Lloyds LR Type 420 Structural and constructional steels
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This material has 110 properties — only a subset is shown here.
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Lloyds LR Type 420 Chemical Composition
Rules for the Manufacture, Testing and Certification of Materials, Chapter 5 Section 3; Steel Forgings; Forgings for shafting and machinery, Lloyd's Register, 2025
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Lloyds LR Type 420 Physical Properties
Temperature
This material has 110 properties — only a subset is shown here.
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Lloyds LR Type 420 Heat Treatments
- Forgings are to be:
Fully annealed or
Normalized or
Normalized and tempered or
Quenched and tempered.
The tempering temperature is to be not less than 550°C. - Quenched and tempered. The tempering temperature is to be not less than 550°C.
Lloyds LR Type 420 Mechanical Properties
Temperature
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Lloyds LR Type 420 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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- 45Cross References
- 27Composition
- 32Mechanical Properties
- 3Physical Properties
- 3Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- -Total Suppliers