Steber Steel Solutions is a known supplier and stockist of Duplex Steel S31803 / S32205 Threaded Fittings, which possesses higher strength compared to conventional austenitic stainless steels. This allows threaded fittings made from this grade to withstand higher pressures and mechanical stresses. The increased strength and durability of Duplex Steel S32205 ensure the reliability and long-term performance of threaded fittings in various applications.
It is a duplex stainless steel grade that has gained significant importance in threaded fittings. Here are some reasons why Duplex Steel S31803 / S32205 is highly valued in threaded fittings: Corrosion Resistance, Strength and Durability, Resistance to Chloride Stress Corrosion Cracking, Temperature and Thermal Cycling Performance, and Cost-Effectiveness.
We provide the best quality UNS S31803 Threaded Cross Specification Standard, werkstoff 1.4462 Threaded Nipple, Duplex Steel S32205 45 Deg Threaded Elbow, Pure DSS S31803 Threaded Fittings Stockist.
Duplex Steel 2205 Threaded Hexagonal Plug Fittings offers excellent corrosion resistance, especially in environments where other stainless steel grades may fail. Its dual-phase microstructure, consisting of austenite and ferrite, provides enhanced resistance to corrosion, including pitting, crevice corrosion, and stress corrosion cracking. This makes it highly suitable for threaded fittings exposed to corrosive fluids or environments. Chloride stress corrosion cracking (SCC) is a significant concern in threaded fittings, particularly in environments containing chlorides. Duplex Steel WNR 1.4462 Threaded Lateral Tee Fittings exhibits exceptional resistance to chloride SCC, making it a preferred choice for fittings used in chloride-rich environments, such as offshore and marine applications.
These Alloy 2205 Threaded Tee Fittings maintains its mechanical properties and corrosion resistance over a wide range of temperatures. It can withstand both high and low temperature conditions, including thermal cycling. This makes it suitable for threaded fittings in industries where temperature variations are common, such as petrochemical, oil and gas, and chemical processing. While these threaded fittings offers superior properties, it is often a more cost-effective option compared to other high-performance alloys. Its excellent strength, corrosion resistance, and durability contribute to reduced maintenance and replacement costs, making it an economical choice for threaded fittings.
Specifications | ASTM B564 / ASME SB564 |
Standards | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
Size | 1/2”NB TO 4”NB IN |
Class | 2000 LBS, 3000 LBS, 6010 LBS, 9000 LBS |
Type | Socketweld Fittings, Screwed-Threaded Fittings |
STANDARD | WERKSTOFF NR. | UNS |
Duplex 2205 | 1.4462 | S31803 / S32205 |
DN | NPS | Center to End NPT Elbow, NPT Tee, NPT Cross A |
Center to End 45 Deg Elbow C |
O.D. of Band H |
Min. Wall Thick. G |
Length of Thread. Minimum (1) |
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Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | Class 2000 | Class 3000 | Class 6000 | B | L2 | ||
6 | 1/8 | 21 | 21 | 25 | 17 | 17 | 19 | 22 | 22 | 25 | 3.18 | 3.18 | 6.35 | 6.4 | 6.7 |
8 | 1/4 | 21 | 25 | 28 | 17 | 19 | 22 | 22 | 25 | 33 | 3.18 | 3.30 | 6.60 | 8.1 | 10.2 |
10 | 3/8 | 25 | 28 | 33 | 19 | 22 | 25 | 25 | 33 | 38 | 3.18 | 3.51 | 6.98 | 9.1 | 10.4 |
15 | 1/2 | 28 | 33 | 38 | 22 | 25 | 28 | 33 | 38 | 46 | 3.18 | 4.09 | 8.15 | 10.9 | 13.6 |
20 | 3/4 | 33 | 38 | 44 | 25 | 28 | 33 | 38 | 46 | 56 | 3.18 | 4.32 | 8.53 | 12.7 | 13.9 |
25 | 1 | 38 | 44 | 51 | 28 | 33 | 35 | 46 | 56 | 62 | 3.68 | 4.98 | 9.93 | 14.7 | 17.3 |
32 | 1-1/4 | 44 | 51 | 60 | 33 | 35 | 43 | 56 | 62 | 75 | 3.89 | 5.28 | 10.59 | 17.0 | 18.0 |
40 | 1-1/2 | 51 | 60 | 64 | 35 | 43 | 44 | 62 | 75 | 84 | 4.01 | 5.56 | 11.07 | 17.8 | 18.4 |
50 | 2 | 60 | 64 | 83 | 43 | 44 | 52 | 75 | 86 | 102 | 4.27 | 7.14 | 12.09 | 19.0 | 19.2 |
65 | 2-1/2 | 76 | 83 | 95 | 52 | 52 | 64 | 92 | 102 | 121 | 5.61 | 7.65 | 15.29 | 23.6 | 28.9 |
85 | 3 | 86 | 95 | 106 | 64 | 64 | 79 | 109 | 121 | 146 | 5.99 | 8.84 | 16.64 | 25.9 | 30.5 |
100 | 4 | 106 | 114 | 114 | 79 | 79 | 79 | 146 | 152 | 152 | 6.55 | 11.18 | 18.67 | 27.7 | 33.0 |
DN | NPS | End to End Couplings W |
End to End Caps P |
O.D. D | End Wall Thick. G Minimum |
Length of Thread. Minimum (1) |
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Class 3000&Class 6000 | Class 3000 | Class 6000 | Class 3000 | Class 6000 | Class 3000 | Class 6000 | B | L2 | ||
6 | 1/8 | 32 | 19 | … | 16 | 22 | 4.8 | … | 6.4 | 6.7 |
8 | 1/4 | 35 | 25 | 27 | 19 | 25 | 4.8 | 6.4 | 8.1 | 10.2 |
10 | 3/8 | 38 | 25 | 27 | 22 | 32 | 4.8 | 6.4 | 9.1 | 10.4 |
15 | 1/2 | 48 | 32 | 33 | 28 | 38 | 6.4 | 7.9 | 10.9 | 13.6 |
20 | 3/4 | 51 | 37 | 38 | 35 | 44 | 6.4 | 7.9 | 12.7 | 13.9 |
25 | 1 | 60 | 41 | 43 | 44 | 57 | 9.7 | 11.2 | 14.7 | 17.3 |
32 | 1-1/4 | 67 | 44 | 46 | 57 | 64 | 9.7 | 11.2 | 17.0 | 18.0 |
40 | 1-1/2 | 79 | 44 | 48 | 64 | 76 | 11.2 | 12.7 | 17.8 | 18.4 |
50 | 2 | 86 | 48 | 51 | 76 | 92 | 12.7 | 15.7 | 19.0 | 19.2 |
65 | 2-1/2 | 92 | 60 | 64 | 92 | 108 | 15.7 | 19.0 | 23.6 | 28.9 |
80 | 3 | 108 | 65 | 68 | 108 | 127 | 19.0 | 22.4 | 25.9 | 30.5 |
100 | 4 | 121 | 68 | 75 | 140 | 159 | 22.4 | 28.4 | 27.7 | 33.0 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |