Chemical Industry Duplex Steel Tube Coiled Pipe S31803 ASTM A789 / A790
S31803 ASTM A789 / A790 Duplex Steel Coiled Tube For Chemical Industry
| 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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Size |
OD : 4.76 - 25.4mm |
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WT : 0.71 - 2.11mm |
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Length : >1000Meters |
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4.76 * 0.71mm / 4.76 * 0.89mm / 4.76 * 1.24mm |
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6 * 1mm / 6 * 1.5mm |
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6.35 * 0.71mm / 6.35 * 0.89mm / 6.35 * 1.24mm / 6.35 * 1.65mm |
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7.94 * 0.71mm / 7.94 * 0.89mm / 7.94 * 1.24mm / 7.94 * 1.65mm |
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9.53 * 0.71mm / 9.53 * 0.89mm / 9.53 * 1.24mm / 9.43 * 1.65mm |
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10 * 1mm / 10 * 1.5mm |
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12 * 1mm / 12 * 1.5mm / 12 * 2mm |
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12.7 * 0.71mm / 12.7 * 0.89mm / 12.7 * 1.24mm / 12.7 * 1.65mm / 12.7 * 2.11mm |
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14 * 1mm / 14 * 1.5mm / 14 * 2mm |
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15.88 * 0.89mm / 15.88 * 1.24mm / 15.88 * 1.65mm / 15.88 * 2.11mm |
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16 * 1mm / 16 * 1.5mm / 16 * 2mm |
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19.05 * 0.89mm / 19.05 * 1.24mm / 19.05 * 1.65mm / 19.05 * 2.11mm |
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25.4 * 0.89mm / 25.4 * 1.24mm / 25.4 * 1.65mm / 25.4 * 2.11mm |
Inspection & Test
1 .100 % PMI , Spectro Chemical Aanlysis Test for Raw Material
2 .100 % Dimension & Visual Examination
3 . Mechanical Properties Test Include Tension Test,Flaring Test ( For Seamless tube / pipe ) / Flange Test ( For Welded Pipe & Tube ) , Hardness Test , Reversed Flattening Test
4 .100 % Hydrostatic Test or 100 % NON - DESTRUCTIVE Test ( ET or UT )
5 . Radiographic Test for Welded Pipe ( shall be accordance with specification , or shall be as agreed upon between the purchaser and vendor )
6 . Straightness Test ( optional )
7 . Roughness Test ( optional )
8 . Intergranular Corrosion Test ( optional )
9 . Impact Test ( optional )
10 . Grain Size Determinations ( optional )
NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION .
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