Duplex Steel S31803/S32205 Forged Fittings

A182 / SA182 Specification for Duplex Steel Forged Fittings

ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799 Dimension Standards

Sizes: 1/8″ to 4″

The types of socket weld fittings include screwed-threaded fittings (NPT and PT types).

The threaded end has a pressure rating of 2000 lbs, 3000 lbs, and 6000 lbs. 3000/6000/9000 lb socket-weld end.

There is a type of forged fitting made from duplex stainless steel grades S31803/S32205 that is a type of piping component made from duplex stainless steel grades S31803/S32205. As stated above, these fittings are produced through a forging process, which involves applying heat and pressure to the material in order to shape it into the desired shape.

As a type of austenitic-ferritic stainless steel, S31803/S32205 is a type of duplex steel, which offers excellent corrosion resistance and high strength at the same time. As a result of its balanced composition of austenite and ferrite phases, it is capable of providing superior mechanical and corrosion-resistant properties.

It is important to realize that the forged fittings made from duplex steel S31803/S32205 are highly resistant to corrosion caused by a wide range of environments, such as seawater, acidic solutions, and chloride-containing environments. As a result, they are commonly used in industries such as chemical processing, oil and gas, and marine applications to name just a few.

Various types of Duplex Steel S31803/S32205 Forged Fittings are available, including elbows, tees, couplings, unions, and crosses. In order to satisfy different piping requirements, these fittings have different configurations, such as threaded, socket-weld, and butt-weld options.

This is why it is important to ensure that the Duplex Steel S31803/S32205 Forged Fittings are manufactured according to industry standards, such as ASTM A182 and ASME B16.11. As part of these standards, the material composition, the dimensions, and the tolerances of the forged fittings are specified.

As a summary, Duplex Steel S31803/S32205 Forged Fittings are high-strength and corrosion-resistant piping components made from the highest quality duplex stainless steel grades S31803/S32205, suitable for use in harsh and corrosive environments.

Advantages:

1. High strength and toughness:
   Forged fittings made from duplex steel are known for their high strength-to-weight ratio, and they are capable of withstanding heavy loads as well as high pressures without cracking or deforming.
2. Excellent corrosion resistance:
   As forged fittings, that are made from duplex steel S31803/S32205, are highly resistant to corrosion and pitting, making them the ideal choice for harsh environments, like offshore oil and gas platforms, in which corrosion and pitting can occur.
3. Good weldability:
   As duplex steel forged fittings can be easily welded, they are ideal for easy installation and maintenance.
4. Cost-effective:
   As an alternative to more expensive materials such as nickel alloys, Duplex steel is a cost-effective and corrosion-resistant material that provides high strength and resistance to corrosion.

Disadvantages:

1. Limited availability.
   Forged fittings made of duplex steel S31803/S32205 may not be as widely available as fittings made of other materials, which might make them more difficult to obtain.
2. Sensitivity to heat treatment:
   As forged fittings made of duplex steel can be sensitive to heat treatment, improper treatment can result in the material losing some of its properties.
3. Limited use in high-temperature applications:
   Because of the limited strength of duplex steel at high temperatures, it may not be suitable for use in high-temperature applications.
4. Potential for stress corrosion cracking:
   It is possible for duplex steel to be susceptible to stress corrosion cracking when placed in certain environments, such as those with high levels of chlorides.

A notable difference between the two UNS numbers is that S32205 contains a higher nitrogen content, giving an already solid surface an extra layer of protection. The presence of treated nitrogen provides an additional layer of protection against corrosive compounds. In comparison with its closest contemporary, S32205 has a slight but significant advantage in corrosion resistance.

The icing on the cake is the increase in its ability to fortify itself due to nitrogen introduction. In addition to retaining the quality of any application, duplex steel now benefits from an enhanced ability to protect against wear and tear.

S32205

 S32205 is ferritic-austenitic duplex steel with a ferritic-austenitic microstructure. An alloy containing 40-50 percent ferrite is annealed.

With the duplex microstructure, ferritic grades are tough and austenitic grades are corrosion-resistant. There are many instances in which the metal is used as a real-life solution to the Achilles’ heel of stainless steel, chloride-induced stress cracks.

The corrosion resistance of UNS S32205 is better than that of 317L stainless steel. Most sulfuric acid concentrations and saltwater are no match for the alloy’s corrosion resistance. Also resistant to sulfide stress corrosion cracking (sour-gas environments) is UNS S32205 duplex stainless steel. Its excellent composition and hence efficiency are largely responsible for UNS S32205’s high chromium, nitrogen, and molybdenum concentrations.

S31803 

S31803 is a duplex stainless steel grade with a 50:50 austenite and ferrite microstructure. Strong mechanical strength, good ductility, and moderate to good corrosion resistance make this material ideal for a variety of applications.

An annealed version of this Duplex Steel UNS S31803 material is typically provided. The yield strength of the material in an annealed state is roughly 450 Mpa.

Material alloy A276 S31803 is effective as a substitute for austenitic stainless steels in the 300 series. In fact, it may be utilized as a replacement in practically any application requiring great mechanical strength and low weight.

• Systems that use seawater
• Pumps and valves for seawater
• Vessels for chemical processing, pipework, and heat exchangers
• Scrubbers for FGD
• Digesters for pulp mills and bleach washers
• Food processing machinery
• Pipeline in the oil field

• Filters for flue gases
• Chemical storage tanks
• Exchangers of heat
• Components of acetic acid distillation

S31803 and S32205 are alloys with more similarities than differences. First of all, they are both stainless steel with comparable elemental compositions. As duplex 2205 members, UNS S31803 and S32205 have approximately equal amounts of austenite and ferrite. Secondly, both alloys are highly durable and strong. In some of the most challenging and inhospitable manufacturing processes, S31803 and S32205 are required to withstand repeated and continuous abuse.

The most noticeable difference between the two is UNS S32205 has a higher nitrogen concentration, which adds another layer of protection to a firm surface. Nitrogen provides an additional layer of protection against corrosive substances attempting to attack and eat away at the steel solution. Compared to its nearest competitor, UNS S32205 offers a significant advantage in corrosion resistance.

As a result of adding nitrogen, its ability to defend itself has increased. Duplex steel is now capable of resisting wear and tear better than ever and maintaining the quality of any application.

A duplex stainless steel grade has a ferritic-austenitic microstructure, with a phase balance of approximately 50% ferrite and 50% austenite. Many of the beneficial properties of ferritic and austenitic stainless steels are combined in them.

1. Elbo

Duplex Stainless Steel 1.4462 45 Degree Forged Elbow

DSS 1.4462 Short Radius Elbow

DSS S31803 Socket weld Elbow

SAF 2205 Screwed / Threaded Elbow

DSS S32205 Welded Pipe Elbow

ANSI B16.9 DSS S31803 Elbow

SAF 2205 2D Elbow

Duplex 2205 1.5D Elbow

Duplex Steel 2205 Elbow

ASTM A182 Duplex 2205 Forged Elbo

Duplex Steel 1.4462 Reducing Elbow

UNS S32205 90 Deg. LR Elbow

UNS S31803 Buttweld 10D Elbow

Duplex Steel 2205 Seamless Elbow

ASME SA815 S32205 Duplex Steel Pipe Elbow

2. Tee

Duplex Steel 1.4462 Unequal Tee

UNS S32205 Equal Tee

Duplex Steel S32205 Tee

DSS 2205 Tee

ANSI B16.9 DSS S31803 Tee

SAF 2205 Screwed / Threaded Tee

ASTM A182 Duplex 2205 Forged Tee

SAF 2205 Socket weld Tee

UNS S31803 Buttweld Tee

DSS S32205 Welded Pipe Tee

Duplex Stainless Steel 1.4462 Reducing Tee

DSS 1.4462 Forged Tee

ASME SA815 S32205 Duplex Steel Pipe Tee

Duplex Steel 2205 Tee

Duplex Steel 2205 Seamless Tee

3. Cross

Duplex S31803 Cross

Duplex Steel 2205 Seamless Cross

DSS S31803 Socket weld Cross

UNS S32205 Buttweld Cross

SAF 2205 Cross

Duplex Steel 1.4462 Reducing Cross

Duplex Steel 2205 Cross

ANSI B16.9 DSS S31803 Cross

DSS 1.4462 Forged Cross

Duplex Stainless Steel 1.4462 Unequal Cross

SAF 2205 Screwed / Threaded Cross

UNS S31803 Equal Cross

ASME SA815 S32205 Duplex Steel Pipe Cross

ASTM A182 Duplex 2205 Forged Cross

SAF 2205 Welded Pipe Cross

Throughout the length of the forged fittings, the following information should be continuously marked

 Determination of rating

Designation of materials

 Grade Specification

The following classifications are available: 2000, 3000, 6000, and 9000

An indication of the manufacturer’s name or symbol

In addition to its excellent corrosion resistance, duplex stainless steel also has excellent mechanical properties. Since this material is more corrosion-resistant than carbon steel and stainless steel, it ensures greater uptime. Because of the mechanical strength, the construction is lighter, less welding is required, and systems are more compressed.

There are a few exceptional properties associated with Duplex Steel Forged Fittings. A robust construction, optimum performance, good durability, high tensile strength, corrosion resistance, low maintenance, and dimensional accuracy are some of its characteristics.

In applications such as petrochemicals, paper & pulp industry, specialty chemicals, condensers, heat exchangers, oil & gas processing, railways, constructions, etc., Duplex S31803/S32205 Forged Fittings are used.

Each range of Duplex Steel Forged Fittings in our industry undergoes several tests. There are IGC tests, pitting corrosion tests, chemical tests, etc. Quality assurance plan, MTC-En10204/3.1b, third-party test report, radiography tests report, etc. are among the documents we provide.

Forged Duplex Steel S31803 / S32205 Fitting is usually the package we take to ensure quality. The bags are made of environmental poly bags, then they are placed in wooden cases or pallets that are free of fumigation. It is also possible to accept customized packages, such as OEMs. Plastic wraps and bubble wraps are used to protect the product inside wooden corrugated boxes. We at Purohit Pipe Industries strive to deliver solutions that are perfectly suited to our clients’ requirements. In order to prevent damage in transit, we pack these products in appropriate packing material. We ensure that orders are delivered on time by choosing the fastest shipping method. We offer these bars at reasonable rates, with convenient doorstep service, proper packaging, and fast shipping. Our goal is to provide excellence in the shortest amount of time and to the highest standards possible. With the packaging, we attach some documents and reports that demonstrate the quality of the products we offer. Big bundles of this product are packaged with individual wrappings of plastic film to prevent contamination.