SA789 S31803 2205 Duplex Steel Tube ASTM A789 Cold Drawn Seamless
2205 Duplex Steel Tube , ASTM A789/SA789 Seamless Stainless Steel Tubing Cold Rolled
Lean duplex grades (PREN range: 22–27)
Typically grade EN 1.4362, have been developed more recently for less demanding applications, particularly in the building and construction industry. Their corrosion resistance is closer to that of the standard austenitic grade EN 1.4401 (with a plus on resistance to stress corrosion cracking) and their mechanical properties are higher. This can be a great advantage when strength is important. This is the case in bridges, pressure vessels or tie bars.
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Grade
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TP 304; TP304H; TP304L; TP316; TP316L; TP 321;TP321H; TP317L; TP310S; TP347H |
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Standard
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ASTM A213, ASTM A 269, ASTM A 270,EN10216-5; ASTM B 622;ASTM B516;ASTM A789, etc |
| Size | OD: 3.18- 101.6 MM |
| WT: 0.5- 20MM | |
| Length: Fixed Length Or Random Length | |
| Advantage | Superior surface finish ,better mechanical property; more precise dimension; perfect inspection method and inspection equipment |
| Application |
Boiler tube applies to petroleum,chemical industry,electric power,boiler,high temperature resistant,low temperature resistant,corrosion resistant.The size can be made according to the customers requirements.High pressure boiler pipe applies to container,petrochemical and so on.Note:Generally,high pressure boiler pipe’s working pressure above 9.88Mpa and working temperature between 450 to 650. |
| Package | Plywood case; woven bag |
| 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 |
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