1.4462 SS Duplex stainless steel sheets/plates with 6mm thickness
Application:
Used in oil refining, chemical fertilizer, papermaking, petroleum, OEM and seawater high-temperature concentrated nitric acid and heat exchanger and cold tube machine and device
Chemcial Composition:
Grade | C max | Mn max | Si max | S max | P max | Cr max | Ni | Mo | Cu max | N |
S32750(2507) 00Cr25Ni7Mo4N | 0.03 | 1.20 | 0.8 | 0.020 | 0.035 | 24.0/26.0 | 6.0/8.0 | 3.0/5.0 | 0.50 | 0.24/0.32 |
S3180.(2507) 00Cr22Ni5Mo3N | 0.03 | 2.00 | 1.0 | 0.020 | 0.030 | 21.0/23.0 | 4.50/6.50 | 2.50/3.50 | 0.08/0.20 | |
S31500(3RE60) 00Cr18Ni5Mo3Siz | 0.03 | 1.2/2.00 | 1.4/2.00 | 0.030 | 0.030 | 18.0/19.0 | 4.25/5.25 | 2.50/3.00 | 0.05/0.10 |
Mechanical properties
parameters Grade | σb(Mpa) min | σs(Mpa) min | δ% min | Hardness | |
S32750(2507) 00Cr25Ni7Mo4N | 800 | 550 | 15 | 310 | 32 |
S3180.(2507) 00Cr22Ni5Mo3N | 620 | 450 | 25 | 290 | 30.5 |
S31500(3RE60) 00Cr18Ni5Mo3Siz | 630 | 440 | 30 | 290 | 30.5 |
Although 2205 has good high temperature oxidation resistance, this grade - like other duplex stainless steels - suffers from embrittlement if held for even short times at temperatures above 300ºC. If embrittled, this can only be rectified by a full solution annealing treatment. Duplex stainless steels are almost never used above 300ºC.