What is Duplex Steel S31803 pipe, and what are its key features and properties?
Duplex Steel S31803 pipe is a type of stainless steel pipe that belongs to the duplex stainless steel family. It is characterized by its dual-phase microstructure, consisting of equal proportions of austenite and ferrite phases. This unique microstructure provides the pipe with exceptional mechanical properties, high corrosion resistance, and good weldability.

One of the key features of Duplex Steel S31803 pipe is its excellent strength, which allows it to withstand high pressures and resist deformation. It exhibits higher tensile and yield strength than conventional austenitic stainless steels, making it suitable for demanding applications in industries such as oil and gas, chemical processing, and marine environments.

In addition to its strength, Duplex Steel S31803 pipe offers impressive resistance to various forms of corrosion. Its composition, including chromium, molybdenum, and nitrogen, enhances its resistance to pitting, crevice corrosion, and general corrosion in acid- and chloride-rich environments. That makes it an ideal choice for applications where corrosion resistance is crucial.

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Furthermore, Duplex Steel S31803 pipe exhibits good toughness, enabling it to withstand impact and high-stress conditions. It also demonstrates good fatigue resistance, making it suitable for cyclic loading environments. Additionally, its weldability facilitates easy fabrication and installation processes.

What are the common applications of Duplex Steel S31803 pipe in different sectors?
Duplex Steel S31803 pipe finds widespread applications across multiple sectors due to its unique combination of properties. In the oil and gas industry, it is commonly used for offshore and onshore pipelines, subsea equipment, and refineries, thanks to its excellent corrosion resistance and strength. In the chemical processing industry, it is utilized in reactors, heat exchangers, and storage tanks due to its resistance to corrosive chemicals. The marine industry benefits from Duplex Steel S31803 pipe in applications such as shipbuilding, offshore structures, and seawater handling systems. It is also employed in the pulp and paper industry, power generation plants, desalination plants, and other sectors requiring a durable, corrosion-resistant piping solution.

Specification Of Duplex Steel S31803 Pipe

Pipe Standard ASTM A790 ASME SA790 / ASTM A928 ASME SA928
Pipe Dimension ANSI/ASME B36.19M, ANSI/ASME B36.10M
Pipe Sizes 1 / 2" NB - 24" NB
Pipe Outside Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Steel Pipe Manufacturing Process Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Duplex Stainless Steel Pipe Shapes Hydraulic, Round, Rectangle, Square, Hex, Honed
Duplex Stainless Steel Pipe Schedule SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Pipe Ends Half Hard, Soft, Hard, Quarter Hard, Spring Hard
Delivery Condition Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Value Added Services Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing

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Types Of Duplex Steel S31803 Pipes

Duplex Steel S31803 Round Pipe

S31803 Duplex Steel Round Pipe

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Duplex Steel 304H Square Pipe

Duplex Steel S31803 Square Pipe

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Duplex Steel S31803 Rectangular Pipe

Duplex Steel S31803 Rectangular Pipe

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Duplex Steel S31803 Polished Pipe

Duplex Steel S31803 Polished Pipe

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Widest Range of Duplex Steel S31803 Pipes in Mumbai, India.

  • Widest RangeSchedule 5 Duplex Steel S31803 Pipe
  • Widest RangeSchedule 10 Duplex Steel S31803 Pipe
  • Widest RangeSchedule 40 Duplex Steel S31803 Pipe
  • Widest RangeSchedule 80 Duplex Steel S31803 Pipe
  • Widest RangeSchedule 160 Duplex Steel S31803 Pipe
  • Widest RangeSchedule XXS Duplex Steel S31803 Pipe
  • Widest RangeSchedule XS Duplex Steel S31803 Pipe
  • Widest RangeDuplex Steel S31803 Electropolish Pipe
  • Widest RangeS31803 Duplex Steel Dairy Pipe
  • Widest RangeS31803 DSS Pipe HSN Code
  • Widest RangeDuplex Steel S31803 Round Pipe
  • Widest RangeLarge Diameter Duplex Steel S31803 Pipe
  • Widest RangeASTM A790 Duplex Steel S31803 Pipe
  • Widest RangeASME SA790 Duplex Steel S31803 Pipe
  • Widest RangeS31803 Duplex Steel Pipe Price 20 Feet
  • Widest RangeDuplex Steel S31803 Hollow Pipe
  • Widest RangeASTM A790 Duplex Steel S31803 Pipe
  • Widest RangeASME SA790 Duplex Steel S31803 Pipe
  • Widest RangeS31803 Duplex Steel ERW Pipe
  • Widest RangeS31803 Duplex Steel EFW Pipe

Check Other Pipes Types In Detail

Duplex Steel S31803 Pipes Equivalent Grades

STANDARD WERKSTOFF NR. UNS
Duplex Steel S31803 1.4462 S31803

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Duplex Steel S31803 Pipes Price

Product Price
Custom Size 4 Inch DSS 1.4462 Pipes Price US $ 1360 - 12200 / Ton
S31803 Duplex Steel Pipe Price US $ 1570 - 3600 / Ton
S31803 Duplex Pipe Price List $1500 - 1550/ Ton
Duplex Steel S31803 Pipe Price US $ 1350 - 2500 / Ton
SS 1.4462 Square Pipe Price List US $ 28 - 37 / kg
20mm Diameter Polished Duplex Steel S31803 Pipes Price $998.00 - $1,480.00/ Ton
ASTM A790 SCH 5S Plain End Duplex Steel S31803 Pipe Price List $780.00 - $1,650.00/ Ton
Ferritic Duplex Steel S31803 Pipe Price Per KG $1500.00 - $2700.00/ Ton
Schedule 10 Duplex Steel S31803 Pipes Price $1,800.00 - $2,900.00/ Ton

For Quatation & Questions Related To Duplex Steel S31803 Pipes

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Duplex Steel S31803 Pipe Manufacturing Process

Rolling and welding

Firstly, the Duplex steel strips are made to gone through various quality checks and are trimmed at edges. They are then fed to the tubes mill by Duplex steel pipe manufacturers in India. The strips pass through the number of rollers as per the required size. In the tubes-mill, the strip is gradually converted into the tubular shape. The fitted welding machine is then used to weld trim edges of the strip using TIG welding process. The scraps and inside weld bead are removed instantaneously by the Tibo machine. In this way, rolled pipes and tubes are formed.

The cleaning and heating phase

The rolled Duplex steel pipes thus manufactured are cut to the required lengths depending upon the industrial demand. These Duplex stainless pipes and tubes are then subjected to cleaning to remove the dirt. Further, a heat treatment is given to these rolled pipes and tubes to remove the stresses that may occur due to welding and formation processes. Heat treatment is given on the continuously rolling hearth furnace. The furnace is fitted with temperature recorders and controllers. After the heat treatment process, the Duplex Steel tubes and pipes are straightened and subjected to pickling for removing scales from the surface.

Cold- drawing process

In some cases, the required size may not be obtained from the mill directly. Then, the cold operation process can be used to obtain the desired size. In cold drawing process, the tubes or pipes are coated with oxalic and soap solution. This solution acts as a lubricant to reduce friction while cold drawing operation. In the cold drawing process, the tube or pipe is drawn over the bench using Die plugs.

Finishing process

The drawn-out tube or dss pipe is then subjected to cleaning, heat treatment, pickling and straightening. The computerized ink jet marking machine is used to do the marking on the finished pipes or tubes. The pipe or tube is marked with grade of material, size, heat number and the stamp of third party inspection before passing on to Duplex steel pipe exporters. The Duplex tubes or pipes thus produced will undergo certain testing and quality checks. This process is followed by proper packing and dispatch. There are numerous numbers of Duplex steel pipe applications, these pipes and tubes are used thereafter for.

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Chemical Composition Of Duplex Steel S31803 Pipe

Grade C Mn Si P S Cr Mo Ni N Fe
S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min

Mechanical Properties Of Duplex Steel S31803 Piping

Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 7.805 0.285 1420 – 1465 2588 – 2669

Testing & Inspection of Duplex Steel S31803 Pipes

Testing (Destructive, Non Destructive)

Macro Test Dye Penetrant Test (DP Test)
Hardness Test Ultra Sonic Test (UT)
Pitting Resistance Test Eddy Current Testing
Positive Material Identification – PMI Testing Hydrostatic Test
Chemical Analysis – Spectro Analysis Hydrogen-Induced Cracking (HIC) Test
Mechanical Testing Such as Tensile, Elongation, Reduction of Area Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
Micro Test Radiography Test
Intergranular Corrosion (IGC) Test Impact Test
Flaring Test Bend Test
Flattening Test

Duplex Stainless Steel S31803 Pipe Sizes in MM

Designation of Diameter O/D Nominal Wall Thickness
DIA SCH.5S SCH.5 SCH 10S SCH.10 SCH.20S SCH.30 SCH.40S SCH.40 SCH 60
(A) (B) Meter MM Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr
6 1/8 10.3 1 0.23 1.2 0.27 1.5 0.33 1.73 0.37
8 1/4 13.7 1.2 0.37 1.65 0.49 2 0.58 2.24 0.64
10 3/8 17.2 1.2 0.47 1.65 0.63 2 0.74 2.31 0.87
15 1/2 21.3 1.65 0.01 1.65 0.81 2.11 1.02 2.11 1.02 2.5 1.15 2.77 1.29
20 3/4 26.7 1.65 1.03 1.65 1.03 2.11 1.3 2.11 1.3 2.5 1.49 2.87 1.71
25 1 33.4 1.65 1.31 1.65 1.31 2.77 2.13 2.77 2.13 3 2.24 3.38 2.54
32 11/4 24.2 1.65 1.67 1.65 1.67 2.77 2.73 2.77 2.73 3 2.9 3.56 3.44
40 11/2 48.3 1.65 1.93 1.65 1.93 2.77 3.16 2.77 3.16 3 3.35 3.68 4.11
50 2 60.3 1.65 1.93 1.65 2.42 2.77 3.99 2.77 3.99 3.5 4.9 3.91 5.52
65 21/2 73 2.11 3.75 2.11 3.75 3.05 5.34 3.05 5.34 3.5 6 5.16 8.77
80 3 88.9 2.11 4.59 2.11 4.59 3.05 6.56 3.05 6.56 4 8.37 5.49 11.47
90 31/2 101.6 2.11 5.25 2.11 5.25 3.05 7.53 3.05 7.53 4 9.62 5.74 13.78
100 4 114.3 2.11 5.93 2.11 5.93 3.05 8.5 3.05 8.5 4.5 12.18 6.02 6.32
125 5 141.3 2.77 9.61 2.77 9.61 3.4 11.74 3.43 11.74 5 16.8 6.55 2210
150 6 168.3 2.77 11.47 2.77 11.47 3.4 14.04 3.43 14.04 5.5 22.08 7.11 28.69
200 8 219.1 2.77 15 2.77 15 3.76 20.77 3.76 20.27 6.35 33.82 7.04 37.38 8.18 43.2 10.81 53.9
250 10 273.1 3.4 22.95 3.4 22.95 4.19 28.2 4.19 28.2 6.35 42.41 7.8 51.81 9.27 61.22 12.2 82.8
300 12 323.9 3.96 31.72 4.19 33.6 4.57 36.54 4.57 36.54 6.35 50.48 8.38 66.2 9.53 75.01 10.31 80.94 14.27 110.62
350 14 355.6 3.96 34.86 4.78 41.99 6.35 55.53 7.92 68.95 9.53 82.58 9.53 82.58 11.13 96 15.06 128.42
400 16 406.4 4.19 42.2 4.78 48.07 6.35 63.61 7.92 79.03 9.53 94.7 9.53 94.7 12.7 125.2 16.66 162.59
450 18 457.2 4.19 47.46 4.78 54.15 6.35 71.69 7.92 89.1 11.13 124.32 9.53 106.83 14.27 158.27 19.05 209
500 2C 508 4.78 60.23 5.54 69.7 6.35 79.76 9.53 118.93 12.7 157.51 9.53 118.9 15.06 185.89 2062 251.65
550 22 558.8 4.78 65.95 5.54 76.75 6.35 87.84 9.53 131.07 12.7 173.66 9.53 131.07 15.88 216.04 22.23 298.55
600 24 609.6 5.54 83.8 6.35 95.92 6.35 95.92 9.53 143.2 14.27 212.72 9.53 143.2 17.45 258.74 24.59 360.21
650 26 660.4 7.92 129.4 12.7 205.97 9.53 155.32
700 28 711.2 7.92 139.47 12.7 222.13 15.88 276.48 9.53 167.44
750 3C 762 6.35 120.15 7.92 149.55 7.92 149.55 12.7 238.28 15.88 296.68 9.53 179.56
800 32 812.8 7.92 159.62 12.7 254.44 15.88 316.88 9.53 191.69 17.48 348.11
850 34 863.6 7.92 169.64 12.7 270.5 15.88 336.96 9.53 203.74 17.48 370.22
900 36 914.4 7.92 179.77 12.7 286.75 15.88 357.28 9.53 215.93 19.05 427.09

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Supply Cities Of Duplex Stainless Steel S31803 Pipes

The cities listed here are where we have supplied our grade Duplex Steel S31803 pipes in bulk or small orders. Cities from metropolitan to rural areas we can provide Duplex Steel S31803 pipes to satisfy the needs of our clients.

Mumbai, Seoul, Melbourne, Secunderabad, Pune, Ho Chi Minh City, Calgary, Granada, Dallas, Jamshedpur, Nagpur, Atyrau, Geoje-si, Rio de Janeiro, Manama, Sharjah, La Victoria, Tehran, Mumbai, Indore, Algiers, Vadodara, Chandigarh, Hanoi, Nashik, Coimbatore, Riyadh, Doha, London, Perth, Brisbane, Rajkot, Gimhae-si, Karachi, Kuala Lumpur, Noida, Caracas, Jakarta, Lagos, Aberdeen, Ankara, Kolkata, Cairo, Montreal, Dubai, Bogota, Al Jubail, Istanbul, Thiruvananthapuram, Sydney, New Delhi, Howrah, Thane, Vung Tau, Petaling Jaya, Moscow, Chennai, Bangkok, Milan, Courbevoie, Kanpur, Faridabad, Surat, Bhopal, Ludhiana, Kuwait City, Bengaluru, Navi Mumbai, Los Angeles, Santiago, Ranchi, Port-of-Spain, Hong Kong, Mexico City, Toronto, Chiyoda, Edmonton, Ahvaz, Hyderabad, Muscat, Jeddah, Gurgaon, Baroda, Al Khobar, Pimpri-Chinchwad, Ahmedabad, Singapore, Abu Dhabi, Visakhapatnam, Madrid, Colombo, New York, Lahore, Houston, Ulsan, Busan, Haryana, Dammam, Ernakulam, Jaipur.

Documents Provided at the time of Domestic Sales or Export of Duplex Steel S31803 Pipes

Certificate of Origin Raw Material Test Reports
Commercial Invoice Heat Treatment Charts
Packing List Quality Assurance Plan (QAP)
Fumigation Certificates NABL approved Laboratory Test Reports
Letter of Guarantee Material Test Certificates
ROHS Certificate Certificate of Compliance/Conformity

Application Industries We Supply Duplex Steel S31803 Pipes

Duplex Steel S31803 Pipes For Tertiary Sector, Duplex Steel 1.4462 Pipes For Construction, Duplex Steel S31803 Pipes For Chemical Industry, Duplex Steel 1.4462 Pipes For Waste, UNS S31803 Pipes For Mining, Duplex Steel S31803 Pipes For Energy, Duplex Steel S31803 Pipes For Pharmaceutical Industry, Duplex Steel S31803 Pipes For Transport, Duplex Steel S31803 Pipes For Manufacturing, Duplex Steel S31803 Pipes For Production, Duplex Steel S31803 Pipes For Technology, Duplex Steel S31803 Pipes For Agriculture, Duplex Steel S31803 Pipes For Factory, Duplex Steel S31803 Pipes For Food Industry, Duplex Steel S31803 Pipes For Real Estate, Duplex Steel 1.4462 Pipes For Textile Industry, UNS S31803 Pipes For Engineering, Duplex Steel S31803 Pipes For Electronics, S31803 SS Pipes For Health care, Duplex Steel S31803 Pipes For Pulp and Paper Industry, Duplex Steel S31803 Pipes For Rail Transport.

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