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Duplex Pipe

Duplex Pipe Manufacturer in India

Sizes in Stock
Sizes in Stock Duplex SS Seamless Pipe OD: 4 - 219mm Duplex Welded Pipe OD: 5.0 - 1219.2 mm
European & American Standard
European & American Standard: ASTM A790, ASME SA790, UNS S32205/S31803, WNR 1.4462
Schedule
Duplex SS Pipe Schedule: 5 to XXH
End
SS Duplex Pipe End :Beveled, Plain, Threaded End
Length
Duplex Stainless Pipe Length: Custom
Pressure
HSN: 73049000
Delivery Time
Delivery Time: Spain : 30 Days Malaysia : 10 Days
Delivery Condition
Delivery Condition : Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Drawn
Process
Process: ERW, Seamless,Welded
MTC Certificate
MTC Certificate: EN 10204 3.1 and 3.2
Origin
Origin: Indian, European, Japanese
mail
sales@siddhagirimetals.com
Duplex Pipe Specification


Customized Duplex Seamless Pipe Supplier in India in Various Grades

Duplex Stainless Steel Pipe Grades

  • Grade 2205
  • Grade 2304

 

Duplex Seamless Pipe

Duplex Seamless Pipe

DSS Welded Pipe

DSS Welded Pipe

Duplex SS ERW Pipe

Duplex SS ERW Pipe

 

Siddhagiri Metals & Tubes

Table of Content

Buy Duplex Stainless Steel Welded Pipe As Per Your Specification At Fair Price

Duplex Pipe Specification

Top Duplex Pipe Manufacturer in India in Various Grades With Seamless and Welded Form

Seamless Pipe Sizes

Duplex SS Seamless Pipe Sizes

  • Outside Diameter: 4 - 219mm
  • Wall Thickness:0.5 - 20mm
  • Length:Single, Double Random & Cut Length
  • Schedule: 5 - XXH
Welded Pipe Sizes

Duplex Steel Welded Pipe Sizes

  • Outside Diameter: 5.0 - 1219.2 mm
  • Wall Thickness: 0.5 - 20mm
  • Length:Upto 26 m
  • Schedule: 5 - 80S
Thick Walled Pipe Sizes

Duplex Thick Walled Pipe Sizes

  • Outside Diameter: 6 to 630 mm
  • Wall Thickness: 0.5 to 30 mm
  • Length: Custom
Form

Duplex Stainless Steel Pipe Form

  • Round
  • Square
  • Rectangle etc.
Physical Properties

Duplex Pipe Material Physical Properties

  • Density: 7.8 g/cm³
  • Melting Point: 1350 °C (2460 °F)
  • Temprature Range:-50°C to 300°C
Method

Duplex Steel Pipe Method

  • Precision Rolled
  • Cold Formed
  • Hot Formed
Standards

DSS Pipe Standards

  • ASTM: A790 | ASME : SA790
  • UNS: S32205/S31803 | WNR: 1.4462

Manufacturing Process

Duplex SS Pipe Manufacturing Process

  • ERW
  • Seamless
  • Welded
Origin

Duplex Seamless Pipe Origin

  • Japanese
  • Indian, Korean
  • European, American
Finish

Duplex Stainless Pipe Finish

  • Bright
  • Polished
  • Annealing
Testing

SS Duplex Pipe Testing

  • Chemical
  • PMI
  • Mechanical
  • Ultrasonic
Application

Duplex Stainless Pipe Application

  • Petrochemicals
  • Condensers
  • Heat exchangers
  • Power Generation
Documentation

Stainless Steel Duplex Pipe Documentation

  • Chemical and Mechanical Reports
  • 100% Radiography Test Report
  • Third Party Inspection 
  • Chemical and Mechanical Reports
Packaging

Duplex Steel Pipe Packaging

  • Wooden Boxes
  • Bubble wraps
  • Steel Strips Bundled
  • Custom

Preferred Duplex Pipe Supplier for industries requiring strength, resilience, and precision.

Duplex Pipe Price

Top prices for Duplex Pipe with MTC, Click here for rates

Duplex Pipe Weight Chart

Weight 19 SWG
(1.0 mm)		 16 SWG
(1.65 mm)		 18 SWG
(1.2 mm)		 14 SWG
(2.1 mm)		 10 SWG
(3.2 mm)		 12 SWG
(2.6 mm)
Size (in.) OD Weight/m Weight/m Weight/m Weight/m Weight/m Weight/m
4 101.6 2.495 4.091 2.988 5.183 7.810 6.385
3 1/2 88.9 2.180 3.571 2.610 4.521 6.802 5.566
3 76.2 1.865 3.051 2.232 3.860 5.794 4.747
2 1/2 63.5 1.550 2.531 1.854 3.198 4.786 3.928
2 50.8 1.235 2.012 1.476 2.537 3.778 3.108
1 1/2 38.1 0.920 1.492 1.098 1.875 2.770 2.289
1 1/4 31.75 0.763 1.232 0.909 1.544 2.266 1.880
1 25.4 0.605 0.972 0.720 1.214 1.762 1.470
3/4 19.05 0.448 0.712 0.531 0.883 1.258 1.061
5/8 15.875 0.369 0.582 0.437 0.718 1.006 0.856
1/2 12.7 0.290 0.452 0.342 0.552 0.754 0.651

Stock Duplex Steel Pipe in Square, Round, Rectangular Form With Schedule 5 to XXS

Types of Duplex Pipe

Renowned Duplex Pipe Manufacturers in India in Various Types and Surface Finishes

Duplex Stainless Steel Thick Wall Pipe

Duplex Stainless Steel Thick Wall Pipe

Duplex Steel Round Pipe

Duplex Steel Round Pipe

Duplex Stainless Square Pipe

Duplex Stainless Square Pipe

Stainless Steel Duplex Hot Finished Pipe

Stainless Steel Duplex Hot Finished Pipe

 

Duplex Cold Finished Pipe

Duplex Cold Finished Pipe

DSS Polished Pipe

DSS Polished Pipe

Duplex SS Decorative Pipe

Duplex SS Decorative Pipe

Duplex Steel Rectangular Pipe

Duplex Steel Rectangular Pipe

Duplex Stainless Steel Pipe Schedule Chart

Nominal OD SCH 60 SCH 40 SCH 40S/STD SCH 30 SCH 20 SCH 10 SCH 10S SCH 5S
Size - WT kg/m WT kg/m WT kg/m WT kg/m WT kg/m WT kg/m WT kg/m WT kg/m
1/4" 13.7 - - 2.24 0.63 2.24 0.63 - - - - - - 1.65 0.5 - -
1/2" 21.3 - - 2.77 1.27 2.77 1.27 - - - - - - 2.11 1.02 1.65 0.81
1" 33.4 - - 3.38 2.5 3.38 2.5 - - - - - - 2.77 2.13 1.65 1.31
1 1/4" 42.2 - - 3.56 3.39 3.56 3.39 - - - - - - 2.77 2.73 1.65 1.68
2" 60.3 - - 3.91 5.44 3.91 5.44 - - - - - - 2.77 3.99 1.65 2.42
1 1/2" 48.3 - - 3.67 4.05 3.67 4.05 - - - - - - 2.77 3.16 1.65 1.93
3" 88.9 - - 5.49 11.29 5.49 11.29 - - - - - - 3.05 6.56 2.11 4.59
3 1/2" 101.6 - - 5.74 13.57 5.74 13.57 - - - - - - 3.05 7.53 2.11 5.26
5" 141.3 - - 6.55 21.77 6.55 21.77 - - - - - - 3.4 11.74 2.77 9.61
6" 168.3 - - 7.11 28.26 7.11 28.26 - - - - - - 3.4 14.04 2.77 11.48
4" 114.3 - - 6.02 16.07 6.02 16.07 - - - - - - 3.05 8.54 2.11 5.93
8" 219.1 10.31 53.08 8.18 42.55 8.18 42.55 7.07 36.81 6.35 33.31 - - 3.4 20.12 2.77 14.9
2 1/2" 73 - - 5.16 8.63 5.16 8.63 - - - - - - 3.05 5.35 2.11 3.75
12" 323.8 14.28 108.9 10.31 79.73 9.53 73.88 8.38 65.2 6.35 49.73 - - 4.57 36.53 3.96 31.71
10" 273 12.7 81.55 9.27 60.3 9.27 60.3 7.8 51.03 6.35 41.77 - - 4.19 28.2 3.4 22.95
3/4" 26.7 - - 2.87 1.68 2.87 1.68 - - - - - - 2.11 1.3 1.65 1.03
14" 355.6 15.09 126.7 11.13 94.55 9.53 81.33 9.53 81.33 7.92 67.9 6.35 54.69 4.78 41.99 3.96 34.87
3/8" 17.1 - - 2.31 0.85 2.31 0.85 - - - - - - 1.65 0.64 - -
1 /8" 10.3 - - - - 1.73 0.386 - - - - - - 1.24 0.279 - -
18" 457.2 19.05 205.7 14.27 155.8 9.53 105.1 11.13 122.3 7.92 87.71 6.35 70.57 4.78 54.15 4.19 47.53
16" 406.4 16.66 160.1 12.7 123.3 9.53 93.27 9.53 93.27 7.92 77.83 6.35 62.64 4.78 48.07 4.19 42.2
20" 508 20.62 247.8 15.09 183.4 9.53 117.1 12.7 155.1 9.53 117.1 6.35 78.55 5.54 69.7 4.78 60.23
24" 609.6 24.61 235.2 17.48 255.4 9.53 141.1 14.27 209.5 9.53 141.1 6.35 94.53 6.35 95.92 5.54 83.8
22" 558.9 22.23 234.2 - - 9.53 129.1 12.7 171 9.53 129.1 6.35 85.54 5.54 75.75 4.78 65.8
26" 660.4 - - - - 9.53 152.8 - - 12.7 202.7 7.92 127.3 - - - -
30" 762 - - - - 9.53 176.8 15.88 291.1 12.7 234.6 7.92 147.2 7.92 149.55 6.35 120.15
28" 711.2 - - - - 9.53 164.8 15.88 271.2 12.7 218.6 7.92 137.3 - - - -

High-performance Duplex Pipe Supplier offering materials built to endure the toughest conditions.

HSN Code of Duplex Stainless Steel Pipe

Description HSN Code
Duplex Pipe 73049000

What is the surface finish of Duplex Steel Pipes?

What is the surface finish of Duplex Steel Pipes?

Roughness of Duplex Steel Pipe

OD Roughnes ID Roughness
RA 20 defect level
Max. 50 μm Max. 20 μm
Find Hot and Cold Formed DSS ERW Pipe With Wall Thickness 0.5 - 20mm or Custom

Duplex Stainless Steel Pipe Wall Thickness

Size (in.) Wall Thickness (mm)
1 (DN 25) 1.2-3
10 (DN 250) 4.5-15
2 (DN 50) 1.6-5
6 (DN 150) 4-10
12 (DN 300) 5-16
1/2 (DN 15) 1.2-3
8 (DN 200) 4-12
4 (DN 100) 3-8

A reputed Duplex Pipe Supplier in India provides pipes known for their strength and corrosion resistance.

Sizes of Duplex Pipe Material

Professional Duplex Pipe Manufacturer in India in Many Sizes and Wall Thicknesses.

WT (mm) OD (mm) Schedule in. Kg/m
1.65 17.15 10S 3/8 0.64
2.11 21.34 10S 1/2 1.02
2.77 33.40 10S 1 2.13
2.11 26.67 10S 3/4 1.30
2.77 42.16 10S 1¼ 2.73
2.77 48.26 10S 1½ 3.16
3.05 73.03 10S 2½ 5.35
2.77 60.33 10S 2 3.99
3.05 88.90 10S 3 6.56
1.65 13.72 10S 1/4 0.50
3.05 114.30 10S 4 8.50
3.05 101.60 10S 3½ 7.53
6.55 141.30 40S 5 22.10
8.18 219.08 40S 8 43.20
3.4 168.28 10S 6 14.04

Weekly Delivery of Duplex Pipe in below Countries

Export to Continent Port Shipping time
Singapore
Singapore		 Asia Port Klang 7-14 Days
Germany
Germany		 Europe Port of Rotterdam 12 Days
Malaysia
Malaysia		 Asia Port of Singapore 15-50 Days

Duplex Pipe Monthly Delivery in below Countries

Export to Continent Port Shipping time
USA
USA		 North America Port of Los Angeles 33-47 Days
Brazil
Brazil		 South America Port of Itaqui 25-39 Days
UAE
UAE		 Asia Port of Shanghai 20-25 Days

DSS Pipe Dimensions

Size OD (in.) ID WT Designations Weight
5 5.563 5.345
5.295
5.047
4.813
4.563
4.313
4.063		 0.109
0.134
0.258
0.375
0.500
0.625
0.750		 5-5S
10-10S
Std.-40-40S XS-80-80S 120
160
XX		 6.3490
7.7700
14.6200
20.7800
27.0400
32.9600
38.5500
4 4.500 4.334
4.260
4.026
3.826
3.624
3.438
3.152		 0.083
0.120
0.237
0.337
0.438
0.531
0.674		 5-5S
10-10S
Std.-40-40S XS-80-80S 120
160
XX		 3.9150
5.6130
10.7900
14.9800
19.0000
22.5100
27.5400
3 3.500 3.334
3.260
3.068
2.900
2.624
2.300		 0.083
0.120
0.216
0.300
0.438
0.600		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 3.0290
4.3320
7.5760
10.2500
14.3200
18.5800
2 1-2 2.875 2.709
2.635
2.469
2.323
2.125
1.771		 0.083
0.120
0.203
0.276
0.375
0.552		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 2.4750
3.5310
5.7930
7.6610
10.0100
13.6900
2 2.375 2.245
2.157
2.067
1.939
1.689
1.503		 0.065
0.109
0.154
0.218
0.344
0.436		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 1.6040
2.6380
3.6530
5.0220
7.4620
9.0290
1 1-2 1.900 1.770
1.682
1.610
1.500
1.338
1.100		 0.065
0.109
0.145
0.200
0.281
0.400		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 1.2740
2.0850
2.7180
3.6310
4.8590
6.4080
1 1-4 1.660 1.530
1.442
1.380
1.278
1.160
0.896		 0.065
0.109
0.140
0.191
0.250
0.382		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 1.1070
1.8060
2.2730
2.9970
3.7650
5.2140
1 1.315 1.185
1.097
1.049
0.957
0.815
0.599		 0.065
0.109
0.133
0.179
0.250
0.358		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 0.8678
1.4040
1.6790
2.1720
2.8440
3.6590
3-4 1.050 0.920
0.884
0.824
0.742
0.618
0.434		 0.065
0.083
0.113
0.154
0.219
0.308		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 0.6838
0.8572
1.1310
1.4740
1.9440
2.4410
1-2 0.840 0.710
0.674
0.622
0.546
0.466
0.252		 0.065
0.083
0.119
0.147
0.188
0.294		 5-5S
10-10S
Std.-40-40S XS-80-80S 160
XX		 0.5383
0.6710
0.8510
1.0880
1.3090
1.7140
3-8 0.675 0.545
0.493
0.423		 0.065
0.091
0.126		 10-10S
Std.-40-40S XS-80-80S		 0.4235
0.5676
0.7388
1-4 0.540 0.410
0.364
0.302		 0.065
0.088
0.119		 10-10S
Std.-40-40S XS-80-80S		 0.3297
0.4248
0.5351
1-8 0.405 0.307
0.269
0.215		 0.049
0.068
0.095		 10-10S
Std.-40-40S XS-80-80S		 0.1863
0.2447
0.3145

Duplex Pipe ASTM Code

Specification WT Variation Length Tolerance (mm) OD Variation (mm)
- Under (%) Over (%) Under Over Nominal Diameter Over Under
Seamless Boiler -0 +22 0 3.175 25.4-38.1 incl .1524 .1524
Welded Boiler +10-10 0 3.175 38.1-50.8 Excl .2032 .2032
Seamless & Welded -10 +10 0 4.8 38.1-88.9 excl .25 .25
Service -10 +10 0 4.8 139.7-203.2 excl .76 .76
-10
-10		 +10
+10		 0
0		 3.2
3.2		 25.4
38.1		 5
5		 .20
.20
Seamless & Welded -10 +10 0 3.2 60.5 5 .28
ASTM-A312 nominal wall 6.4 0 101.6-203.2 incl 1.59 .79
ASTM A-358
Welded pipe		 -0.3 6 2198-750mm +0.5% -
European and Japanese Origin Duplex Pipe Material For Equipment Like Pressure Vessels and Heat Exchangers

Applications of Duplex Seamless Pipe

Established Manufacturer Of Duplex Pipe in India For Chemical and Marine Environments

  • Transportation of oil and gas
  • Chemical processing, transport and storage
  • Oil and gas refining
  • Oil and gas exploration and offshore rigs
  • Cooling pipes
  • Pollution control equipment
  • Marine environments
  • Chemical process plant
  • Pulp & paper manufacturing
  • Heat exchangers
  • Structural and mechanical components

Check Out Your Nearby Locations For Fastest Deliveries

Riyadh Saudi Arabia Damam Al-khobar UAE Al Jubail
Ethiopia Angola Egypt Zambia Ghana Tanzania
Kenya Morocco Gabon Houston Dubai Tunisia
South Africa Abu Dhabi Nigeria Mozambique USA Oman
Indiana New South Wales Texas California Algeria Carolina

Duplex SS Pipe Temperature Range

Duplex Temperature Range
- °F °C
UNS S32205 1870 To 2010 1020 To 1100
UNS S31803 1870 To 2010 1020 To 1100

Pressure Rating of Duplex Stainless Pipe

OD (in.) Wall Thickness (in.)
.120 .109 .095 .083 .065 .049 .035 .028
Pressure (psig)
3/4 - - 4600 4000 3000 2200 - -
5/16 - - - - 7300 5400 3700 -
1 4300 3900 3400 2900 2200 - - -
1/2 - - - - 4400 3200 2300 -
3/8 - - - - 6100 4400 3100 -
1/8 - - - - - - 10100 7900
1/4 - - - - 9500 7000 4800 3700

SS Duplex Pipe Testings

Test Type
Surface Crack Detection Non-Destructive
Visual Inspection Non-Destructive
Magnetic Particle Testing Non-Destructive
Impact Test Destructive
Flaw Detection Non-Destructive
X-Ray or Gamma Ray Inspection Non-Destructive
Hydrostatic Test Destructive
Hardness Test Destructive
Grain Size Test Destructive
Tensile Test Destructive
Chemical Composition Test Destructive

What challenges are associated with the fabrication of Duplex Pipes?

  • Cold Working and Machining
  • Welding Issues
  • Heat Treatment Control
  • Material Availability and Cost
  • Sensitivity to Stress Corrosion Cracking
  • Corrosion Resistance during Fabrication
  • Forming and Bending

Duplex Pipe Welding

Duplex Pipe Welding

What makes Duplex Steel Pipes different from other steel pipes?

  • Duplex Steel Pipes are made from a unique combination of austenitic and ferritic microstructures, making them different from other steel pipes.

Equivalent of Duplex Steel Pipe

STANDARD UNS WNR
S32205 S32205 1.4462
S31803 S31803 1.4462

Duplex Pipe Chemical Composition

Grade C≤ S≤ P≤ Si≤ Mn≤ Cr Ni Mo Cu N
S32760 0.05 0.01 0.03 1.00 1.00 24.0-26.0 6.0-8.0 3.0-4.0 0.50-1.00 0.20-0.30
S32750 0.03 0.02 0.035 0.80 1.20 24.0-26.0 6.0-8.0 3.0-5.0 0.5 0.24-0.32
S32205 0.03 0.02 0.03 1.00 2.00 22.0-23.0 4.5-6.5 3.0-3.5 - 0.14-0.20
S31803 0.03 0.02 0.03 1.00 2.00 21.0-23.0 4.5-6.5 2.5-3.5 - 0.08-0.20

Mechanical Properties of Duplex Seamless Pipe

Properties Yield,min,ksi[MPa] Tensile,min,ksi[MPa] Hardness,HB(max) Elongation,%(min)
S32760 80 [550] 109 [750] 300 25
S32750 80 [550] 116 [800] 300 15
S32205 65 [450] 95 [655] 290 25
S31803 65 [450] 90 [620] 290 25

SS Duplex Pipe Physical Properties

Alloy UNS Hardness (max) Spec. Thermal Conductivity (BTU-in/ ft2-h-°F) Elasticity Modulus (x106 psi) Thermal Expansion Coefficient (IN./IN./°F x 10-6)
Duplex 2205 S31803 28 Rc,
30* Rc		 A789, A790 180 27.5 7.6
Duplex 2205 S32205 28 Rc,
30* Rc		 A789, A790 180 27.5 7.6

 

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Siddhagiri Metals & Tubes

Why Siddhagiri Metals & Tubes ?

  • PED 2014/68/ EU Approved Manufacturer for Steel Forgings.
  • Stockist, Wholesaler, Retailer and Trader of Steel Bars, Bolts and Nuts, Machined Components in Nickel Alloys, High Temperature Alloys, Super Alloys
  • Rank in Top 5 Exporter of Nickel Alloy Forgings in India and 73rd Position in Asia As Per Import and Export data of 2022
  • Supplying Oil and Gas Piping Products As Per Standard NACE MR0175 / ISO 15156 to the Netherlands, Tunisia, South Africa, Azerbaijan, Saudi Arabia, Alzeria, Morocco and Egypt Since 2002.
  • India's Largest Importer and Stockholder of Bolting Accessories in Ferrous and Non Ferrous Metals.

 

 

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