904L | UNS N08904
Description
904L is a high-alloy austenitic stainless steel with low carbon content. The grade is intended for use under severe corrosive conditions. It was originally developed to resist corrosion in dilute sulfuric acid and has been proven effective in this application over many years. Structurally, 904L is fully austenitic and is less sensitive to precipitation ferrite and sigma phases than conventional austenitic grades with high molybdenum content. 904L has a good resistance to general corrosion, particularly in sulfuric and phosphoric conditions.
Specifications Stocked
| Form Name | Size Range | Schedules | Specifications |
|---|---|---|---|
| Welded Pipe | Contact Us | ||
| Seamless Pipe | Contact Us | ||
| Buttweld Fittings | Contact Us | ||
| Flanges | Contact Us | ||
| Pressure Fittings | Contact Us |
Limiting Chemical Composition %
|
C |
Cr |
Cu |
Mn |
Mo |
Ni |
P |
S |
Si |
|---|---|---|---|---|---|---|---|---|
|
MAX |
19.0 – 23.0 |
1.0 – 2.0 |
MAX |
4.0 – 5.0 |
23.0 – 28.0 |
MAX |
MAX |
MAX |
Typical Industrial Applications
- Production and transport of sulfuric acid
- Metal pickling in sulfuric acid
- Production and concentrations of phosphoric acid
- Use in seawater, brackish water, condensers, heat exchangers and general pipe work
- Paper and allied industries
- Gas washing
Tensile Requirements
|
Tensile Strength |
Yield Strength |
|---|---|
|
70 |
25 |
NOTE: The information and data in this product data sheet have been compiled from a variety of sources, and should be considered as a general guide only. The information and data included are accurate to the best of our knowledge, and may be revised at any time without notice. Energy Metals Inc. assumes no responsibility for the accuracy of this information.