ASME SA790 S32550 super duplex stainless steel tube/ASME SA790 S32550 STEEL AND PIPE
Type: Duplex and Super duplex steel
Standard: ASME SA790
Grade: Duplex S31200, S31500, S31803, S32205(2205), S32304(2304)
Super duplex steel S32550(255), S32750(2507), S32760
OD.range: 6mm-630mm
W.T. range: 1mm-40mm
ASME SA790 S32550 STEEL AND PIPE Packaging & Delivery
Package: Wooden cases or Bundles with plastic paper protected.
Delivery: Shipped in 35-40days after prepayment.
ASME SA790 S32550 STEEL AND PIPE Inspection and Test Procedure
| 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) |
Chemical composition of typical duplex stainless steel pipe:
| C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | |
| UNS S32101 | 0.03max | 2.0max | 0.03max | 0.03max | 1.0max | 20.0~23.0 | 1.0~3.0 | 0.6max | 0.05~0.17 | 1.0max |
| UNS S31803 | 0.03max | 2.0max | 0.03max | 0.02max | 1.0max | 21.0~23.0 | 4.5~6.5 | 2.5~3.5 | 0.08~0.20 | / |
| UNS S32205 | 0.03max | 2.0max | 0.03max | 0.02max | 1.0max | 22.0~23.0 | 4.5~6.5 | 3.0~3.5 | 0.14~0.20 | / |
| UNS S32750 | 0.03max | 1.2max | 0.035max | 0.02max | 0.8max | 24.0~26.0 | 6.0~8.0 | 3.0~5.0 | 0.24~0.32 | 0.5max |
