• sales@siliconsteelalloys.com
  • Mon - Fri: 10:00 AM - 6:00 PM

UNS S32205 Tubing, Duplex Steel UNS S31803 Seamless Pipe, Duplex Steel 2205 Seamless Pipe.


Silicon Steels is a renowned supplier of the Duplex 2205 Seamless Pipes as well as a manufacturer. ASTM A790 Duplex 2205 Welded Pipe, aerated ferrite steel, can be used in corrosive conditions and can withstand localized corrosion such as stress corrosion cracking and tearing. Our Duplex Seamless S31803 tubes are extremely weldable and have low temperature toughness. Such seamless Duplex 2205 tubes are resistant to stress corrosion and overall corrosion.

UNS S32205 seamless Duplex Steel pipes have higher strength and are capable of easily handling pressures. Stored containers, pressurizing structures and structural systems are other technologies. Duplex UNS S32205 pipe benefits are greater power, greater resistance to corrosion, greater durability of metallurgy and superior properties after welding. UNS S31803 Welded Pipe is increasingly ferritic and completely ferritical, with high temperatures above 2000 degrees F, just under melting point. Usually, Duplex Steel UNS S32205 pipes are formed by 50 to 60 percent austenite, as seen on the picture. Duplex Steel S 31803 Pipes should be evenly heated and controlled in the range of 1750 degrees – 2250 degrees F when heated forming is required.


SeamlessWelded Pipe making
SeamlessWelded Pipe Process
duplex steel 2205/ 31803 seamless pipe supplier stockist

Duplex 2205 Seamless Pipe dealer, Alloy 2205 Seamless Round Pipe supplier, UNS S32205 Seamless Pipe exporter.

Duplex Steel S32205 Seamless pipes in comparison to other grades of stainless steel combine improved resistance to stress corrosion cracking, breaking, crevice corrosion and high strength. The austenitic ferritic stainless steel Duplex Steel S32205 Welded Pipes is high corrosion and resistant. Whereas, the round pipes Duplex Steel 2205 pipe are also offered to our customers in various sizes and shapes.

Duplex 2205/s31803 Seamless Welded Pipes are made up of alloys that have both austenitic and ferritic properties. These properties allow these pipes to withstand corrosion. These pipes also have excellent tensile strength. The 2205 Seamless Welded Pipes consist of about 22 percent chromium, 3 percent molybdenum, and 5 to 6 percent nickel.

Duplex 2205/s31803 Seamless Welded Pipes can withstand a temperature up to 572 degrees Fahrenheit. If the pipes are left with more than the mentioned temperature, it might lead to the embrittlement of the pipes. As the chemical composition consists of these elements, they are also very resistant towards corrosion pitting and corrosion cracking which could be beneficial at a temperature ranging from 302 degrees Fahrenheit. There also is a certain amount of ferrite present in this alloy, which enhances the performance of these pipes. Thus, these pipes can be used in environments where they could be subjected to unfavorable conditions. These are also very beneficial in areas where chloride-related stress cracking can occur, as these pipes would work great in those conditions.

The following is a list of some of the most important features and advantages offered by the Duplex 2205:

Great strength: The yield strength of Duplex 2205 is about twice as high as that of typical austenitic stainless steels, making it a good material option for high-stress levels.
The chloride stress corrosion cracking, pitting, and crevice corrosion that Duplex 2205 is susceptible to are significantly reduced.
Excellent weldability: Duplex 2205 may be effectively welded using normal welding processes. This property contributes to the material's excellent corrosion resistance.Duplex 2205 may be welded using normal welding processes with excellent results. This property allows for excellent weldability.
High erosion resistance: Due to its great resistance to erosion and erosion corrosion, Duplex 2205 is suitable for use in hostile situations. This property makes it an excellent choice for construction purposes.
Excellent formability: Duplex 2205 may be readily cold-worked and molded, making it ideal for various applications thanks to its excellent formability.

It is important to note that Duplex 2205 is more costly than other types of stainless steel alloys because of its high percentage of nickel. However, due to its great strength and exceptional corrosion resistance, it is a perfect material for a broad range of applications that place significant demands on the material.


Also Look Our:


Specification :

Specifications ASTM A790 / ASME SA790, ASTM A789 / ASME SA A789
Seamless Pipes & Tubes Sizes 1 / 2" NB - 8" NB
Welded Pipes & Tubes Sizes 6" NB - 24" NB
Outer Diameter 6.0-630mm
Schedule SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS
Thickness 0.3mm – 50 mm
Type Seamless / ERW / Welded/ Fabricated
Form Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes
Length Single Random, Double Random & Cut Length
End Plain End, Beveled End, Treaded

Types of Duplex 2205 Pipe available :


 Pipe
Duplex Steel 2205 Seamless Pipe
Welded Pipe
UNS S31803 Welded Pipe
 Pipe
ASME SA240 Seamless Pipe
Hollow Pipe
Werkstoff Nr. 1.4462 Hollow Pipe

Round Pipe
Duplex Steel 2205 Round Pipe
 Square Pipe
ASTM A240 Duplex Steel Square Pipe
Rectangular Pipe
Werkstoff Nr. 1.4462 Rectangular Pipe
 Custom Pipe
Saf 2205 Custom Pipe

cold drawn seamless Pipe
ASME SA240 Seamless Pipe
 Thick Wall Pipe
Saf 2205 Thick Wall Pipe
Metal Plumbing Pipe
UNS S31803 Seamless Pipe
pile of rusty pipe
Saf 2205 Seamless Pipe

Metal  Pipe
Werkstoff Nr. 1.4462 Seamless Pipe
Pipe on ceiling wall
UNS S31803 MA Seamless Pipe
Exhaust Pipe
Duplex Steel 2205 Exhaust Pipe
Thin wall Pipe
ASTM A240 Seamless Pipe

Types of Duplex 2205 Tube available :


 Tube
Duplex Steel 2205 Seamless Tube
Welded Tube
UNS S31803 Welded Tube
ASME SA240  Tube
ASME SA240 Seamless Tube
Werkstoff Nr. 1.4462 Hollow Tube
Werkstoff Nr. 1.4462 Hollow Tube

Duplex Steel 2205  Round Tube
Duplex Steel 2205 Round Tube
ASTM A240 Duplex Steel  Square Tube
ASTM A240 Duplex Steel Square Tube
Werkstoff Nr. 1.4462 Rectangular Tube
Werkstoff Nr. 1.4462 Rectangular Tube
Saf 2205  Custom Tube
Saf 2205 Custom Tube

ASME SA240  Tube
ASME SA240 Seamless Tube
Saf 2205  Thick Wall Tube
Saf 2205 Thick Wall Tube
UNS S31803  Tube
UNS S31803 Seamless Tube
Saf 2205  Tube
Saf 2205 Seamless Tube

Werkstoff Nr. 1.4462  Tube
Werkstoff Nr. 1.4462 Seamless Tube
UNS S31803 MA  Tube
UNS S31803 MA Seamless Tube
Duplex Steel 2205  Exhaust Tube
Duplex Steel 2205 Exhaust Tube
ASTM A240  Tube
ASTM A240 Seamless Tube

Corrosion Resistance:

Duplex 2205 has good resistance to corrosion, particularly chloride-induced stress corrosion cracking. This property makes it resistant to chloride-induced stress corrosion cracking. In addition to being resistant to pitting and crevice corrosion, it may also be used in a wide range of environments known to be corrosive. A high percentage of chromium and molybdenum in the alloy gives it an outstanding resistance to general corrosion. Meanwhile, the percentage of nickel in the alloy enhances its resistance to stress corrosion cracking.

The corrosion resistance of Duplex 2205 is about equal to the corrosion resistance of alloy 317L, which is superior to the corrosion resistance of typical austenitic stainless steel grades like 304 and 316. Compared to the microstructure of other stainless steel alloys, the duplex structure of Duplex 2205 provides higher resistance to corrosion.

Even though Duplex 2205 has great corrosion resistance, it is nevertheless possible for it to corrode in certain situations. This is especially true when chlorides or other aggressive chemicals are present. The necessary procedures must be followed throughout the selection, manufacture, installation, and maintenance of the alloy in order to achieve the desired result of the alloy's long-term performance in corrosive environments.


Heat Resistance:

Although Duplex 2205 has considerable heat resistance, it does not possess the same level of heat resistance as other stainless steel alloys. It is heat resistant up to around 260 degrees Celsius (500 degrees Fahrenheit); however, its heat resistance will decrease as the temperature rises. The duplex microstructure of duplex 2205 results in lower heat resistance than that of austenitic stainless steel grades such as 304 and 316.

Duplex 2205 is ideal for a wide variety of applications in high-temperature environments. This alloy is often used in equipment like heat exchangers, pressure vessels, and other devices that need great strength and resistance to corrosion.

Notably, the heat resistance of Duplex 2205 may be impacted by other factors, including the presence of impurities, the pace at which the material is heated and cooled, and the kind of thermal treatment that is done to the material. To assure the alloy's long-term performance in high-temperature conditions, one must carefully consider its selection, manufacture, installation, and maintenance techniques.


Equivalent Grade :

STANDARD UNS WERKSTOFF NR.
Duplex 2205/ S31803 S31803 1.4462

Chemical Composition :

Grade C Mn Si P S Cr Mo Ni N Fe
Duplex Steel S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22 – 23 3 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min
Duplex Steel S32205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21 – 23 2.50 - 3.50 4.50 – 6.50 0.8 – 0.20 63.54 min

Dimensions of Duplex 2205 Pipe

seamless pipe dimensions

Duplex 2205 Pipe Weight Chart

NPS Outside Diameter Wall Thickness   Weight Weight
in mm in mm Sched kg/Mtr Lb/ft
1/2″ 0.840 21 0.109 2.769 40 STD 1.268 0.851
      0.147 3.734 80 STD 1.621 1.088
3/4″ 1.050 27 0.113 2.870 40 STD 1.684 1.131
      0.154 3.912 80 STD 2.195 1.474
1″ 1.315 33 0.133 3.378 40 STD 2.501 1.679
      0.179 4.547 80 STD 3.325 2.172
1 1/4″ 1.660 42 0.140 3.556 40 STD 3.385 2.273
      0.191 4.851 80 STD 4.464 2.997
1 1/2″ 1.900 48 0.145 3.683 40 STD 4.048 2.718
      0.200 5.080 80 STD 5.409 3.361
2″ 2.375 60 0.154 3.912 40 STD 5.441 3.653
      0.218 5.537 80 STD 7.480 5.022
2 1/2″ 2.875 73 0.203 5.516 40 STD 8.629 5.793
      0.276 7.010 80 STD 11.411 7.661
3″ 3.500 89 0.216 5.486 40 STD 11.284 7.576
      0.300 7.620 80 STD 15.272 10.253
4″ 4.500 114 0.237 6.020   16.073 10.790
      0.337 8.560   22.318 14.983
6″ 6.625 168 0.188 4.775   19.252 12.924
      0.203 5.516   20.739 13.923
      0.219 5.563   22.318 14.983
      0.250 6.350   25.354 17.021
      0.280 7.112 40 STD 58.263 18.974
      0.312 7.925   31.334 21.036
      0.375 9.525   37.285 25.031
      0.432 10.973 80 XHY 42.561 28.573
      0.500 12.700   48.719 32.708
8″ 8.625 219 0.188 4.775   25.233 16.940
      0.203 5.156   27.198 18.259
      0.219 5.563   29.286 19.661
      0.250 6.350 20 33.308 22.361
      0.277 7.036 30 36.786 24.696
      0.322 8.179 40 42.352 28.554
      0.375 9.525   49.216 33.041
      0.406 10.312 60 53.085 35.638
      0.500 12.700 80 XHY 64.627 43.388
10″ 10.750 273 0.188 4.775   31.588 21.207
      0.219 5.563   36.689 24.631
      0.250 6.350 20 41.759 28.035
      0.307 7.798 30 51.002 34.240
      0.344 8.738   56.946 38.231
      0.365 9.271 40 STD 63.301 40.483
      0.438 11.125   71.852 48.238
      0.500 12.700 60 XHY 81.530 54.735
      0.594 15.088 80 95.969 64.429
12″ 12.750 324 0.188 4.775   37.570 25.222
      0.219 5.563   43.657 29.309
      0.250 6.350   49.713 33.375
      0.281 7.137   55.739 37.420
      0.312 7.925   61.735 41.445
      0.375 9.525   73.824 49.562
      0.406 10.312   79.727 53.525
      0.500 12.700   97.438 65.415
      0.562 14.275   108.966 73.154
14″ 14.000 356 0.188 4.775   41.308 27.732
      0.219 5.563   48.012 32.233
      0.250 6.350 20 54.685 36.713
      0.281 7.137   61.327 41.172
      0.312 7.925   67.939 45.611
      0.375 9.525 STD 81.281 54.568
      0.438 11.125 40 94.498 63.441
      0.500 12.700 XHY 107.381 72.090
      0.625 15.875   132.983 89.278
16” 16.000 406 0.188 4.775   47.290 21.748
      0.219 5.563   54.980 36.910
      0.250 6.350 10 62.639 42.053
      0.281 7.137   70.268 47.174
      0.312 7.925 20 77.866 52.275
      0.344 8.738   85.677 57.519
      0.375 9.525

30

STD

93.213 62.578
      0.438 11.125   108.433 72.797
      0.500 12.700

40

XHY

123.289 82.770
18″ 18.000 457 0.219 5.563   61.948 41.588
      0.250 6.350   70.593 47.393
      0.281 7.137   79.208 53.176
      0.312 7.925 20 87.792 58.939
      0.375 9.525 STD 105.144 70.588
      0.438 11.125 30 122.369 82.152
      0.500 12.700 XHY 139.198 93.450
      0.562 14.275 40 155.904 104.666
      0.625 15.875   172.754 115.978
20″ 20.000 508 0.250 6.350   78.547 52.733
      0.282 7.163   88.458 59.386
      0.312 7.925   97.719 65.604
      0.375 9.525 20 STD 117.075 78.598
      0.438 11.125   136.305 91.508
      0.500 12.700 30 XHY 155.106 104.130
      0.594 15.088 40 183.378 123.110
      0.625 15.875   192.640 129.328
      0.688 17.475   211.368 141.901
24″ 24.000 610 0.250 6.350   94.456 63.413
      0.281 7.137   106.029 71.183
      0.312 7.925   117.573 18.932
      0.375 9.525 20 STD 140.938 64.618
      0.438 11.125   164.176 110.219
      0.500 12.700 XHY 186.923 125.490
      0.625 15.875   232.410 156.028
      0.688 17.475 40 255.148 171.293
      0.750 19.050   277.401 186.233
30″ 30.000 762 0.250 6.350   118.318 79.433
      0.281 7.137   132.851 89.189
      0.312 7.925 10 147.353 98.925
      0.375 9.525 STD 176.731 118.648
      0.438 11.125   205.983 138.286
      0.500 12.700 20 XHY 234.647 157.530
      0.625 15.875 30 292.066 196.078
      0.688 17.475   320.817 215.380
      0.750 19.050   348.988 234.293
36″ 36.000 914 0.250 6.350   142.180 95.453
      0.281 7.137   159.672 107.196
      0.312 7.925 10 177.133 118.918
      0.375 9.525 STD 215.525 142.678
      0.438 11.125   247.790 166.353
      0.500 12.700 20 XHY 282.372 198.570
      0.625 15.875   351.723 236.128
     

0.688

17.475   386.487 259.467
     

0.750

19.050   420.576 282.353
42″ 42.000 1067 0.312 7.925   206.914 138.911
      0.375 9.525 STD 248.319 166.708
      0.500 12.700 XHY 33.097 221.610
      0.750 19.050   492.163 330.413
48″ 48.000 1219 0.375 9.525 STD 284.112 190.738
      0.438 11.125   331.404 222.487
      0.500 12.700 XHY 377.822 253.650
      0.750 19.050   563.750 378.473
      0.875 22.225   655.969 440.383

Imperial Dimensions of Duplex Stainless Pipe Sizes

Pipe OD
mm
Pipe WT
mm
in. Sch Kg/m
13.72 1.65 1/4 10S 0.50
13.72 2.24 1/4 40S 0.64
13.72 3.02 1/4 80S 0.81
17.15 1.65 3/8 10S 0.64
17.15 2.31 3/8 40S 0.86
17.15 3.20 3/8 80S 1.12
21.34 2.11 1/2 10S 1.02
21.34 2.77 1/2 40S 1.29
21.34 3.73 1/2 80S 1.65
26.67 2.11 3/4 10S 1.30
26.67 2.87 3/4 40S 1.71
26.67 3.91 3/4 80S 2.23
33.40 2.77 1 10S 2.13
33.40 3.38 1 40S 2.54
33.40 4.55 1 80S 3.29
33.40 6.352) 1 160 4.30
42.16 2.77 10S 2.73
42.16 3.56 40S 3.44
42.16 4.85 80S 4.53
42.16 6.352) 160 5.69
48.26 2.77 10S 3.16
48.26 3.68 40S 4.11
48.26 5.08 80S 5.49
60.33 2.77 2 10S 3.99
60.33 3.91 2 40S 5.52
60.33 5.54 2 80S 7.60
60.33 8.742) 2 160 11.29
73.03 3.05 10S 5.35
73.03 5.16 40S 8.77
73.03 7.01 80S 11.59
88.90 3.05 3 10S 6.56
88.90 5.49 3 40S 11.47
88.90 7.62 3 80S 15.51
88.90 11.132) 3 160 21.67
101.60 3.05 10S 7.53
101.60 5.74 40S 13.78
101.60 8.08 80S 18.92
114.30 3.05 4 10S 8.50
114.30 6.02 4 40S 16.32
114.30 8.56 4 80S 22.67
114.30 13.492) 4 160 34.05
141.30 6.55 5 40S 22.10
141.30 9.53 5 80S 31.44
141.30 15.882) 5 160 49.87
168.28 3.4 6 10S 14.04
168.28 7.11 6 40S 28.69
168.28 10.97 6 80S 43.21
168.28 14.27 6 120 54.75
168.28 18.262) 6 160 68.59
219.08 8.18 8 40S 43.20
219.08 12.7 8 80S 65.63
219.08 18.23 8 120 91.30
219.08 23.012) 8 160 112.97

Processing:-

Welding : Duplex 2205 has excellent weldability and can be easily welded using common welding techniques, such as Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), and Shielded Metal Arc Welding. Duplex 2205 also has a high melting point, making it a good choice for high-temperature applications (SMAW). When welding more significant portions, it is especially important to maintain tight control over the heat input so that cracking does not occur. Following the welding process, welds made with Duplex 2205 should be exposed to a heat treatment to achieve the highest possible level of corrosion resistance.

Heat Treatment: Although heat treating Duplex 2205 to increase its mechanical qualities is not often necessary, it is possible to do so. If heat treatment is necessary, solution annealing needs to be followed by quick cooling. A treatment that relieves stress may also be performed on the alloy; however, to prevent cracking, this procedure must be carefully controlled.

Hot forming:  Hot forming should be carried out at temperatures ranging from 1700 degrees Fahrenheit (925 degrees Celsius) to 2250 degrees Fahrenheit (1230 degrees Celsius), with the appropriate heating and cooling rates, in order to achieve the highest possible levels of strength and resistance to corrosion.

Cold-Forming: Standard cold-forming methods, such as cold rolling and drawing, may be used to cold-form Duplex 2205 into the desired shape. In order to avoid cracking to provide the highest possible level of strength and corrosion resistance, cold forming must occur at room temperature or below.

Machinability: Compared to other types of stainless steel alloys, Duplex 2205 is more difficult to process. Its machinability may be improved using appropriate cutting parameters and tool geometries, although caution is still required to prevent cracking.

Fabrication: Duplex 2205 has a high level of fabricability and may be readily worked with using traditional fabrication processes like bending, stamping, and shaping. Fabrication Controlling the manufacturing process properly is essential if one wants to avoid cracking and guarantee maximum strength and corrosion resistance. The great strength of the alloy makes it suited for high-stress applications, yet, it is more difficult to work with than other stainless steel alloys because of its high strength.

Alloy 2205 Pipe Pressure Rating

Pipe O.D.
(In.)
Wall Thickness Of Pipe (Inches)
.028 .035 .049 .065 .083 .095 .109 .120
Working Pressure (Psig)
1/8 7900 10100            
1/4 3700 4800 7000 9500        
5/16   3700 5400 7300        
3/8   3100 4400 6100        
1/2   2300 3200 4400        
3/4     2200 3000 4000 4600    
1       2200 2900 3400 3900 4300

Welded Pipe Wall Thickness

Types Out diameter Wall thickness Length
NB Sizes (in stock) 1/8” ~ 8” SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 Upto 6 Meters
Duplex 2205 Seamless Pipe (Custom Sizes) 5.0mm ~ 203.2mm As per requirement Upto 6 Meters
Duplex 2205 Welded Pipe (in Stock + Custom Sizes) 5.0mm ~ 1219.2mm 1.0 ~ 15.0 mm Upto 6 Meters

AVAILABLE FORM of Duplex Steel 2205 Seamless Pipes:

Sch 40 Seamless Pipe
Duplex 2205 Sch 40 Seamless Pipe
Sch 160 Tube
Saf 2205 Sch 160 Tube
2B Finish Round Pipe
Werkstoff Nr. 1.4462 2B Finish Round Pipe
Electropolished Square Pipe
2205 Duplex Steel Electropolished Square Pipe

Rectangle Pipe
DIN 1.4462 Rectangle Pipe
Galvanized IBR Pipe
ASTM A312 UNS S31803 Galvanized IBR Pipe
Sch 40 Fabricated Pipe
ASTM A312 Duplex 2205 Sch 40 Fabricated Pipe
2B Finish Cold Drawn Seamless Tubes
  • Werkstoff Nr. 1.4462 2B Finish Cold Drawn Seamless Tubes
  • Our Available Products


    Applications :

    These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

    application of silicon steel

    Packaging Used By Us :

    packaging and uses of silicon steel

    We ship our stainless steel metal products in industry leading packaging designed to ensure your order reaches its destination safely. We offer multiple packaging options to meet your specific requirements. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging. We pack our goods in numerous ways based on the products. We pack our products in multiple ways.


    Testing Used By Us :

    To specify the various physical and mechanical properties of the finished product, various tests, both destructive and nondestructive, are performed. Metallurgical, hardness, hardenability, tension, ductility, compression, fatigue, impact, wear, corrosion, creep, machinability, radiography, magnetic particle, ultrasonic, and eddy current are some of the major tests that are performed by quality control personnel. Metallurgical testing is used to determine the quality of steel by analyzing the microstructure of a sample under a microscope. A cross section of a sample is first highly polished and then examined at a magnification from 100-500 diameters. The microstructure of steel consists of grains of different compositions and sizes.

    Testing Used By Silicon steel