NB P12 Structural and constructional steels
Data updates
This material has 41 properties — only a subset is shown here.
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NB P12 Chemical Composition
NB/T 47019.3: 2011 / Purchase technical specification for boiler and heater exchanger tubes/pipes - Part 3: Non-alloy and alloy steel with specified elevated temperature properties
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NB P12 Physical Properties
Temperature
This material has 41 properties — only a subset is shown here.
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NB P12 Heat Treatments
- Normalizing and tempering of steel pipes:
For wall thickness =<30mm, normalizing temperature 900 to 960°C and tempering temperature 680°C to 730°C.
For wall thickness > 30mm steel tube, quenching plus tempering or normalizing and tempering: quenching temperature not lower than 900°C, tempering temperature 680°C to 730°C. Normalizing temperature at 900 to 960°C, tempering temperature at 680°C-730°C, but quick cooling after normalizing.
NB P12 Mechanical Properties
Temperature
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NB P12 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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- 14Cross References
- 7Composition
- 12Mechanical Properties
- 3Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
- 4Total Suppliers