NMX B-082 H25 Tool steels

Material group: Ferrous Alloys / Tool steels
Country / Standard: Mexico / NMX

Data updates

Latest Update: 2017-08
Total number of updates: 1
Update History

This material has 6 properties — only a subset is shown here.

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NMX B-082 H25 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.72 — 8 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 6 properties — only a subset is shown here.

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NMX B-082 H25 Heat Treatments

  • Preheating temperature at 790°C;
    Austenization temperature in salt bath at 1230°C or in controlled atmosphere oven at 1245°C, one minute for each millimeter of thickness. Cooling medium in air or oil. The temperature limit must be ± 5°C. If the sample is austenised in salts, it must be immersed in the salt bath for at least 5 minutes. If it is austenized in a controlled atmosphere oven, the sample should remain at the austenization temperature for 5 to 15 minutes.
    Tempered temperature at 550°C, The annealing at 550°C is in two cycles of 2h each, with intermediate cooling at room temperature. The tempering at 540°C is in three cycles of 2h each, with cooling to room temperature.

NMX B-082 H25 Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 235
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Rockwell Hardness (HR)
≥ 44
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  • -Cross References
  • -Composition
  • 2Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers