Duplex Stainless Steel tube
Applications
Heater, Heat Exchanger, Condenser, Instrumentation, pipe lines….
Standard
ASTM/ASME A/ SA789 Seamless and welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM/ASME A/SA790 Seamless and welded Ferritic/Austenitic Stainless steel pipe
Chemical Content of typical Duplex Stainless Steel
| Grade | c | Mn | P | S | Si | Cr | Ni | Mo | N | Cu |
| UNS S32101 | 0.03 Max | 2.0 Max | 0.03 Max | 0.03 Max | 1.0 Max | 20.0-23.0 | 1.0-3.0 | 0.6 Max | 0.05-0.17 | 1.0 Max |
| UNS S32304 | 0.03 Max | 2.5 Max | 0.04 Max | 0.04 Max | 1.0 Max | 21.5-24.5 | 3.0-5.5 | 0.05-0.6 | 0.05-0.20 | 0.05-0.6 |
| UNS S31803 | 0.03 Max | 2.0 Max | 0.03 Max | 0.03 Max | 1.0 Max | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | |
| UNS S32205 | 0.03 Max | 2.0 Max | 0.03 Max | 0.03 Max | 1.0 Max | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 | |
| UNS S32750 | 0.03 Max | 1.2 Max | 0.035 Max | 0.03 Max | 0.8 Max | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | 0.5 Max |
| UNS S32760 | 0.05Max | 1.0 Max | 0.03 Max | 0.03 Max | 1.0 Max | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.20-0.30 | 0.5-1.0 |
| UNS S32707 | 0.03 Max | 1.5 Max | 0.035 Max | 0.03 Max | 0.5 Max | 26.0-29.0 | 5.5-9.5 | 4.0-5.0 | 0.30-0.50 | 1.0 Max |
| GB | ASTM | UNS | DIN | |
| 022Cr23Ni4MoCuN | S32304 | S32304 | 1.4362 | SAF2304(Sandvik) |
| 022Cr22Ni5Mo3N | S31803 | S31803 | 1.4462 | – |
| 022Cr23Ni5Mo3N | S32205 | S32205 | 1.4462 | SAF2205(Sandvik) |
| 022Cr25Ni7Mo4N | S32750 | S32750 | 1.4410 | SAF507(Sandvik) |
| 022Cr25Ni7Mo3WCuN | S31260 | S31260 | – | – |
| 03Cr25Ni6Mo3Cu2N | S32550 | S32550 | 1.4507 | UR25+ |
| 022Cr25Ni7Mo4WCuN | S32760 | S32760 | 1.4501 | Zeron100 |
| 00Cr27Ni7Mo5N | S32707 | S32707 | – | SAF2707(Sandvik) |
Available Size
| Products | OD | WT | Length | |||
| Inch | MM | Inch | MM | Inch | Meter | |
| Tube | 1/2”-3” | 12-76.2 | 0.02”-0.5” | 0.5-12.0 | 105’ | 32 |
| Pipe | NPS 1/2”-10” | 21.34-273.05 | Sch10-Sch80 | 2.11-12.7 | 98’ | 30 |
