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Duplex Heat Exchanger Tubes

Duplex Heat Exchanger Tubes
Detail information of duplex heat exchanger tubes
Custom Sizes Available
Discount On bulk order
MTC EN 10204 3.1/3.2
Delivery Time
  • Belgium – 10 days
  • UAE – 5 days
  • Kuwait – 10 days
  • USA – 40 days
Duplex Heat Exchanger Tubes Ready Stock Available Sizes [OD]
  • 12 up to 40 mm 
  • 0.472 to 1.575 inch
Packing
  • Pack by bulk vessel or container
  • As your requirement
Surface Finish
  • Annealing
  • Polishing
  • Pickling 
Standards
  • ASTM A790
  • ASTM A789
Documentation
  • Packaging list
  • Quality assurance plan
  • Invoice
  • Heat treatment chart
  • Raw material test report
  • Material traceability report
Third Party Inspections
  • LLOYDS
  • IRS
  • IIB
  • TUV
  • DNV
  • IBR
  • BVIS
  • PDIL
  • SGS

DSS Boiler Tubing manufacturer in India

Which Challenges Duplex Steel Boiler Tube Face While Performing in Petrochemical Industry

  • Corrosion
  • Corrosion
  • Fouling
  • Tube vibration
  • Erosion
  • Pressure drops
  • Thermal stresses
  • High temperatures & creep
  • Scaling
  • Cracking and leakage

Table of Content

Manufacturer of Alloy 2205 Superheater Tubes and Duplex Tube suitable for very high and low temperatures

Specification of Duplex Tube

Material
  • Duplex 2205





Duplex Heat Exchanger Tubes Sizes
  • Outer Diameter: 10.29mm-812.80mm
  • Thickness: 1.00mm-60.00mm
  • Length: 6m or as customer demands
Manufacturing Shapes
  • Round
  • Square
  • Rectangle
  • Box Section


DSS Boiler Tubing Processing
  • Punching
  • Drilling
  • Milling
  • Stamping
  • Swaging
  • Reduction
  • Bending
  • Enlargment
  • Turning
Processing Service Provided By Naman Pipe
  • Punching
  • Cutting
  • Welding
  • Moulding
  • Bending
  • Decoiling


Manufacturing types
  • Seamless
  • ERW
  • Welded
  • EFW







Surface Finish
  • Satin
  • Hairline
  • Mirror finish

SAF 2205 Reheater Tubes Tolerance
  • OD: +/-0.2mm
  • Thickness: +/-10%
  • Length: +/-5mm
Length
  • Single Random Length(SRL)
  • Double Random Length (DRL)
  • Fix Length

Mechanical test of DSS 2205 Heat Transfer Tubes
  • 100% PMI tested
  • Tension test
  • Flange test
  • Flaring test
  • Reverse flattening test
  • Hardness test
Delivery Conditions
  • Quenched and Tempered
  • Cold Drawn
  • Hot Rolled
  • Normalizing Rolled
  • Normalizing Formed


Duplex Tubing Welding Methods
  • SAW welding
  • Plasma
  • GTAW welding
  • TIG


Duplex Heat Exchanger Tubes End
  • Plain End
  • Beveled End
Dimensional standard
  • ASME B36.19M

Alloy 2205 Superheater Tubes Hardness
  • 217 HB

Stockist of SAF 2205 Reheater Tubes in Mumbai, check Duplex Seamless Tube sizes

Dimensions Table of UNS S31803 Seamless Tube

Gauge Regular Wall (RW) mm Extra Thin Wall (XTW) mm Thin Wall (TW) mm Outside Diameter Tolerance mm Ultra Thin Wall (UTW) mm
30 0.064 - 0.089 0.304 - 0.317
29 0.064 - 0.089 o.330 - 0.342
28 0.076 - 0.102 0.355 - 0.368
27 0.089 - 0.115 0.064 - 0.089 0.406 - 0.419
26 0.089 - 0.114 0.457 - 0.469
25 0.115 - 0.140 0.089 - 0.114 0.508 - 0.520
24 0.114 - 0.140 0.089 - 0.114 0.558 - 0.571 0.051 - 0.102
23 0.140 - 0.165 0.089 - 0.114 0.635 - 0.647 0.051 - 0.102
22 0.140 - 0.165 0.077 - 0.102 0.096 - 0.121 0.711 - 0.723 0.051 - 0.102
21 0.140 - 0.165 0.102 - 0.127 0.812 - 0.825 0.051 - 0.102
20 0.108 - 0.165 0.108 - 0.134 0.901 - 0.914
19 0.166 - 0.216 0.070 - 0.108 0.102 - 0.140 1.054 - 1.079
18 0.191 - 0.241 0.083 - 0.121 0.127 - 0.165 1.257 - 1.282 0.051 - 0.102
17 0.177 - 0.229 0.083 - 0.127 0.115 - 0.152 1.460 - 1.485 0.057 - 0.102
16 0.204 - 0.254 0.096 - 0.133 0.127 - 0.165 1.638 - 1.663 0.070 - 0.121
15 0.204 - 0.254 0.096 - 0.134 0.127 - 0.165 1.816 - 1.841 0.070 - 0.121
14 0.216 - 0.292 0.114 - 0.165 0.165 - 0.229 2.082 - 2.133 0.076 - 0.134
13 0.267 - 0.343 0.191 - 0.267 2.387 - 2.438
12 0.267 - 0.321 2.743 - 2.749
11 0.293 - 0.368 0.216 - 0.292 3.023 - 3.073
10 0.318 - 0.394 0.216 - 0.292 3.378 - 3.429

Various Types of Duplex Tube

Duplex Steel Tube

Duplex Steel Tube

Duplex 2205 tube

Duplex 2205 tube

Duplex Heat exchanger tube

Duplex Heat exchanger tube

Duplex Boiler Tube

Duplex Boiler Tube

UNS S31803 Seamless Tube

UNS S31803 Seamless Tube

UNS S32205 Tube

UNS S32205 Tube

Duplex Seamless Tube

Duplex Seamless Tube

Duplex Instrument Tube

Duplex Instrument Tube

Duplex Tubing

Duplex Tubing

Duplex Coiled Tubing

Duplex Coiled Tubing

Duplex 2205 Boiler Tube

Duplex 2205 Boiler Tube

Duplex 2205 Welded Tube

Duplex 2205 Welded Tube

Alloy 2205 Tubing

Alloy 2205 Tubing

SAF 2205 Tube

SAF 2205 Tube

2205 Stainless Steel Capillary Tube

2205 Stainless Steel Capillary Tube

Duplex Tube For Heat Exchanger

Duplex Tube For Heat Exchanger

Duplex Stainless Steel Tube

Duplex Stainless Steel Tube

2205 Stainless Steel Tube

2205 Stainless Steel Tube

Duplex SS Tube

Duplex SS Tube

Duplex Tube Material

Duplex Tube Material

Duplex Seamless Tube

Duplex Seamless Tube

Duplex Welded Tube

Duplex Welded Tube

Duplex Tubes

Duplex Tubes

UNS S31803 Tube

UNS S31803 Tube

Duplex Steel Tubing

Duplex Steel Tubing

Duplex Stainless Steel Heat Exchanger Tubes

Duplex Stainless Steel Heat Exchanger Tubes

Duplex Condenser Tubing

Duplex Condenser Tubing

Stockist of Duplex Welded Tube and DSS 2205 Heat Transfer Tubes in various thickness

Duplex 2205 Heat Exchanger Tubes Wall Thickness Tolerance

Duplex Heat Exchanger Tubes OD class 1 and 2 class 3
Tolerances Up to 2 2,020 +0.20
More than 2 +10% from WT + 15% to 10% from WT

Duplex Boiler Tube Chemical Composition

S31803 / S32205 C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 - 3.5 22.0 - 23.0 0.03 4.5 - 6.5 0.14 - 0.2 Bal

Duplex Seamless Tube Mechanical Properties

S31803 / S32205 Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi - 80000 , MPa - 550 Psi - 116000 , MPa - 800 15 %

Duplex Welded Tube Equivalent Grade

STANDARD UNS WERKSTOFF NR.
DSS S31803 S31803 1.4462
DSS S32205 S32205 1.4462
Exporter and supplier of Duplex Tubing for Shell And Tube Heat Exchangers up to 1,000 PsiG Pressure rating

Duplex Steel Super Heater Tube Pressure Rating

Size Static  bend radius mm 6 12 20 32 50 80 125 250
Nominal Size   Inch 1/4 1/2 3/4 1¼ 2 3 5 10
Double Braid Max. working pressure mm 100 200 200 250 350 450 660 1220
Dynamic bend radius   mm 25 50 70 110 175 205 280 560
Burst  pressure bar 369 210 153 100 73 42 37 16
Max. working pressure mm 100 200 200 250 350 450 660 1220
Single Braid Dynamic bend radius   mm 25 50 70 110 175 205 280 560
Burst  pressure bar 230 132 96 63 46 27 24 10
Test pressure   bar 154 88 64 42 31 18 16 6.5
Static  bend radius bar 616 352 256 168 124 72 64 26

Ordering Information of 2205 Stainless Steel Tubing

Orders for Duplex Heat Exchanger Tubes under this specification should include the following, as needed, to adequately describe the desired material:

  • Name of product (welded or seamless tubes)
  • Grade
  • Size
  • Length (specific or random)
  • Quantity (feet, metres, or number of lengths)
  • Test report required
  • Optional requirements (see Section 10 for hydrostatic or nondestructive electric tests for product analysis).

Duplex Heat Exchanger Tubes Weight Chart

OD
inches		 D/t Ratio WT
inches		 Tube Cross Sectional Area (in2) ID inches Internal Area (in2)
0.250 12.50 0.020 0.0145 0.210 0.0346
0.250 7.14 0.035 0.0236 0.180 0.0254
0.250 5.10 0.049 0.0309 0.152 0.0181
0.250 8.93 0.028 0.0195 0.194 0.0296
0.250 3.85 0.065 0.0378 0.120 0.0113
0.375 18.75 0.020 0.0223 0.335 0.0881
0.375 13.39 0.028 0.0305 0.319 0.0799
0.375 10.71 0.035 0.0374 0.305 0.0731
0.375 7.65 0.049 0.0502 0.277 0.0603
0.375 5.77 0.065 0.0633 0.245 0.0471
0.500 25.00 0.020 0.0302 0.460 0.1662
0.500 17.86 0.028 0.0415 0.444 0.1548
0.500 14.29 0.035 0.0511 0.430 0.1452
0.500 10.20 0.049 0.0694 0.402 0.1269
0.500 7.69 0.065 0.0888 0.370 0.1075
0.500 6.02 0.083 0.1087 0.334 0.0876
0.625 31.25 0.020 0.0380 0.585 0.2688
0.625 22.32 0.028 0.0525 0.569 0.2543
0.625 17.86 0.035 0.0649 0.555 0.2419
0.625 12.76 0.049 0.0887 0.527 0.2181
0.625 9.62 0.065 0.1144 0.495 0.1924
0.625 7.53 0.083 0.1413 0.459 0.1655
0.625 6.58 0.095 0.1582 0.435 0.1486
0.625 5.73 0.109 0.1767 0.407 0.1301
0.750 26.79 0.028 0.0635 0.694 0.3783
0.750 21.43 0.035 0.0786 0.680 0.3632
0.750 15.31 0.049 0.1079 0.652 0.3339
0.750 11.54 0.065 0.1399 0.620 0.3019
0.750 9.04 0.083 0.1739 0.584 0.2679
0.750 7.89 0.095 0.1955 0.560 0.2463
0.750 6.88 0.109 0.2195 0.532 0.2223
0.750 6.25 0.120 0.2375 0.510 0.2043
0.875 43.75 0.020 0.0537 0.835 0.5476
0.875 31.25 0.028 0.0745 0.819 0.5268
0.875 25.00 0.035 0.0924 0.805 0.5090
0.875 17.86 0.049 0.1272 0.777 0.4742
0.875 13.46 0.065 0.1654 0.745 0.4359
0.875 10.54 0.083 0.2065 0.709 0.3948
0.875 9.21 0.095 0.2328 0.685 0.3685
0.875 8.03 0.109 0.2623 0.657 0.3390
0.875 7.29 0.120 0.2846 0.635 0.316L7
1.000 35.71 0.028 0.0855 0.944 0.6999
1.000 28.57 0.035 0.1061 0.930 0.6793
1.000 20.41 0.049 0.1464 0.902 0.6390
1.000 15.38 0.065 0.1909 0.870 0.5945
1.000 12.05 0.083 0.2391 0.834 0.5463
1.000 10.53 0.095 0.2701 0.810 0.5153
1.000 9.17 0.109 0.3051 0.782 0.4803
1.000 8.33 0.120 0.3318 0.760 0.4536
1.000 7.46 0.134 0.3646 0.732 0.4208
1.250 35.71 0.035 0.1336 1.180 1.0936
1.250 25.51 0.049 0.1849 1.152 1.0423
1.250 19.23 0.065 0.2420 1.120 0.9852
1.250 15.06 0.083 0.316L3 1.084 0.9229
1.250 13.16 0.095 0.3447 1.060 0.8825
1.250 11.47 0.109 0.3907 1.032 0.8365
1.250 10.42 0.120 0.4260 1.010 0.8012
1.250 9.33 0.134 0.4698 0.982 0.7574
1.500 42.86 0.035 0.1611 1.430 1.6061
1.500 30.61 0.049 0.2234 1.402 1.5438
1.500 23.08 0.065 0.2930 1.370 1.4741
1.500 18.07 0.083 0.3695 1.334 1.3977
1.500 15.79 0.095 0.4193 1.310 1.3478
1.500 13.76 0.109 0.4763 1.282 1.2908
1.500 12.50 0.120 0.5202 1.260 1.2469
1.500 11.19 0.134 0.5750 1.232 1.1921
1.500 10.14 0.148 0.6286 1.204 1.1385
1.750 50.00 0.035 0.1886 1.680 2.2167
1.750 40.82 0.049 0.3003 1.902 2.8413
1.750 26.92 0.065 0.3441 1.620 2.0612
1.750 21.08 0.083 0.4347 1.584 1.9706
1.750 18.42 0.095 0.4939 1.560 1.9113
1.750 16.06 0.109 0.5619 1.532 1.8433
1.750 14.58 0.120 0.6145 1.510 1.7908
1.750 13.06 0.134 0.6803 1.482 1.7250
1.750 11.82 0.148 0.7449 1.454 1.6604
1.750 10.61 0.165 0.8216 1.420 1.5837
2.000 57.14 0.035 0.2161 1.930 2.9255
2.000 40.82 0.049 0.3003 1.902 2.8413
2.000 30.77 0.065 0.3951 1.870 2.7465

Coatings of ASTM A789 UNS S32205 Tube

  • Curran 1000 T Hybrid Epoxy
  • coating with HVTS
  • Phenol Epoxy
  • Sakaphen- Shell and tube heat exchanger lining
  • Novolac Epoxy
  • Curran 1000T

All tubes must be clear of excessive mill scale and inspection-ready. A trace of oxidation will not be considered scale. Any particular finish requirements must be agreed upon between the maker and the purchaser.

Available Testing of Duplex Coiled Tubing

  • Mechanical Reports
  • PMI Test Reports
  • Chemical Reports
  • Visual Inspection Reports
  • Fumigation Certificates
  • Raw Materials Certificate
  • Moisture testing
  • Destructive Test Report
  • Heat Treatment Charts
  • Non Destructive Test Reports
  • NABL Approved Lab Reports

Testing Terms and Procedure

  • Analyze Chemical Composition Direct Reading with 100 percent PMI and one tube from each heat Spectrometer
  • Solution and Heat Treatment Bright Annealing / Annealing
  • Deburring and cutting to appropriate length
  • Ultrasonic wall thickness measurement
  • Tension, flattening, flaring, and hardness tests are examples of mechanical tests.
  • Standard request for Impact Test
  • Intergranular Corrosion Test and Grain Size Test
  • Surface Quality Testing with Visual and Endoscope
  • 100% hydrostatic testing and 100% eddy current testing
  • The MPS applies to the ultrasonic test

Marking & Packing Of Alloy 2205 Tubing

  • Marking according to MPS and Standard
  • Tubes Ends with Caps according to PO
  • Steel Racks Package
  • In Plywood Cases With Plastic Paper Protect
  • Hexagonal packing in Bundles
  • In Seaworthy Wooden Cases With Plastic Paper protect

Technical parameters of DSS U-bent heat exchanger tubes

  • Outside Diameter: 12.7- 38 mm
  • Bending radii: 1.5 x OD up to 1,250 mm.
  • Minimum bending radii: OD over 28 mm after agreement.
  • Leg length: 1,000 mm to 12,000 mm.
  • Heat treatment for radii: up to 1,000 mm

Features & Benefits Of SAF 2205 Tube Material

  • High resistance to corrosion
  • Suitable for usage in extreme situations, such as seawater, and has a long service life.
  • Duplex Heat Exchanger Tubes with twice the strength of austenitic stainless steels
  • Stress corrosion cracking resistance has been improved.
  • Thermal expansion is minimal.
  • Weldability is excellent.
  • Long lifespan and high cost-effectiveness
  • Excellent mechanical properties
  • Excellent resistance to intergranular corrosion

Advantages of Duplex Steel S32205 U Tube While Buying From India

  • Provide an extended life span
  • Offer excellent corrosion resistance
  • Reduce the amount of surface area needed by accommodating high steam pressure.
  • Minimize the need for an inventory of spare parts
  • Provide high heat transfer efficiency