Products | OD | Wall | Lengths and/or coils | Grades | OD | Wall | Lengths |
---|---|---|---|---|---|---|---|
Welded Austenitic Steel Boiler, Super Heater, Heat-Exchangers & Condenser Tubes
Specifications: ASTM-A789 and ASME-SA789 |
3/16" (4.76 mm) to 4" (101.6 mm)
Metric sizes available |
0.020" (0.51 mm) to 0.220" (5.59 mm) | Random or cut lengths up to 68' (20.7 m)
Coils to 1-1/2" OD |
Duplex 2205 | <1-1/2" (38.1 mm) ±0.005" (0.13 mm)
1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm)
3-1/2" (88.9 mm) to 4" (101.6 mm) ±0.015" (0.38 mm) |
±10% | Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0"
Coils to 80,000' (24,384 m) |
Tensile Strength | Yield Strength | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alloy | UNS Designation | Spec. | psi | MPa | ksi | psi | MPa | ksi | Elongation in 2 in. (min.) % | Grain Size Req. | Max. Hardness | Modulus of Elasticity (x106 psi) | Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) | Thermal Conductivity (BTU-in/ ft2-h-°F) |
Duplex 2205 | S32205 | A789, A790 | 95,000 | 655 | 95 | 70,000 | 485 | 70 | 30 | — | 28 Rc, 30* Rc |
27.5 | 7.6 | 180 |
Duplex 2205 | S31803 | A789, A790 | 90,000 | 620 | 90 | 65,000 | 450 | 65 | 30 | — | 28 Rc, 30* Rc |
27.5 | 7.6 | 180 |
*OD over 1.0" TS>87, YS>58, no hardness requirement 1.0" OD and under
Grade | Duplex 2205 |
---|---|
UNS Designation | S31803/S32205* |
Carbon (C) Max. | 0.030 |
Manganese (Mn) Max. | 2.00 |
Phosphorous (P) Max. | 0.030 |
Sulphur (S) Max. | 0.020 |
Silicon (Si) Max. | 1.00 |
Chromium (Cr) | 22.0 – 23.0 |
Nickel (Ni) | 4.5 – 6.5 |
Molybdenum (Mo) | 3.0 – 3.5 |
Nitrogen (N) | 0.14 – 0.20 |
Iron (Fe) | Bal. |
Copper (Cu) | — |
Other Elements | N/A |
* S32205 is the more restrictive chemistry and is shown
Alloy | UNS Designation | Werkstoff NR. | Specifications* |
---|---|---|---|
2205 | S31803/S32205 | 1.4462 | A/SA789, A/SA790 |
• | Central/South America | • | North America |
• | Asia |
• | Mid East/Africa |
• | Western Europe |
• | Australasia |
• | Eastern Europe |
• | UAE |
• | Sri Lanka | • | Bahrain |
• | Russia | • | Egypt |
• | Portugal | • | Turkey |
• | Spain | • | Singapore |
• | Brazil | • | Thailand |
• | Chile | • | Malaysia |
• | Venezuela | • | Indonesia |
• | Costa Rica | • | Poland |
• | USA, U.A.E | • | Italy |
• | Oman | • | Canada |
• | Saudi Arabia | • | Angola |
• | Qatar |
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