most widely used. The hardness of the material is often expressed by indentation diameter, which is intuitive and convenient. However, it is not applicable to steel pipes with hard or thin steel.

Stainless steel water pipe flange, also known as stainless steel acid resistant flange, has a smooth surface and is not easy to be oxidized by air.

316L is a less carbon variant of 316. Alloy 316L is generally used when welding is required to ensure maximum corrosion resistance. As 316L consists of lower carbon content it results in lesser carbide precipitation which is a result of welding. Our products are renowned for the amazing quality and finishing that they have on offer. Moreover, our products are known to offer maximum utility even under harsh usage, as we put our products through various quality control measures.
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

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]

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]

The UNS S31254 Weld Neck Flange is preferred in welding applications. These flanges can hold the pipe in place during welding. The material has up to 1390 degrees Celsius melting point so that it could be used in high temperature and high pressure applications such as power generation, heat exchangers, boiler and petrochemical industrial applications.

HT PIPE supplies seamless and welded 304/304L stainless steel pipe. Seamless 304 stainless steel pipe has no welds, so it can sometimes be more expensive than welded stainless steel pipe, however, it performs better than welded pipe in high pressure environments. Welded 304 stainless steel pipe is a welded steel pipe, the type of pipe is more affordable and versatile.
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 B36.28

The two most common stainless steel grades are 304 and 316. The key difference is the addition of molybdenum, an alloy which drastically enhances corrosion resistance, especially for more saline or chloride-exposed 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.”