Alloy 20 Bolting Products
Alloy 20 is listed in the INCOLOY ALLOY 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 Alloy 20 lists Nickel (Ni): Balance / major constituent; Iron (Fe): Grade specific; Chromium (Cr): Grade specific; Molybdenum (Mo): Grade specific. Confirm exact limits and analysis tolerances against the governing standard and product form.
The mechanical-property table for Alloy 20 lists Tensile Strength: Grade / condition dependent MPa; Yield Strength: Grade / condition dependent MPa; Elongation: Grade / condition dependent %; Hardness: Grade / condition dependent HB / HRC. 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 Alloy 20: 2.4660. 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 Alloy 20.
The reference chemistry table lists Nickel (Ni): Balance / major constituent; Iron (Fe): Grade specific; Chromium (Cr): Grade specific; Molybdenum (Mo): Grade specific. Confirm the governing standard, product analysis tolerances and product form before ordering.
| Element | Symbol | Composition |
|---|---|---|
| Nickel | Ni | Balance / major constituent |
| Iron | Fe | Grade specific |
| Chromium | Cr | Grade specific |
| Molybdenum | Mo | Grade specific |
| Copper | Cu | Grade specific |
| Titanium | Ti | Grade specific |
| Aluminium | Al | Grade specific |
| Other elements | — | According to applicable specification |
The table reports Tensile Strength: Grade / condition dependent MPa; Yield Strength: Grade / condition dependent MPa; Elongation: Grade / condition dependent %; Hardness: Grade / condition dependent HB / HRC as reference data for Alloy 20. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | Grade / condition dependent | MPa |
| Yield Strength | Grade / condition dependent | MPa |
| Elongation | Grade / condition dependent | % |
| Hardness | Grade / condition dependent | HB / HRC |
Incoloy alloys are nickel-iron-chromium engineering materials designed for corrosion resistance and elevated-temperature service. Final selection should be based on the actual operating environment and the requirements of the applicable material standard.
Performance is grade-specific and can be tailored to oxidizing, reducing, chloride or chemical service conditions.
Selected grades retain useful mechanical or corrosion-resistant performance at elevated service temperatures.
Chemistry, heat treatment and mechanical requirements should be checked against the exact grade and product standard.
Material suitability depends on pressure, temperature, corrosion mechanism, fastener loading and fabrication condition.
Incoloy materials are selected for applications where the grade-specific combination of corrosion resistance, temperature capability and mechanical performance is appropriate.
Used for high-temperature and corrosion-resistant process components.
Selected grades are used in acidic and chemically aggressive environments.
Applied where corrosion resistance and elevated-temperature capability are needed.
Commonly selected for heat-transfer and pressure-containing service according to grade.
Confirm the exact alloy designation, product form, heat treatment and intended service environment before specifying bolting.
Use grade-specific certified mechanical data for preload, torque, strength and temperature calculations.
Check compatibility with the actual process media, pressure, temperature and galvanic conditions for the intended installation.
The commonly listed Werkstoff / EN cross-reference for Alloy 20 is 2.4660. 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.
Suitability depends on the exact grade, product condition, temperature and required mechanical properties. Check the governing standard before use.
Incoloy grades are selected for demanding corrosion environments, but resistance varies significantly by grade and process chemistry.
Incoloy materials are used in specialized bolting, chemical processing, power, marine, aerospace and other engineering applications depending on grade.
Our engineering team can help you select suitable materials based on operating temperature, pressure and service conditions.