UNI 12 NiCr 3 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: Italy / UNI
Indicative price:

Data updates

Latest Update: 2020-10
Total number of updates: 3
Update History
2019-08 2019-07

This material has 211 properties — only a subset is shown here.

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UNI 12 NiCr 3 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.09 – 0.15
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.40 – 0.70
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.30 – 0.60
UNIT
%
CAS NUMBER
7439-96-5
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

UNI 3097: 1975 / Hot rolled or forced or cold drawn, special alloyed steel finished products for rolling bearings. Qualities, requirements and tests

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UNI 12 NiCr 3 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Electrical Resistivity
0.14 Ω∙mm²/m
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Density
val1
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kg/dm³
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Thermal Conductivity
46.861 W/(m∙°C)
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Electrical Conductivity
val1
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S/m
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Poisson Coefficient
val1
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This material has 211 properties — only a subset is shown here.

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UNI 12 NiCr 3 Heat Treatments


  • Annealing: Heat to 600 - 680°C, hold for a minimum of 2 hours then slow cool in the furnace (approximately 50°C/hour) to 500°C or below, followed by cooling to room temperature in still air. Harden by oil quenching from 900 - 920°C/ 1h. Stress relieve by heating to 150 - 180°C for 2 hours, followed by cooling in still air.
  • Hot worked at 1100-900°C; Cementation at 870-900°C; Core hardened at 810-880°C; Surface hardened at 810-840°C. Quenched in hot water bath; Stress relieved at 150-200°C.

UNI 12 NiCr 3 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
540 — 1130 MPa
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Brinell Hardness (HB)
131 — 289
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Elongation, A
≥ 10 %
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Impact Strength
val1
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kJ/m²
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Rockwell Hardness (HR)
val1
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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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UNI 12 NiCr 3 International Equivalent Materials


Showing 2 of 48 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
IS
COUNTRY / PRODUCER
India
EQUIVALENCE CATEGORY
Implicit

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  • 48Cross References

  • 51Composition
  • 43Mechanical Properties
  • 11Physical Properties
  • 8Heat Treatment
  • -Metallography
  • -Machinability

  • 5Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • 45Total Suppliers