Alloy 926 – properties, applications and technical data
Alloy 926 is a highly alloyed austenitic stainless steel with molybdenum and nitrogen additions. These additions significantly improve resistance to pitting, crevice corrosion and stress corrosion cracking, especially in chloride-containing environments.
Alloy 926 also offers excellent mechanical strength and good weldability, making it suitable for use in highly corrosive and demanding applications.
Properties of Alloy 926
Alloy 926 is a super-austenitic stainless steel developed for highly aggressive corrosion environments. The combination of high nickel, chromium and molybdenum content provides very good resistance to pitting and crevice corrosion.
The nitrogen in the alloy improves both mechanical strength and resistance to local corrosion in chloride-containing solutions.
- Type: superaustenitic stainless steel
- Alloy: Fe-Ni-Cr-Mo-N
- Structure: austenitic
- Designations: Alloy 926, Cronifer 1925 hMo, UNS N08926, W.Nr. 1.4529
- Typical composition: Ni ~24–26%, Cr ~19–21%, Mo ~6–7%, N ~0.15–0.25%, Cu ~0.5–1.5%
Advantages
- Very good resistance to pitting and crevice corrosion
- High resistance to stress corrosion cracking in chloride environments
- Good mechanical strength
- Good weldability
- Stable performance in both oxidizing and reducing environments
Limitations
- Higher material cost than standard austenitic stainless steels
- Not intended for heavy high temperatures where nickel-based superalloys are required
Common product forms for Alloy 926
- Round bar
- Sheet
- Strip
- Tube
- Wire
Typical applications for Alloy 926
- Seawater desalination systems and marine components
- Flue gas cleaning equipment and emission control systems
- Chemical process plants and storage tanks
- Heat exchangers, piping and fittings in aggressive chloride environments
- Pharmaceutical and food industry applications where high purity and corrosion resistance are required required
Corrosion resistance
Alloy 926 is an excellent choice for environments with high chloride levels and aggressive chemical exposure. The alloy offers very good resistance to pitting and crevice corrosion.
It performs reliably in both oxidizing and reducing conditions and is therefore often used in the chemical industry, offshore environments and desalination systems.
Environments where Alloy 926 performs well
- Chloride-containing environments
- Seawater and marine systems
- Chemical process environments
- Flue gas cleaning equipment
Environments to avoid
- Applications where very high temperature resistance is required
- Environments where nickel-based superalloys are more suitable
Technical data
| Yield strength (0.2%) |
~300 MPa |
| Tensile strength |
~650 MPa |
| Elongation |
~35 % |
| Density |
~8.1 g/cm³ |
| Modulus of elasticity |
~200 GPa |
| Thermal conductivity |
~13 W/m·K |
| PREN |
~45 |
| Melting point |
~1320–1390 °C |
Recommended filler metals for welding include Alloy 926-compatible materials such as AWS A5.14 ERNiCrMo-3 or ER385 (UNS N08926).
With a global network of suppliers, we can offer Alloy 926 in engineering dimensions for demanding industrial and corrosive applications.
Contact us for price, availability and technical consulting.
Supplier of Alloy 926 with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys and advanced stainless materials, including super austenitic alloys such as Alloy 926.
With over 100 years of experience in the metal industry, we deliver materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM, AMS and ISO standards.
Cutting, testing and quality assurance are carried out in-house to ensure the right tolerances and fast global delivery for technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Special alloys from stock
- ASTM / AMS / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
