Stainless steel 1.4529, X1NiCrMoCuN25-20-7, Alloy 926, UNS N08926 resistant to intergranular corrosion according to EN 10088-1
| Standards | Steel Grades | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | ||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Mo: | Cu: | N: | |
| EN | X1NiCrMoCuN25-20-7 - X1CrNiMoCuN25-20-7 - 1.4529 | |||||||||
| <0.02 | <1.0 | <0.5 | <0.03 | <0.01 | 19.0 - 21.0 | 24.0 - 26.0 | 6.0 - 7.0 | 0.5 - 1.5 | 0.10 - 0.25 | |
| ASTM | UNS N08926 - 26-3 Mo - 6 Mo - Alloy 926 | |||||||||
| <0.02 | <2.0 | <0.5 | <0.03 | <0.01 | 19.0 - 21.0 | 24.0 - 26.0 | 6.0 - 7.0 | 0.5 - 1.5 | 0.15 - 0.25 | |
| ASTM | UNS N08925 | |||||||||
| <0.02 | <1.0 | <0.5 | <0.045 | <0.03 | 19.0 - 21.0 | 24.0 - 26.0 | 6.0 - 7.0 | 0.8 - 1.5 | 0.1 - 0.2 | |
| SUS | 317 J5L | |||||||||
| <0.02 | <2.0 | <1.0 | <0.045 | <0.03 | 19.0 - 23.0 | 23.0 - 28.0 | 4.0 - 5.0 | 1.0 - 2.0 | - | |
1.4529, X1NiCrMoCuN25-20-7 - specification and application
1.4529 grade is high alloyed stainless steel with an austenitic structure, which can be classified as nickel alloys (according to American standards).
Delivered in the supersaturated state exhibits resistance to intercrystalline, pitting, and stress corrosion, salt, sea water, chloride, sulfuric acid, phosphoric acid and other aggressive chemicals in high concentrations in liquid and gaseous form.
Materials of 1.4529 grade, except high chemical resistance, can work at elevated temperatures while maintaining adequate mechanical properties.
Ignoring the high content of nickel and chromium, the standard also specifies a relatively large amount of Molybdenum and Nitrogen, which is particularly worthwhile when selecting grade from the related group of high alloy steels.
Significantly higher percentages of Nitrogen and Molybdenum contribute to limiting the creation of intermetallic phases, as well as improving the impact resistance.
Steel is used mainly in the chemical, paper, cryogenic, aerospace, and power industries. The main end products are heat exchangers, chemical tanks, pumps, screws, aircraft components, bushings, shafts, water desalination and flue gas desulphurisation equipment, valves and even radiator components.
General mechanical and physical properties of 1.4529, X1NiCrMoCuN25-20-7 grade
- Tensile strength, Rm: 650 - 850 MPa
- Yield point, Rp0,2: >300 MPa
- Elongation, A > 40%
- Modulus of elasticity, E: 195 GPA
- Hardness: <250 HB
- Heat capacity, cp20℃: 450 J * kg-1 * K-1
- Heat conductivity, λ: 12 W * m-1 * K-1
Steel properties at individual working temperatures
| Properties | Operating temperature | |||||
|---|---|---|---|---|---|---|
| 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | ||
| Yield point, Rp0,2 | MPa | > 230 | >190 | >170 | >160 | - |
| Linear Expansion Factor, α | * 10-6 K-1 | 15,8 | 16,1 | 16,5 | 16,9 | 17,3 |
| Modulus of elasticity, E | GPa | 190 | 182 | 174 | 166 | 158 |
In the above mentioned species, the company supplies:
- Peeled and drawn bars 1.4529, X1NiCrMoCuN25-20-7, UNS N08926, Alloy 926
- Forgings and forged bars 1.4529, X1NiCrMoCuN25-20-7, UNS N08926, Alloy 926
- Seamless Tubes 1.4529, X1NiCrMoCuN25-20-7, UNS N08926, Alloy 926
- Sheets 1.4529, X1NiCrMoCuN25-20-7, UNS N08926, Alloy 926
- Stripes 1.4529, X1NiCrMoCuN25-20-7, UNS N08926, Alloy 926
Other alternatives and equivalents of 1.4529 grade:
X1NiCrMoCuN25-20-7, X1CrNiMoCuN25-20-7, SUS 317 J5L, 254NM, JS 1925 6Mo, UNS N08367, CR6XN, 6XN, 25-6HN, SA182 F62, UNS N08925, 1925hMo, 26-3 Mo, 6 Mo, 926/6Mo, SUS 317 J5L, 836L, 4529, UNS N08926.