Product introduction
◆ Standards
GB: 022Cr25Ni7Mo4N
ASTM: S32750/2507
ISO: X2CrNiMoN25-7-4
EN: X2CrNiMoN25-7-4/1.4410
◆ Properties
Chemical properties:
| 2507 Duplex Stainless Steel | C | Si | Mn | P | S | Ni | Cr | Mo | Cu | N |
| ≤0.030 | ≤0.80 | ≤1.20 | ≤0.035 | ≤0.020 | 6.00~8.00 | 24.00~26.00 | 3.00~5.00 | ≤0.50 | 0.24~0.32 |
Mechancal properties:
| 2507 Super Duplex Stainless Steel | Yield Strength RP0.2/MPa | Tensile Strength Rm/MPa | Elongation after break A/% | Hardness value | |
| HBW | HRC | ||||
| ≥550 | ≥795 | ≥15 | ≤310 | ≤32 | |
Physical properties:
| 2507 Stainless Steel Plate | |
| Density/（kg/dm³）20℃ | 7.80 |
| Melting Range/℃ | - |
| Specific Heat[kJ/(kg•K)]0℃~100℃ | - |
| Thermal Conductivity/[W/(m•K)] | 100℃: 14 |
| 500℃: - | |
| Coefficient of Thermal Expansion/(10-6/K) | 0℃~100℃: 12.0 |
| 0℃~500℃: - | |
| Electrical Resistivity/(Ω•mm2/m)20℃ | - |
| Modulus of Elasticity(kN/mm2)20℃ | 185(200℃) |
| Magnetic | YES |
◆ Application
2507 stainless steel sheet is the steel with the best resistance to localized corrosion among duplex stainless steels, especially the best resistance to pitting corrosion.
2507 duplex stainless steel contains 24%-26% chromium and 3%-5% molybdenum, which makes it resistant to uniform corrosion of organic acids (such as formic acid and acetic acid), inorganic acids and dilute hydrochloric acid.
2507 super duplex stainless steel has an extremely low carbon content, less than 0.030%, and is resistant to carbide-related intergranular corrosion.
The duplex structure of 2507 stainless steel plate has excellent chloride stress corrosion resistance and high resistance to crevice corrosion.
Super duplex 2507 board has high compressive strength, impact strength, low thermal expansion coefficient and high thermal conductivity, these characteristics are suitable for structural parts and mechanical parts.
2507 super duplex stainless steel can be welded with ER2594 type electrode and wire without preheating.
Super duplex 2507 plates are very suitable for heat exchange equipment in chemical, petroleum, petrochemical and power industries that use river water, groundwater and sea water as cooling media.
Super Duplex 2507 plate is particularly suitable for offshore oil and gas applications, and wells that are naturally high in salinity or are injected with brine for enhanced recovery.
Super Duplex 2507 plate is particularly suitable for offshore oil and gas applications, and wells that are naturally high in salinity or are injected with brine for enhanced recovery. Specific applications include: offshore oil or natural gas platforms (heat exchangers, water treatment and water supply systems, fire protection systems, sprinkler systems, water stabilization systems); petrochemical equipment and seawater desalination equipment (high pressure pipes and seawater pipes); Mechanical and structural components that require high strength and high corrosion resistance at the same time; combustion (exhaust gas) gas purification equipment.
