2507
Duplex stainless steel 2507 is a super austenitic ferritic stainless steel that offers high strength and corrosion resistance. Great resistance to general and localized corrosion. Good mechanical, welding and forming properties.
| USA | JP | DE | EUR | CN |
|---|---|---|---|---|
| ASTM | JIS | DIN | EN | GB |
| 2507 | - | - | 1.4410 | 022Cr25Ni7Mo4N |
Chemical Composition
The typical chemical composition is shown in the table below.
| Grade | Standard | 2507 Chemical Composition | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | Cr | Ni | P | S | Mo | Others | ||
| ≤ % | ≤ % | % | % | % | ≤ % | ≤ % | ≤ % | % | ||
| 2507 | ASTM A240 | 0.03 | 0.8 | 1.2 | 24.0 - 26.0 | 6.0 - 8.0 | 0.035 | 0.02 | 3.0 - 4.0 | N: 0.2 - 0.3 |
| 1.4410 | EN 10088-2 | 0.03 | 1 | 1 | 24.0 - 26.0 | 6.0 - 8.0 | 0.035 | 0.015 | 3.0 - 4.5 | N: 0.24 - 0.35 |
Mechanical Properties
The mechanical properties are given in the table below.
| Grade | Standard | 2507 Mechanical Properties | ||||
|---|---|---|---|---|---|---|
| Tensile Strength | Yield Strength 0.2% | Elongation >% | Hardness | |||
| (MPa) ≥ | (MPa) ≥ | HRB ≤ | HB ≤ | |||
| 2507 | ASTM A240 | 550 | 795 | 15 | 32 | 310 |
| 1.4410 | EN 10088-2 | 530 | 730 | 20 | 29 | 290 |
Properties & Typical Applications
Type 2207 combines many of the most beneficial properties of ferritic and austenitic steels and offers excellent resistance to spot, gap and uniform corrosion due to its high chromium and molybdenum content. The biphase microstructure ensures that the steel has high stress corrosion cracking resistance and high mechanical strength. Applications in the oil and gas industry; Heat exchanger pipes, water treatment and water supply systems, desalination (desalination) equipment; Mechanical and structural components with high strength and high corrosion resistance are required; Burning (waste) gas purification equipment.