PN 20HNM Structural and constructional steels
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This material has 239 properties — only a subset is shown here.
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PN 20HNM Chemical Composition
PN-H-84030-02: 1989 / Structural alloy steel - Carburizing steel - Grades
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PN 20HNM Physical Properties
Temperature
This material has 239 properties — only a subset is shown here.
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PN 20HNM Heat Treatments
- Common HT: Heated for open die forging: 1100-850°C or for Die forging 1150-850°C; Softened at T= 650-700°C; Normalized at T= 860-900°C; Carbonized with powder at T=880-950°C or salt bath at T= 900-950°C or gas at T=880-950°C. Cooling in oil (water) or steam water at T=160-250°C or air; Hardened at T=860-900°C and cooled in water or oil or steam water at 160-250°C; Annealed at T=660-680°C than cooled in the furnace; Re-hardened at T=810-830°C, cooled in water (oil) or steam water at 160-250°C. Tempered at 150-200°C.
- Hardening in oil at 860ºC then Tempering in air at 180ºC.
PN 20HNM Mechanical Properties
Temperature
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PN 20HNM International Equivalent Materials
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Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.
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- 116Cross References
- 12Composition
- 17Mechanical Properties
- 3Physical Properties
- 3Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
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