SA 789 UNS S31803 Seamless Tube and Alloy 2205 Boiler Tubing manufacturer in India
Duplex seamless tube for heat exchanger
In addition to the production of Duplex Stainless Steel Heat Exchanger Tubes to a wide range of Austenitic, Ferritic, Martensitic, Duplex & Super Duplex is also having latest In-house “U” bending facility for manufacturing U-Tubes for the use in heat exchangers, condensers, pre-heaters and other applications. These U-Tubes are made in accordance with requirements of TEMA, ASTM A 688 and other statutory requirements or specifications.
| Grade | S31803 |
|
Standard
|
ASTM A 269 , ASTM A789, ASTM A213 , EN10216-5 ; ASTM B 622 ; ASTM A 270 , ASTM B516 ,etc |
| Size | Routine OD : 19.05mm,25.4mm,31.8mm,38.1mm |
|
|
WT : 1.2-2.77mm |
| Length | According to customer needs up to 20m |
| Advantage | better mechanical property ; Superior surface finish , more precise dimension ; perfect inspection equipment and inspection method |
| Application | low temperature resistant, Boiler tube applies to petroleum, electric power, boiler, high temperature resistant, chemical industry, corrosion resistant. |
| Package | Plywood case |
Buy Duplex 2205 Tube and ASTM A790 UNS S32205 Evaporator/ Condensing Tubing at factory price in Mumbai
Duplex Heat Exchanger Tubes, OD 6mm - 610mm
American Standard |
Austenitic Steel: TP304, TP304L, TP304H, TP304N, TP310S, TP316, TP316L, TP316Ti, TP316H, TP317, TP317L, TP321, TP321H, TP347, TP347H, 904L… Duplex Steel : S32101, S32205, S31803, S32304, S32750, S32760 Others: TP405, TP409, TP410, TP430, TP439, ... |
European Standard |
1.4301, 1.4307, 1.4948, 1.4541, 1.4878, 1.4550, 1.4401, 1.4404, 1.4571, 1.4438, 1.4841, 1.4845, 1.4539, 1.4162, 1.4462, 1.4362, 1.4410, 1.4501 |
Production |
Outside Diameter |
Wall Thickness |
Duplex Cold Drawn Seamless Tube |
6.00mm to 610mm |
0.6 mm to 60mm |
Standard Specification of SA 789 UNS S31803
ASTM A789/A789M - 10a: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A790/A790M - 11: Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
Chemical Composition of SA 790 UNS S31803 Tube
| UNS Designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| max | max | max | max | max | ||||||
| S31803 | 0.03 | 1 | 2 | 0.03 | 0.02 | 21.0 - 23.0 | 4.5 - 6.5 | 2.5 - 3.5 | 0.08 - 0.20 | - |
| S32205 | 0.03 | 1 | 2 | 0.03 | 0.02 | 22.0 - 23.0 | 4.5 - 6.5 | 3.0 - 3.5 | 0.14 - 0.20 | - |
| S32750 | 0.03 | 0.8 | 1.2 | 0.035 | 0.02 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 5.0 | 0.24 - 0.32 | 0.5 max |
| S32760 | 0.05 | 1 | 1 | 0.03 | 0.01 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 4.0 | 0.20 - 0.30 | 0.50 -1.00 |
ASTM A790 UNS S32205 Heat Exchange Tube Application
- Petroleum
- Chemical enterprise
- Super heater of boiler and heat exchanger
- High temperature-resistant transmission fluid pipe in power station
- Ship with pressure pipe
- Exhaust purification device
- Construction and ornament
- Solar industry
- Military

