2205 Duplex pipe

SAKY METAL Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.

The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance). Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle 2205 stainless.

Specifications of 2205 Duplex seamless pipe :

1. Standard Spec.: ASTM A240 ,A789,A790;ASME SA 240 SA789/790

2. Lean Duplex SS – lower nickel and no molybdenum – 2101, 2102, 2202, 2304

Duplex SS – higher nickel and molybdenum – 2205, 2003, 2404

Super Duplex – 25Chromium and higher nickel and molybdenum “plus” – 2507, 255 and Z100

Hyper Duplex – More Cr, Ni, Mo and N – 2707

3. OD Range: 6 ~ 860mm;

4. Wall Thickness Range: 0.5 ~ 60mm

5. Surface Finish : Mill,Pickled, Sandblast,Polishing,etc

6. Techniques: Hot-rolled or cold-drawn

Table of Contents

UNS S32205 Duplex Pipe Chemical Composition:

UNS
Designation
C
Mn
P
S
Si
Ni
Cr
Mo
N
Cu
Others
S31803
0.03
2.00
0.03
0.02
1
4.50–6.50
21.0–23.0
2.50–3.50
0.08–0.20
.
.
S31500
0.03
1.20–2.00
0.03
0.03
1.40–2.00
4.25–5.25
18.0–19.0
2.50–3.00
0.05–0.10
 
 
S32550
0.04
1.50
0.04
0.03
1
4.50–6.50
24.0–27.0
2.90–3.90
0.10–0.25
1.5–2.5
 
S31200
0.03
2.00
0.045
0.03
1
5.50–6.50
24.0–26.0
1.20–2.00
0.14–0.20
.
.
S31260
0.03
1.00
0.03
0.03
0.75
5.50–7.50
24.0–26.0
2.50–3.50
0.10–0.30
0.20–0.80
W 0.10–0.50
S32304
0.03
2.50
0.04
0.04
1
3.0–5.5
21.5–24.5
0.05–0.60
0.05–0.20
0.05–0.60
 
S39274
0.03
1.00
0.03
0.02
0.8
6.0–8.0
24.0–26.0
2.50–3.50
0.24–0.32
0.20–0.80
W 1.50–2.50
S32750
0.03
1.20
0.035
0.02
0.8
6.0–8.0
24.0–26.0
3.0–5.0
0.24–0.32
0.5
 
S32760
0.05
1.00
0.03
0.01
1
6.00–8.00
24.00–26.00
3.00–4.00
0.20–0.30
0.50–1.00
W 0.50–1.00
S32900
0.08
1.00
0.04
0.03
0.75
2.50–5.00
23.00–28.00
1.00–2.00
.
.
.
S32950
0.03
2.00
0.035
0.01
0.6
3.50–5.20
26.00–29.00
1.00–2.50
0.15–0.35
.
.
S39277
0.025
0.80
0.025
0.002
0.8
6.5–8.00
24.00–26.00
3.00–4.00
0.23–0.33
1.2–2.0
W 0.8–1.2

Duplex Steel Seamless Pipes Equivalent:

GradeGBUNS No.AFNOREN No.FranceJIS
Lean Duplex00Cr23Ni4NUN23
(SAF2304)
SS232
(SAF2304)
W.Nr.1.4362UR35NDP11
Duplex SS00Cr18Ni5Mo3Si2
00Cr22Ni5Mo3N
UNS S31500
UNS S31803
SS2376(3RE60)
SS2377(SAF2205)
W.Nr.1.4417
W.Nr.1.4462
UR45NDP1
DP8
0Cr25Ni5Mo2
00Cr25Ni7Mo3WCuN
UNS S32900
UNS S31260
SS2324(10RE51)W.Nr.1.4460
W.Nr.1.4501
 329J1
329J2L
Super Duplex00Cr25Ni7Mo4N
00Cr25Ni6Mo3CuN
UNS S32750
UNS S32550
SS2328(SAF2507)W.Nr.1.4410
W.Nr.1.4507
 UR47N+
UR52N+
Hyper Duplex UNS S32707    

DUPLEX STEEL TENSILE AND HARDNESS REQUIREMENTS:

UNS
Designation
Tensile Strength min, ksi
[MPa]
Yield Strength,
min, ksi [MPa]
Elongation in
2 in. or 50
mm, min, %
Hardness, max
Brinell
Hardness, max
Rockwell C
S31803
90 [620]
65 [450]
25
290
30.5
S31500
92 [630]
64 [440]
30
290
30.5
S32550
110 [760]
80 [550]
15
297
31.5
S31200
100 [690]
65 [450]
25
280
.
S31260
100 [690]
65 [450]
25
.
.
S32304
87 [600]
58 [400]
25
290
30.5
S39274
116 [800]
80 [550]
15
310
.
S32750
116 [800]
80 [550]
15
310
32
S32760
109–130 [750–895]
80 [550]
25
270
.
S32900
90 [620]
70 [485]
20
271
28
S32950
100 [690]
70 [480]
20
290
30.5
S39277
120 [825]
90 [620]
25
290
30

NOTES:
(1) Prior to A 790/A 790M – 87, the values for S31260 were: 92 ksi tensile strength, 54 ksi yield strength, and 30% elongation.
(2) Prior to A 790/A 790M – 89, the tensile strength value was 90 ksi for UNS S32950.

DIMENSIONS OF WELDED AND SEAMLESS DUPLEX STEEL PIPE :

 
 
Outside Diameter
Nominal Wall Thickness
 
 
 
Schedule 5S [Note (1)]
 
Schedule 10S [Note (1)]
Schedule 40S
Schedule 80S
NPS
Designator
in.
mm
in.
MM
in.
MM
in.
MM
in.
MM
1⁄8
0.405
10.29
0.049 [Note (2)]
1.24
0.068
1.73
0.095
2.41
1⁄4
0.54
13.72
0.065 [Note (2)]
1.65
0.088
2.24
0.119
3.02
3⁄8
0.675
17.15
0.065 [Note (2)]
1.65
0.091
2.31
0.126
3.2
1⁄2
0.84
21.34
0.065 [Note (2)]
1.65
0.083 [Note (2)]
2.11
0.109
2.77
0.147
3.73
3⁄4
1.05
26.67
0.065 [Note (2)]
1.65
0.083 [Note (2)]
2.11
0.113
2.87
0.154
3.91
1
1.315
33.4
0.065 [Note (2)]
1.65
0.109 [Note (2)]
2.77
0.133
3.38
0.179
4.55
11⁄4
1.66
42.16
0.065 [Note (2)]
1.65
0.109 [Note (2)]
2.77
0.14
3.56
0.191
4.85
11⁄2
1.9
48.26
0.065 [Note (2)]
1.65
0.109 [Note (2)]
2.77
0.145
3.68
0.2
5.08
2
2.375
60.33
0.065 [Note (2)]
1.65
0.109 [Note (2)]
2.77
0.154
3.91
0.218
5.54
21⁄2
2.875
73.03
0.083
2.11
0.120 [Note (2)]
3.05
0.203
5.16
0.276
7.01
3
3.5
88.9
0.083
2.11
0.120 [Note (2)]
3.05
0.216
5.49
0.3
7.62
31⁄2
4
101.6
0.083
2.11
0.120 [Note (2)]
3.05
0.226
5.74
0.318
8.08
4
4.5
114.3
0.083
2.11
0.120 [Note (2)]
3.05
0.237
6.02
0.337
8.56
5
5.563
141.3
0.109 [Note (2)]
2.77
0.134 [Note (2)]
3.4
0.258
6.55
0.375
9.52
6
6.625
168.28
0.109
2.77
0.134 [Note (2)]
3.4
0.28
7.11
0.432
10.97
8
8.625
219.08
0.109 [Note (2)]
2.77
0.148
3.76
0.322
8.18
0.5
12.7
10
10.75
273.05
0.134 [Note (2)]
3.4
0.165
4.19
0.365
9.27
0.500 [Note (2)]
12.70 [Note (2)]
12
12.75
323.85
0.156  [Note (2)]
3.96
0.18
4.57
0.375 [Note (2)]
9.52 [Note (2)]
0.500 [Note (2)]
12.70 [Note (2)]
14
14
355.6
0.156 [Note (2)]
3.96
0.188
4.78
16
16
406.4
0.165 [Note (2)]
4.19
0.188
4.78
18
18
457.2
0.165 [Note (2)]
4.19
0.188
4.78
20
20
508
0.188 [Note (2)]
4.78
0.218
5.54
22
22
558.8
0.188 [Note (2)]
4.78
0.218
5.54
24
24
609.6
0.218 [Note (2)]
5.54
0.25
6.35
30
30
762
0.25
6.35
0.312
7.92

GENERAL NOTE: The decimal thickness listed for the respective pipe sizes represents their nominal or average wall dimensions.
NOTES:
(1) Schedules 5S and 10S wall thicknesses do not permit threading in accordance with the American National Standard for Pipe Threads (ANSI B1.20.1).
(2) These do not conform to the American National Standard for Welded and Seamless Wrought Steel Pipe (ANSI B36.10-1979).

ASTM Specifications :

Pipe Smls

Pipe Welded

Tube Smls

Tube Welded

Sheet/Plate

Bar

Flanges & Fittings

A790

A790

A789

A789

A240

A276

A182

S32205 Duplex Steel Corrosion Resistance Comparison :

S32205 Duplex Steel corrosion resistance

Why Choose Us:

1. You can get the perfect material according to your requirement at the least possible price.
2. We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.
3. The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)
4. e guarantee to give a response within 24hours(usually in the same hour)
5. You can get stock alternatives, mill deliveries with minimizing manufacturing time.
6. We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.

Quality Assurance(including both Destructive and Non-Destructive)

1. Visual Dimension Test
2. Mechanical examining like tensile, Elongation and reduction of area.
3. Impact analysis
4. Chemical examination analysis
5. Hardness test
6. Pitting protection test
7. Penetrant Test
8. Intergranular Corrosion Testing
9. Roughness Testing
10. Metallography Experimental Test

Packaging:

1. 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.
2. Saky Metal’s pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

S32205 Super Duplex Pipe package

Applications:

1.Desalination Equipment
2.Chemical process pressure vessels, piping and heat exchangers
3.Marine Applications
4.Flue Gas Scrubbing Equipment
5.Pulp & Paper Mill Equipment
6.Offshore Oil production/technology
7.Oil and gas industry equipment

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