Duplex Stainless Steel Pipe
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Standard: ASTM A789, ASTM A790, ASTM A928; Grade S32750(SAF2507), S31803(SAF2205), S31500(3RE60) Size: Outside Diameter: Ø3.175-Ø457.2mm; Wall Thickness: 0.1-30mm; Application: High Corrosion Resistance and High Strength for Chemicals; Food and Drinking water, Marine Transportation, Energy extraction, Construction, petrochemicals, Oil cracking, Pollution treatment, etc; |
Chemical Composition %：
Physical Constants：
Addition:
ASTM A240 Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and for General Applications;
ASTM A264 Standard Specification for Stainless Chromium-Nickel Steel-Clad Plate;
ASTM A480 Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip;
ASTM A484 Standard Specification for Stainless Steel Bars, Billets, and Forgings;
ASTM A479 Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure;
| Main Steel Grade | C≦ | Mn≦ | Si≦ | S≦ | P≦ | Cr | Ni | Mo | Cu≦ | N |
| S32750(SAF2507) | 0.03 | 1.2 | 0.8 | 0.02 | 0.035 | 24 26 |
6 8 |
3 5 |
0.5 | 0.24 0.32 |
| S31803(SAF2205) | 0.03 | 2 | 1 | 0.02 | 0.03 | 21 23 |
4.5 6.5 |
2.5 3.5 |
0.08 0.2 |
|
| S31500(3RE60) | 0.03 | 1.2 2 |
1.4 2 |
0.03 | 0.03 | 18 19 |
4.25 5.25 |
2 2.5 |
0.05 0.1 |
Physical Constants：
| Main Steel Grade | Heat Treatment Temperature ℃ |
Ab (Mpa) | As≥ (Mpa) | Elongation ∮≥ | Brinell Hardness | Rockwell Hardness |
| S32750(SAF2507) | 1025-1125 | 800 | 550 | 15 | 310 | 32 |
| S31803(SAF2205) | 1020-1100 | 620 | 450 | 25 | 290 | 30.5 |
| S31500(3RE60) | 980-1040 | 630 | 440 | 30 | 290 | 30.5 |
Addition:
ASTM A240 Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and for General Applications;
ASTM A264 Standard Specification for Stainless Chromium-Nickel Steel-Clad Plate;
ASTM A480 Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip;
ASTM A484 Standard Specification for Stainless Steel Bars, Billets, and Forgings;
ASTM A479 Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure;