PROPRIETARY 20MnCr5 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: PROPRIETARY

Data updates

Latest Update: 2025-05
Total number of updates: 4
Update History
2023-07 2021-05 2020-03

This material has 152 properties — only a subset is shown here.

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PROPRIETARY 20MnCr5 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.3
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Fe
VALUE
Balance
UNIT
%
CAS NUMBER
7439-89-6
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

GKN Additive (part of GKN Powder Metallurgy), Product Data Sheets,

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PROPRIETARY 20MnCr5 Physical Properties


Temperature

PROPERTY / VALUE
Coefficient of Thermal Expansion (CTE)
12.8 10-6/°C
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PROPRIETARY 20MnCr5 Heat Treatments


  • Hardening: 840 - 870°C, hold time 30 min when thoroughly heated, water or oil quenching
    Tempering: 160 - 200 °C, hold time 2 h when thoroughly heated, air cooling
    Optional softening treatment: Normalizing 870 °C, hold time 1 h when thoroughly heated, air cooling
    Optional carburizing in carbon rich atmosphere: Carburizing treatment 860-900 °C, cooling in air. Hardening and tempering to be performed after carburizing

PROPRIETARY 20MnCr5 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
1250 — 1510 MPa
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Elongation, A
8 — 10 %
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Impact Energy
val1
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J
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Yield Strength, Rp0.2
900 — 1320 MPa
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  • 98Cross References

  • 11Composition
  • 31Mechanical Properties
  • 8Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

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

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

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

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