NB 40CrNi2Mo Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: China / NB
Indicative price:

Data updates

Latest Update: 2018-01
Total number of updates: 1
Update History

This material has 77 properties — only a subset is shown here.

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NB 40CrNi2Mo Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.3700 – 0.4400
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.7000 – 0.9500
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.2000
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

NB/T 20006.14: 2014 / Alloy steel for pressurized water reactor nuclear power plants - Part 14: Forged nickel-chromium-molybdenum steel bars with or without vanadium for use in making Class 1 components bolts fastener

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NB 40CrNi2Mo Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 77 properties — only a subset is shown here.

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NB 40CrNi2Mo Heat Treatments


  • The heat treatment, should include the following process:
    - austenitizing at between 820°C and 885°C,
    - quenching by immersion,
    - tempering at a temperature which will produce the requisite properties, followed by still air cooling. Nominal holding temperature shall be between 590°C and 630°C for a minimum time of 4 hours.

NB 40CrNi2Mo Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
930 — 1170 MPa
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Brinell Hardness (HB)
val1
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Elongation, A
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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Reduction of Area
val1
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%
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NB 40CrNi2Mo International Equivalent Materials


Showing 2 of 40 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
AFCEN
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
NB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 40Cross References

  • 9Composition
  • 24Mechanical 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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