PN 20 Structural and constructional steels
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PN 20 Chemical Composition
PN-H-84019: 1993 / Unalloyed wrought steel for case hardening and for quenching and tempering - Grades
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PN 20 Physical Properties
Temperature
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PN 20 Heat Treatments
- 1. For case hardening: Heated in the range 1100-850°C, cooled in the water, than normalized at 870-900°C, cooling in the air. Softened at 650-700°C, cooling in the air. Hardened in water or oil at 830-870°C. Carburized at 900-980°C, (carburizing temperature generally not exceed 950°C, for special technologies, for example in vacuum, apply higher carburizing temperature, e.g. 1020 to 1050°C), than cooled in 1.water or oil, 2.furnace or 3. in the air; Hardening B: 1. Core area at 860-880°C, 2.Carburized area at 780-800°C and 3.Centarline area in water or oil. Tempering 1h at 150-200°C; 2. Wrought steel: Heated at 1100-900°C, softened at 650-700°C and normalized at 880-920°C. Hardened at 860-900°C, center zone cooled in water, than tempered at 550-660°C.
PN 20 Mechanical Properties
Temperature
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PN 20 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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- 390Cross References
- 28Composition
- 119Mechanical Properties
- 3Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- 83Joints
- -Coatings
- 5Dimensions
- 1Tribology
- 8491Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 316Total Suppliers