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Applications:
Desalination
Oil and Gas pipeline
Heat exchangers
Boiler
Pressure vessel
Product material
Alloy 2205 (UNS S32305/S31803) is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed duplex stainless steel with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness.
Alloy 2205 duple steel provides pitting and crevice corrosion resistance superior to 316L or 317L austenitic stainless steel in almost all corrosive media. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic.
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Standard |
Grade |
CHEMICAL COMPOSITION(%) |
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|
C(max) |
Mn(max) |
P(max) |
S(max) |
Si(max) |
Ni |
Cr |
Mo |
N |
||
|
ASTM A789/790 |
S32205/2205 |
0.030 |
2.00 |
0.03 |
0.02 |
1.00 |
4.5-6.5 |
22.0-23.0 |
3.0-3.5 |
0.14-0.2 |
|
S31803 |
0.03 |
2.00 |
0.03 |
0.02 |
1.00 |
4.5-6.5 |
21.0-23.0 |
2.5-3.5 |
0.08-0.2 |
|
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Toko duplex steel seamless pipe/tube products Forms:
Straight duplex steel seamless pipe with annealed and pickled duplex stee.
Coiled duplex steel seamless tube with bright annealed and pickled.
Duplex steel seamless tube with annealed and pickled.
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Toko Typical Manufacturing standard:
ASTM A790 2205, ASTM A790 S31803
ASTM A790 2205/S31803, ASTM A790 S32205
|
PIPE DIMENSION AND TOLERANCE ACCORDING TO ASTM A790/ANSI B36.10&B36.19 |
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|
INCH |
DN |
O.D.(mm) |
Wall Thickness (mm) |
|||
|
Sch5s/5 |
Sch10s |
Sch40s |
Sch80s |
|||
|
/STD |
/XS |
|||||
|
1/8 |
6 |
10.3 |
0.89 |
1.24 |
1.73 |
2.41 |
|
1/4 |
8 |
13.7 |
1.25 |
1.65 |
2.24 |
3.02 |
|
3/8 |
10 |
17.1 |
1.25 |
1.65 |
2.31 |
3.2 |
|
1/2 |
15 |
21.3 |
1.65 |
2.11 |
2.77 |
3.73 |
|
3/4 |
20 |
26.7 |
1.65 |
2.11 |
2.87 |
3.91 |
|
1 |
25 |
33.4 |
1.65 |
2.77 |
3.38 |
4.55 |
|
11/4 |
32 |
42.2 |
1.65 |
2.77 |
3.56 |
4.85 |
|
11/2 |
40 |
48.3 |
1.65 |
2.77 |
3.68 |
5.08 |
|
2 |
50 |
60.3 |
1.65 |
2.77 |
3.91 |
5.54 |
|
21/2 |
65 |
73 |
2.11 |
3.05 |
5.16 |
7.01 |
|
3 |
80 |
88.9 |
2.11 |
3.05 |
5.49 |
7.62 |
|
31/2 |
90 |
101.6 |
2.11 |
3.05 |
5.74 |
8.08 |
|
4 |
100 |
114.3 |
2.11 |
3.05 |
6.02 |
8.56 |
|
5 |
125 |
141.3 |
2.77 |
3.4 |
6.55 |
9.53 |
|
6 |
150 |
168.3 |
2.77 |
3.4 |
7.11 |
10.97 |
|
8 |
200 |
219.1 |
2.77 |
3.76 |
8.18 |
12.7 |
|
10 |
250 |
273.1 |
3.4 |
4.19 |
9.27 |
12.7 |
|
12 |
300 |
323.9 |
3.96 |
4.57 |
9.53 |
12.7 |
|
14 |
350 |
355.6 |
3.96 |
4.78 |
9.53 |
12.7 |
|
16 |
400 |
406.4 |
4.19 |
4.78 |
9.53 |
12.7 |
|
20 |
500 |
508 |
4.78 |
5.54 |
9.53 |
12.7 |
|
24 |
600 |
609.6 |
5.54 |
6.35 |
9.53 |
12.7 |
|
30 |
750 |
762 |
6.35 |
7.92 |
|
|
|
ASTM A790 Dimension Tolerance for duplex steel seamless pipe |
||
|
Standards |
ASTM A790 duplex steel seamless pipe |
|
|
Outside Diameter(mm) |
Tolerance(mm) |
|
|
Outside Diameter |
10.3-48.3 |
-0.80，+0.40 |
|
＞48.3-114.3 |
-0.80，+0.80 |
|
|
＞114.3-219.1 |
-0.80，+1.60 |
|
|
＞219.1-457.2 |
-0.80，+2.40 |
|
|
＞457-660.4 |
-0.80，+3.20 |
|
|
＞660.4-864 |
-0.80，+4.00 |
|
|
＞864-1219 |
-0.80，+4.80 |
|
|
Thickness |
10.3-73 |
-12.5%,+20% |
|
88.9-457.2, S/D≤5% |
-12.5%,+22.5% |
|
|
88.9-457,S/D＞5% |
-12.5%,+15% |
|
|
≥508, S/D≤5% |
-12.5%,+22.5% |
|
|
≥508, S/D＞5% |
-12.5%,+15% |
|
