Duplex Steel S31803 Pipes - Manufacturer, Supplier

Duplex UNS S31803 Pipes, ASTM A790 S31803 Duplex Steel Welded Pipes, Duplex 1.4462 Seamless Pipes, Duplex Steel S31803 Seamless Pipe, Duplex Steel S31803 Pipes Supplier in Mumbai, India.

Piyush Steel is a manufacturer, exporter, and supplier of Duplex Steel UNS S31803 Pipes, which gives better corrosion resistance in the adverse environments. These pipes show properties of both ferritic and austenitic stainless steel. These pipes can be supplied in made to order dimensions, different specifications, designations, and standards. These pipes used in mainly in the commercial, industrial and engineering applications. These pipes are supplied in the annealed condition offering higher strength in impact loadings. The properties of these pipes are achieved by means of having an overall content than similar performing austenitic and ferritic grades. This makes it most cost effective options for many applications. We use only advance machines and equipment to fabricate these products, thus making it more precise and accurate. Because of this, it is used in many critical and demanding applications.

About Duplex Steel UNS S31803 Pipes-
Duplex Steel UNS S31803 Pipes offer higher corrosion resistance. These pipes are designed for elevated strength and readily fabricable. These pipes have good anti-oxidation properties in the saline water. These pipes have great stress corrosion cracking resistance and local corrosion resistance in reducing and oxidizing environments. It has balanced alloying chemistry which offers improved corrosion resistance and workability. Importantly, these pipes not recommended to be used in the applications above 300 deg C temperature. Duplex Steel UNS S31803 grade is well known for its elevated fatigue strength. In this reverse bending stress arrived at the room temperatures. The fatigue limit is same as yield strength. For example the fatigue strength is closed with the corrosion rates; because of this fatigue strength is lowered. Due to this reason, these pipes are a good option over traditional grades. These pipes offer elevated strength at the moderate temperatures in the lower temperature ranges. In this stress relieving operation is performed in the temp between 525- 600 deg C. because of this process the resistance in the severe environments increased.

Our quality norms-
Our quality policy is to satisfy customer’s needs and expectations. We have continually improved the effectiveness of the quality management systems, sets quality objectives and plans. Moreover, we are committed to upgrading the capabilities of technical and working staff through training programs and continuous technical quality awareness. We have achieved high quality through the hard work of our professionals. Every single employee here is responsible for the quality of their work. All Piyush steel products are tested according to internationally recognized standards by more stringent internal test procedures which are developed for the application in the harsh field conditions. In addition to this, we perform different destructive and non-destructive testing on products.

Destructive testing-
• Thermal performance test
• Mechanical test
• Tensile test
• Hardness test
• Pressure test
• Compression test
• Leakage test

Non-destructive testing–
• Pitting corrosion test
• Micro test
• Macro test
• Radiography
• PMI test
• Intergranular corrosion test
• Chemical test
All the tests are performed on the special testing section and we provide some documentation reports along with delivered products that assure our quality. The reports include mill test reports, QAP, raw material test report, disinfection reports, welding guide, NABL test report and more. To provide products in 100% safe mode we use prominent packaging material and techniques such as wooden cases, plywood cartons, boxes. Also, we supply these in the form of bundles with the additional support of end caps. It is individually wrapped in a film of plastic that adds protection from contamination.

What are the advantages of using S31803 duplex stainless steel pipe?

S31803 Duplex Stainless Steel pipes are highly beneficial for several reasons. The dual-phase structure of these pipes ensures a balanced combination of properties including strength, corrosion resistance, fracture and fatigue strength. Furthermore, their improved pitting corrosion resistance is up to twice that of austenitic and ferritic stainless steel grades. Additionally, the material possesses great weldability, high shock absorption and wear resistance capabilities compared to other ferritic and austenitic stainless steels. Moreover, the yield strength is increased significantly when the material is in solution annealed condition. This makes S31803 Duplex Stainless Steel pipes ideal for applications such as offshore engineering and industrial applications where elevated temperatures or corrosive environments are prevalent.

Can S31803 duplex stainless steel pipe be welded?

Yes, S31803 Duplex Stainless Steel pipe can be welded. It is important to note that it requires the use of a welding technique called “filler metal deposition” in order to get good results. This technique involves adding filler metals or consumable electrodes during the welding process in order to add strength and improve weld quality. The two most common techniques for welding duplex stainless steel pipes are shielded metal arc welding (SMAW) and gas tungsten arc welding (GTAW). Both these techniques offer good ductility, corrosion resistance, and mechanical properties when combined with proper heat treatment.

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ASME SA790 S31803 Duplex Steel Pipes Equivalent Grades

Duplex Steel S31803 Pipe Forms in Stock

Stock Size Range and Specifications For Duplex Steel S31803 Pipe

Pipe Specification : ASTM A790, A358 / ASME SA790, SA358

Dimension Standard : ANSI B36.19M, ANSI B36.10

Outside Diameter : 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock

Thickness Range : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS

Type : Seamless / ERW / Welded / Fabricated Pipes

Form : Round, Square, Rectangular, Oval, Hydraulic Etc

Length : Single Random, Double Random & Required Length

End : Plain End, Beveled End, Treaded

End Protection : Plastic Caps

Outside Finish : 2B, No.4, No.1, No.8 Mirror Finish for Duplex Steel Pipes, Finish as per customer Requirements

Delivery Condition : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn

Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports

Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

Specials : Sizes and Specifications other than above can be manufactured on request

Chemical Composition of Duplex Steel S31803 Pipes

Mechanical Properties of Duplex S31803 / 1.4462 Pipes

Markings On The Duplex Steel S31803 Pipes

The full identification of the pipe should be continuously marked down its whole length, including :

•   Nominal Pipe Size (Nominal Bore)
•   Schedule (Wall Thickness)
•   Specification
•   Grade
•   Method of Manufacture (Seamless or Welded)
•   Heat Number
•   Manufacturer’s Name or Symbol

Duplex Steel S31803 Pipes Application Industries

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