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Duplex Pipe

A duplex grade is a microstructure consisting of austenitic and ferritic grades. A Duplex Pipe is designed with a superior chemical concentration containing nickel, chromium, molybdenum, and other constituents. This gives the Duplex 2205 Pipe superior resistance to corrosive and oxidative media across stress-induced environments. These pipes also showcase enhanced resistance to pitting by acids and crevice corrosion. The Duplex Stainless Steel Pipe exhibits twice the strength of normal steel grades. These pipes work well in temperatures ranging from -50 degrees F up to 600 degrees F in the system. A 2205 Stainless Steel Pipe possesses superior strength and offers good weldability and workability across different systems. These piping grades have a lower thermal expansion area and are generally annealed at temperatures of 1900 degrees F.

A Duplex Stainless Steel Tube is designed possessing superior mechanical and physical properties. These tubes possess a density of 7.82 kg/m3 and have an elastic modulus of 190Gpa. The Duplex 2205 Tube is produced with a minimum tensile strength of 621mpa. These tubes have minimum yield strength of 448mpa and can be easily elongated by 25% in the system. Duplex 2205 Tubing showcases a superior hardness of Brinell 239HB max. Any bending of this tubing requires special equipment with a larger capacity. The Duplex Tube is a common feature in different processing equipment, chemical items, oil and gas exploration, and marine environments.

The Alloy 2205 Pipe is manufactured in three configurations namely seamless, welded, and erw. Each of the types has its own set of features that set them apart from the other. SA 789 UNS S31803 Duplex Seamless Pipe is the strongest grade designed by passing hot steel billets through extruded metal to precisely shape them. These pipes are expensive but have a higher load-bearing capacity. ASTM A790 UNS S31803 Duplex Welded Pipe is a low-cost alternative to this pipe. These pipes have lower strength as they are designed by welding pieces of sheets or strips in place. An ASTM A789 UNS S31803 ERW Pipe is a module that is manufactured by passing electric current and joining the pieces of metal in place. To know more about the Duplex Steel Tube or its pricing, contact us or visit any of our outlets for information.

 

Manufacturer of Duplex 2205 Tube in India according to ASTM A789 UNS S31803

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Duplex Pipe supplier

Duplex 2205 Pipe and Duplex Stainless Steel Tube manufacturer in India, find exact size at LG Pipes & Tubes and save you time and wastage of material

Duplex Tube Specification

Duplex 2205 Pipes Standard AISI, DIN, EN, GB, JIS, ASTM, ASME UNS S31803 Pipe
Duplex 2205 Tube Specifications ASTM A 790 ASME SA 790
SA 789 UNS S31803 Welded Pipes size 5.0 mm - 1219.2 mm
ASTM A790 UNS S31803 Seamless Pipes Outer Diameter 6.00 mm OD up to 250 mm OD, Sizes up to 12” NB
Thickness of Duplex Pipes 0.3mm - 50 mm
ASTM A789 UNS S31803 EFW Pipes size 5.0 mm - 1219.2 mm
Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Duplex Tube Welded pipes Size 6.35 mm OD To 152 mm OD
UNS S31803 smls pipes Size 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN
Duplex Stainless Steel Pipes Schedule SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS A790 Pipe Supplier
Duplex Stainless Steel Tube Length Double Random, Single Random, Standard & Cut length
Alloy 2205 Pipes Form Hydraulic, Round, Straight Pipes, Square, Hollow, Coiled, U Shape etc.
2205 Stainless Steel Pipes Finish Polished, Annealed and Pickled, Bright and Annealed, MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish,etc
Duplex Tubing End Plain End, Beveled End, Treaded.
Duplex 2205 Tubing wall thickness 0.020 in – 0.220 in
duplex tube material Marking All UNS S31803 Pipes are marked as follows: Grade, Standard, OD, Thickness, Length, Heat No. and Supplier / Manufacturer’s Name
duplex steel tube Type UNS S31803 Seamless, ERW, EFW, Welded, Fabricated, CDW, DOM, CEW Pipes
Supplier provide Value Added Services Draw and Expansion as per required Size and Length, Polish (Electro and Commercial) Annealed and Pickled Bending, Machining Etc.
Material Test Certificates (MTC) Material Test Certificates (MTC) as per EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2, 100% Radiography Test Report, Raw Materials Certificate, Third Party Inspection Report, Fumigation Certificates, Heat Treatment Charts, UNS S31803 pipes HS Code Commercial Invoice, Form A for Generalized System of Preferences (GSP), Manufacturer Test Certificate , Laboratory Test Certificate from Govt. Approved Lab.
We can also cut, thread, and groove UNS S31803 Pipes to meet your specifications.

Supplier of ASTM A790 UNS S31803 and Duplex Tube in Mumbai, view schedule chart and price in Mumbai

Duplex Stainless Steel Pipe Schedule Chart

Duplex Stainless Steel Pipe Schedule Chart

Duplex 2205 Pipe Price

Description Per Unit (INR)
DUPLEX STAINLESS STEEL FORGE PIPES GRADE:UNS S32205, OD 219.3MM x 12.14MM, THICKX 2.9 METERS. 4PCS X 188.375 KGS EACH 822
STAINLESS STEEL SMLS PIPES - DUPLEX Seamless Pipe 1/2 SCH40-DSS 585
STAINLESS STEEL SMLS PIPES - DUPLEX Seamless Pipe 6 SCH40-DSS 15,119
STAINLESS STEEL WELDED PIPES - DUPLEX Seamless Pipe 4 SCH40-DSS 8,743
STAINLESS STEEL DUPLEX EFW PIPE BEASTM A 928 UNS S32250:C.L.1. 6 NB X SCH 10S WE INTEND TO CLAIM REWARDS UNDE 9,027

A789 UNS S31803 Equivalent

PIPES STANDARD WERKSTOFF NR. UNS
Duplex 2205 Pipes 1.4462 / 1.4462 S31803 / S32205

Moduleselasticity

20 200 68 29.0
100 194 200 28.2
200 186 400 27.0
300 180 600 26.2

Welding Process Of Duplex 2205 Tube

The weldability of SAF 2205™ is good. Welding must be carried out without preheating and subsequent heat treatment is normally not necessary. Suitable methods of fusion welding are manual metal-arc welding (MMA/SMAW) and gas-shielded arc welding, with the TIG/GTAW method as first choice.

For SAF 2205™, heat input of 0.5-2.5 kJ/mm and interpass temperature of <150°C (300°F) are recommended.

Recommended filler metals

TIG/GTAW or MIG/GMAW welding

  • ISO 14343 S 22 9 3 N L / AWS A5.9 ER2209 (e.g. Exaton 22.8.3.L)
  • MMA/SMAW welding
  • ISO 3581 E 22 9 3 N L R / AWS A5.4 E2209-17 (e.g. Exaton 22.9.3.LR)
  • ISO 3581 E 22 9 3 N L B / AWS A5.4 E2209-15 (e.g. Exaton 22.9.3.LB)
  • ISO 14343 S 22 9 3 N L / AWS A5.9 ER2209 (e.g. Exaton 22.8.3.L) wire or strip electrodes are recommended for overlay welding of tube sheets and high-pressure vessels in cases where corrosion resistance, equal to that of SAF 2205™, is required.

SA 789 UNS S31803 Chemical Composition

C Si Mn P S Cr Ni Mo N
≤0.030 ≤1.0 ≤2.0 ≤0.030 ≤0.015 22 5 3.2 0.18

Looking for Duplex Steel Tube in small or large OD? Manufacturer of Duplex 2205 Tubing in custom sizes, view material grade and pressure rating

Duplex Pipe Material Grade

Duplex 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

Duplex 2205 Pipe Sizes

Pipe Wall Thk
Milimeter		 Pipe Outer Dia
Milimeter		 Schedule Inches. Kilogram/Meter
1.65 13.72 10S 1/4 0.50
2.24 13.72 40S 1/4 0.64
3.02 13.72 80S 1/4 0.81
1.65 17.15 10S 3/8 0.64
2.31 17.15 40S 3/8 0.86
3.20 17.15 80S 3/8 1.12
2.11 21.34 10S 1/2 1.02
2.77 21.34 40S 1/2 1.29
3.73 21.34 80S 1/2 1.65
2.11 26.67 10S 3/4 1.30
2.87 26.67 40S 3/4 1.71
3.91 26.67 80S 3/4 2.23
2.77 33.40 10S 1 2.13
3.38 33.40 40S 1 2.54
4.55 33.40 80S 1 3.29
6.352) 33.40 160 1 4.30
2.77 42.16 10S 1¼ 2.73
3.56 42.16 40S 1¼ 3.44
4.85 42.16 80S 1¼ 4.53
6.352) 42.16 160 1¼ 5.69
2.77 48.26 10S 1½ 3.16
3.68 48.26 40S 1½ 4.11
5.08 48.26 80S 1½ 5.49
2.77 60.33 10S 2 3.99
3.91 60.33 40S 2 5.52
5.54 60.33 80S 2 7.60
8.742) 60.33 160 2 11.29
3.05 73.03 10S 2½ 5.35
5.16 73.03 40S 2½ 8.77
7.01 73.03 80S 2½ 11.59
3.05 88.90 10S 3 6.56
5.49 88.90 40S 3 11.47
7.62 88.90 80S 3 15.51
11.132) 88.90 160 3 21.67
3.05 101.60 10S 3½ 7.53
5.74 101.60 40S 3½ 13.78
8.08 101.60 80S 3½ 18.92
3.05 114.30 10S 4 8.50
6.02 114.30 40S 4 16.32
8.56 114.30 80S 4 22.67
13.492) 114.30 160 4 34.05
6.55 141.30 40S 5 22.10
9.53 141.30 80S 5 31.44
15.882) 141.30 160 5 49.87
3.4 168.28 10S 6 14.04
7.11 168.28 40S 6 28.69
10.97 168.28 80S 6 43.21
14.27 168.28 120 6 54.75
18.262) 168.28 160 6 68.59
8.18 219.08 40S 8 43.20
12.7 219.08 80S 8 65.63
18.23 219.08 120 8 91.30
23.012) 219.08 160 8 112.97

Duplex Stainless Steel Pipe Weight

Nom Pipe Size O.D.
mm 		Sch 10s Std Sch 40s XS
Sch 80s 		Sch 160
1/2” 21.34   2.77
1.29 		3.73
1.64 		4.76
1.98
3/4” 26.67   2.87
1.71 		3.91
2.23 		5.56
2.94
1” 33.40 2.77
2.12 		3.38
2.54 		4.55
3.28 		6.35
4.30
1 1/4” 42.16   3.56
3.43 		  6.35
5.69
1 1/2” 48.26 2.77
3.15 		3.68
4.11 		5.08
5.49 		7.14
7.34
2” 60.33 2.77
3.98 		3.91
5.52 		5.54
7.59 		8.74
11.28
2 ½” 73.03 3.05
5.34 		5.16
8.76 		   
3” 88.90 3.05
6.54 		5.49
11.45 		7.62
15.50 		11.13
21.65
4” 114.30 3.05
8.48 		6.02
16.31 		8.56
22.65 		13.49
34.02
6” 168.26 3.40
14.04 		7.11
28.68 		10.97
43.19 		 
8” 219.08   8.18
43.16 		   

Duplex Stainless Steel Tube Roughness

Outside surface roughnes (max. level) Inside surface roughness (max. level)
RA 20 defect level max. 50 μm RA 20 defect level max. 20 μm

Services Of Duplex S31803 Seamless Pipe

  • BEVELING
  • UT TESTING
  • POSITIVE MATERIAL IDENTIFICATION
  • HEAT TREATING & ANNEALING
  • HONING & TURNING
  • POLISHING

Alloy 2205 Pipe Stock

S31803 Rectangular Pipes 2205 S31803 EFW Pipes
SCH20 2205 S31803 Pipes SCH80 S31803 Duplex Steel Pipes
Hot Rolled S31803 Pipes Hot Rolled Steel S31803 Seamless Pipes
Hot Rolled Stainless S31803 Welded Pipes Cold Drawn S31803 Duplex Pipes
Cold Drawn Duplex 2205 S31803 Welded Pipes Cold Drawn Steel S31803 Seamless Pipes
DSS S31803 Square Pipes Stainless Duplex S31803 Hollow Pipes
Duplex Steel S31803 Fabricated Pipes S31803 Annealed pipes
Stainless Duplex S31803 small diameter Pipes DSS S31803 Capillary Pipes
S31803 Grade Pipes Seamless Steel Grade S31803 Pipes
S31803 Jis Stainless Steel Pipes Welded S31803 Pipes
1.4462 Werkstoff S31803 Pipes 1.4462 S31803 Round Pipes
2205 S31803 Thick Wall Pipes Alloy 2205 S31803 Welded Pipes
S31803 Alloy round pipes Duplex Material S31803 Polished Pipes

2205 Stainless Steel Pipe Application

  • Petrochemicals
  • Power Generation
  • production and transportation of oil and gas
  • Off-Shore Oil Drilling Companies
  • Pipes for Sea Water Equipment
  • Cooling pipe
  • Heat exchangers
  • Gas Processing
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Structural and mechanical components

International Standards Of Duplex Tubing

China GB ISO Unified Digital Code ASTM / ASME UNS code EN Code Company Commercial Grade
022Cr23Ni4MoCuN S23043 S32304 S32304 1.4362 SAF2304 (Sandvik)
022Cr22Ni5Mo3N S22253 S31803 S31803 1.4462 –
022Cr23Ni5Mo3N S22053 S32205 S32205 1.4462 SAF2205 (Sandvik)
022Cr25Ni7Mo4N S25073 S32750 S32750 1.4410 SAF2507(Sandvik)
022Cr25Ni7Mo3WCuN S22583 S31260 S31260 – –
03Cr25Ni6Mo3Cu2N S25554 S32550 S32550 1.4507 UR52+
022Cr25Ni7Mo4WCuN S27603 S32760 S32760 1.4501 Zeron100
00Cr27Ni7Mo5N – S32707 S32707 – SAF2707(Sandvik)

Test Conducted Of Duplex Tube

China GB ISO Unified Digital Code ASTM / ASME UNS code EN Code Company Commercial Grade
022Cr23Ni4MoCuN S23043 S32304 S32304 1.4362 SAF2304 (Sandvik)
022Cr22Ni5Mo3N S22253 S31803 S31803 1.4462 –
022Cr23Ni5Mo3N S22053 S32205 S32205 1.4462 SAF2205 (Sandvik)
022Cr25Ni7Mo4N S25073 S32750 S32750 1.4410 SAF2507(Sandvik)
022Cr25Ni7Mo3WCuN S22583 S31260 S31260 – –
03Cr25Ni6Mo3Cu2N S25554 S32550 S32550 1.4507 UR52+
022Cr25Ni7Mo4WCuN S27603 S32760 S32760 1.4501 Zeron100
00Cr27Ni7Mo5N – S32707 S32707 – SAF2707(Sandvik)
Compare our price with your current Duplex Pipe suppliers, a choice of sizes and finish, on time delivery, buy Duplex 2205 Tube at dealer price in Mumbai

Duplex Pipe Types

Duplex Stainless Steel Tube
Duplex Stainless Steel Tube
Duplex Tubes
Duplex Tubes
SA 789 UNS S31803 Seamless Pipe
SA 789 UNS S31803 Seamless Pipe
ASTM A790 UNS S31803 Welded Pipe
ASTM A790 UNS S31803 Welded Pipe
Duplex Pipes
Duplex Pipes
Alloy 2205 Pipe
Alloy 2205 Pipe
2205 Stainless Steel Pipe
2205 Stainless Steel Pipe
Duplex Tubing
Duplex Tubing
Duplex Tube
Duplex Tube
Duplex 2205 Tube
Duplex 2205 Tube
ASTM A789 UNS S31803 Round Pipe
ASTM A789 UNS S31803 Round Pipe
Duplex Tube Material
Duplex Tube Material
Duplex Steel Tube
Duplex Steel Tube
Duplex UNS S31803 Pipe
Duplex UNS S31803 Pipe
Duplex Pipe
Duplex Pipe
Duplex 2205 Pipe
Duplex 2205 Pipe
Duplex Stainless Steel Pipe
Duplex Stainless Steel Pipe
Duplex Seamless Pipe
Duplex Seamless Pipe
Duplex Seamless Tube
Duplex Seamless Tube
UNS S31803 Pipe
UNS S31803 Pipe
Seamless Duplex Stainless Steel Pipe
Seamless Duplex Stainless Steel Pipe
Duplex 2205 Seamless Pipe
Duplex 2205 Seamless Pipe
Duplex 2205 Seamless Tube
Duplex 2205 Seamless Tube
Duplex S31803 Seamless Pipe
Duplex S31803 Seamless Pipe
Duplex Welded Pipe
Duplex Welded Pipe
ASTM A790 UNS S31803 Pipe
ASTM A790 UNS S31803 Pipe
Duplex 2205 Tubing
Duplex 2205 Tubing
2205 Duplex Pipe
2205 Duplex Pipe
Dss Pipe
Dss Pipe
2205 Duplex Tubing
2205 Duplex Tubing
2205 Duplex Stainless Steel Pipe
2205 Duplex Stainless Steel Pipe
2205 Duplex Stainless Steel Tubing
2205 Duplex Stainless Steel Tubing
UNS S32205 Pipe
UNS S32205 Pipe
A790 UNS S31803 Pipe
A790 UNS S31803 Pipe
Check SA 789 UNS S31803 specification and dimensions, Duplex Stainless Steel Pipe manufacturers in India offer various inhouse testing facilities to ensure quality of material

2205 Duplex Erw Pipe Testing

2205 Duplex Erw Pipe Testing

Duplex Pipe Standard

  • UNS: S31803, S32205
  • EN Number: 1.4462
  • EN Name: X2CrNiMoN 22-5-3
  • W.Nr.: 1.4462
  • DIN: X2CrNiMoN 22 5 3
  • SS: 2377
  • AFNOR: Z2.CND22.05.03

ASTM A789 UNS S31803 Corrosion

SAF 2205™ possesses better resistance to general corrosion than steel of type ASTM TP316L and TP317L.

ASTM A789 UNS S31803 Corrosion

Iso- corrosion diagram for SAF 2205™, ASTM TP316L and ASTM TP317L in sulphuric acid.

ASTM A789 UNS S31803 Corrosion

Corrosion rate of SAF 2205™, ASTM TP316L and ASTM TP317L in boiling mixtures of 50% acetic acid and varying proportions of formic acid.

ASTM A789 UNS S31803 Corrosion

Duplex 2205 Tube Pitting Corrosion

Grade % Cr % Mo %N PRE
SAF 2205* 22 3.2 0.18 >35
UNS S31803 21.0-23.0 2.50-3.50 0.08-0.20 >30
Alloy 825 20 2.6 - 29
ASTM TP317L 18 3.5 - 30
ASTM TP316L 17 2.2 - 24
Duplex 2205 Tube Pitting Corrosion

 

Duplex 2205 Tube Pitting Corrosion
Duplex 2205 Tube Pitting Corrosion

Corrosion Fatigue Of Duplex 2205 Tubing

Grade Stress level
Specimen
without notch 		Specimen
with notch
MPa ksi MPa ksi
SAF 2205 430 62 230 33
ASTM TP316L
(17Cr12Ni2.5MoN) 		260 38 140 20

Duplex Tube Material Fabrication

Duplex 2205 Pipes Bending
Duplex 2205 Pipes Bending
Duplex Pipes Expanding
Duplex Pipes Expanding
SA 789 UNS S31803 Pipes Machining
SA 789 UNS S31803 Pipes Machining

Benefits Of Duplex Steel Tube

  • Corrosion resistance much better than that of Type 316
  • Good toughness and ductility though not as good as austenitic grades
  • Greater yield and tensile strength
  • Opportunity for purchases to reduce their material costs without compromising on quality
  • Good stress corrosion cracking resistance (SSC)

ASTM A789 UNS S32205 Heat Treatment

1020 - 1100°C (1870-2010°F), rapid cooling in air or water.

20 480 68 0.11
100 500 200 0.12
200 530 400 0.13
300 550 600 0.13
400 590 800 0.14

ASTM A790 UNS S31803 Mechanical Properties

Metric units

≥485 ≥500 680-880 ≥25 ≥25 ≤28

Imperial units

Proof strength Tensile strength Elong. Hardness
Rp0.2a Rp1.0a Rm Ab A2" HRC
ksi ksi ksi % %
≥70 ≥73 99-128 ≥25 ≥25 ≤28

Seamless tube and pipe in the cold-worked condition

Proof strength Tensile strength Elong.
Rp0.2 Rm A2"
MPa ksi MPa ksi %
≥895 ≥130 ≥965 ≥140 ≥10

Tube and pipe with wall thickness max. 20 mm (0.79 in.)

Temperature Proof strength
Rp0.2
°C MPa
min
50 415
100 360
150 335
200 310
250 295
300 280
Temperature Proof strength
Rp0.2
°F ksi
min
120 60.5
200 53.5
300 48.5
400 45.0
500 42.5
600 40.0

According to ASME B31.3 the following design values are recommended for UNS S31803 (SAF 2205™)

Temperature, °F °C Stress ksi MPa
100 38 30.0 207
200 93 30.0 207
300 149 28.9 199
400 204 27.9 192
500 260 27.2 188
600 316 26.9 185

Density Of 2205 Stainless Steel Tubing

7.8 g/cm3, 0.28 lb/in3

Duplex Seamless Pipe Thermal Conductivity

Temperature,°C 20 100 200 300 400
W/(m °C)
SAF 2205 14 16 17 19 20
ASTM TP316L 14 15 17 18 20
Temperature, °F 68 200 400 600 800
Btu/(ft h °F)
SAF 2205 8 9 10 11 12
ASTM TP316L 8 9 10 10 12

Duplex Ss Pipe Thermal Expansion

Temperature, °C 30-100 30-200 30-300 30-400
Per °C
SAF 2205 13.0 13.5 14.0 14.5
Carbon steel 12.5 13.0 13.5 14.0
ASTM TP316L 16.5 17.0 17.5 18.0
Temperature, °F 86-200 86-400 86-600 86-800
Per °F
SAF 2205 7.0 7.5 8.0 8.0
Carbon steel 6.8 7.0 7.5 7.8
ASTM TP316L 9.0 9.5 9.8 10.0

Duplex Welded Pipe Forms Of Supply

  • Welded tubes and pipes
  • Fittings and flanges
  • Strip, annealed or cold-rolled to different degrees of hardness
  • Bar
  • Plate, sheet and wide strip
  • Forged products
  • Cast products

Elasticity Of Duplex 2205 Seamless Pipe

Temperature, °C MPa Temperature, °F ksi
20 200 68 29.0
100 194 200 28.2
200 186 400 27.0
300 180 600 26.2

Resistivity Of Alloy 2205 Pipes

Temperature, °C μΩm Temperature, °F μΩin.
20 0.74 68 29
100 0.85 200 33
200 0.96 400 40
300 1.00 600 43
400 1.10 800 45

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