PN 20HM Structural and constructional steels
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This material has 199 properties — only a subset is shown here.
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PN 20HM Chemical Composition
PN-H-84024: 1975 / Steel for elevated temperature service - Grades
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PN 20HM Physical Properties
Temperature
This material has 199 properties — only a subset is shown here.
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PN 20HM Heat Treatments
- Stress relief annealing 630-650°C, 2 min. for 1 mm thick sheet but then less than 15 minutes; Hardening at 910-940°C, cooling in the oil or water and Quenching at 660-680°C, hold time at temperature min. 2h.
PN 20HM Mechanical Properties
Temperature
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PN 20HM 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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- 95Cross References
- 9Composition
- 13Mechanical Properties
- 3Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
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