AISI 904L Bolting Products
AISI 904L is listed in the SUPER-AUSTENITIC STAINLESS STEEL material family. The reference data below should be checked against the governing product specification, product form and delivery condition before selection or certification.
The reference chemistry table for AISI 904L lists Chromium (Cr): Approx. 19–23%; Nickel (Ni): Approx. 23–28%; Molybdenum (Mo): Approx. 4–5%; Copper (Cu): Approx. 1–2%. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for AISI 904L lists Tensile Strength: 490–710 MPa; Yield Strength: 220–350 MPa; Elongation: 35–50 %; Hardness: Approx. 150–230 HB HB. These are reference entries; supplied condition, dimensions, test method and governing specification control the requirements, and the figures are not design allowables.
Werkstoff / EN cross-reference for AISI 904L: 1.4539. This comparison does not guarantee interchangeability; confirm chemistry, product form and condition against the governing specification.
View Technical Information →Standard identification and material designation information for AISI 904L.
The reference chemistry table lists Chromium (Cr): Approx. 19–23%; Nickel (Ni): Approx. 23–28%; Molybdenum (Mo): Approx. 4–5%; Copper (Cu): Approx. 1–2%. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Chromium | Cr | Approx. 19–23% |
| Nickel | Ni | Approx. 23–28% |
| Molybdenum | Mo | Approx. 4–5% |
| Copper | Cu | Approx. 1–2% |
| Iron | Fe | Balance |
| Other Elements | — | Controlled according to the applicable grade and product specification |
The table reports Tensile Strength: 490–710 MPa; Yield Strength: 220–350 MPa; Elongation: 35–50 %; Hardness: Approx. 150–230 HB HB as reference data for AISI 904L. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 490–710 | MPa |
| Yield Strength | 220–350 | MPa |
| Elongation | 35–50 | % |
| Hardness | Approx. 150–230 HB | HB |
AISI 904L combines the characteristics of its stainless-steel family with grade-specific alloying and heat-treatment behavior suited to its intended service.
High nickel/chromium/molybdenum or strengthening additions provide enhanced service performance.
Molybdenum and nitrogen additions improve resistance to pitting and crevice corrosion in many chloride environments.
Selected for chemical-processing, marine and high-temperature applications.
Mechanical properties depend on product form, heat treatment and specification.
AISI 904L is selected for engineered components and bolting where the material characteristics of this grade match the service environment.
AISI 904L is considered for chemical and process equipment when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
AISI 904L is considered for marine and offshore hardware when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
AISI 904L is considered for heat exchangers and piping when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
AISI 904L is considered for high-performance bolting when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
Match the alloy to the exact corrosive chemistry and temperature.
Use welded-condition corrosion data where applicable.
For bolting, check galling, preload retention and thermal-expansion compatibility.
The commonly listed Werkstoff / EN cross-reference for AISI 904L is 1.4539. Treat this as a grade comparison, not a guarantee of interchangeability. Verify chemistry, product form, condition and governing specification against the supplier certificate before substitution.
Our engineering team can help you select suitable materials based on operating temperature, pressure and service conditions.