AISI 446 Bolting Products
AISI 446 is listed in the FERRITIC 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 446 lists Chromium (Cr): Primary chromium-alloyed ferritic stainless composition; Molybdenum (Mo): Present in Mo-bearing grades; improves localized corrosion resistance; Stabilizers (Ti/Nb): Used in selected stabilized grades; Carbon (C): Controlled at a low level. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for AISI 446 lists Tensile Strength: Approx. 450–700 MPa; Yield Strength: Approx. 250–450 MPa; Elongation: Approx. 15–30 %; Hardness: Approx. 75–100 HRB 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 446: 1.4762. 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 446.
The reference chemistry table lists Chromium (Cr): Primary chromium-alloyed ferritic stainless composition; Molybdenum (Mo): Present in Mo-bearing grades; improves localized corrosion resistance; Stabilizers (Ti/Nb): Used in selected stabilized grades; Carbon (C): Controlled at a low level. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Chromium | Cr | Primary chromium-alloyed ferritic stainless composition |
| Molybdenum | Mo | Present in Mo-bearing grades; improves localized corrosion resistance |
| Stabilizers | Ti/Nb | Used in selected stabilized grades |
| Carbon | C | Controlled at a low level |
| Iron | Fe | Balance |
| Other Elements | — | Controlled according to the applicable grade and product specification |
The table reports Tensile Strength: Approx. 450–700 MPa; Yield Strength: Approx. 250–450 MPa; Elongation: Approx. 15–30 %; Hardness: Approx. 75–100 HRB HB as reference data for AISI 446. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | Approx. 450–700 | MPa |
| Yield Strength | Approx. 250–450 | MPa |
| Elongation | Approx. 15–30 | % |
| Hardness | Approx. 75–100 HRB | HB |
AISI 446 combines the characteristics of its stainless-steel family with grade-specific alloying and heat-treatment behavior suited to its intended service.
Magnetic stainless structure with no austenite-stabilizing nickel requirement in the base family.
Chromium provides the passive surface film; molybdenum-bearing grades offer stronger localized-corrosion resistance.
Ferritic grades generally retain stable dimensions during thermal cycling.
The listed designations cover different machinability, stabilization and corrosion-resistance requirements.
AISI 446 is selected for engineered components and bolting where the material characteristics of this grade match the service environment.
AISI 446 is considered for automotive and exhaust hardware when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
AISI 446 is considered for industrial equipment when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
AISI 446 is considered for architectural and fabricated components when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
AISI 446 is considered for machined stainless parts when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.
Select the individual grade, not only the ferritic family.
Review weldability and sensitization behavior for welded assemblies.
Confirm chloride and elevated-temperature exposure against the exact grade.
The commonly listed Werkstoff / EN cross-reference for AISI 446 is 1.4762. 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.