TCVN 30CrNiMo8 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: Vietnam / TCVN
Indicative price:

Data updates

Latest Update: 2019-07
Total number of updates: 1
Update History

This material has 164 properties — only a subset is shown here.

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TCVN 30CrNiMo8 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.26 – 0.34
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.80 – 2.20
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.40
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

TCVN 12142-2: 2017 / Heat-treatable steels, alloy steels and free-cutting steels - Part 2: Alloy steels for quenching and tempering

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TCVN 30CrNiMo8 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 164 properties — only a subset is shown here.

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TCVN 30CrNiMo8 Heat Treatments


  • Hardening at 830-860°C (Temperatures at the lower end of the range are generally used for water, and those at the upper end for oil quenching; Time for austenitizing as a guide: at least 30 min.)

    Quenching agent: Oil (When choosing the quenching agent, the influence of other parameters, such as shape, dimensions and quenching temperature, on properties and crack susceptibility, should be taken into account. Other quenching agents such as synthetic quenchants may also be used.)

    Tempering at 540-660°C (Time for tempering as a guide: at least 60 min.)

    End quench test austenitizing at 845 ± 5°C (Time for austenitizing as a guide: 30-35 min.)

    The given conditions are for guidance. However, the temperatures specified for the end quench test are mandatory.

TCVN 30CrNiMo8 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
930 — 1230 MPa
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Brinell Hardness (HB)
≤ 248
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Elongation, A
≥ 12 %
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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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Yield Strength, Rp0.2
val1
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MPa
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TCVN 30CrNiMo8 International Equivalent Materials


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Official
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Germany
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Italy
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Official

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  • 60Cross References

  • 18Composition
  • 34Mechanical Properties
  • 3Physical Properties
  • 4Heat Treatment
  • -Metallography
  • -Machinability

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

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

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

  • 45Total Suppliers