20Cr13 (China / GB) Material Properties

Other designations:
Material group: Ferrous Alloys / Stainless steels
Country/Standard: China / GB

Data updates

Latest Update: 2024-10
Total number of updates: 12
Update History:
2022-11 2020-11 2019-10 2019-03 2019-01 2017-05 2016-09 2016-08 2015-12 2015-10 2015-08

Mechanical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 470 — 850 MPa view details
Tensile Strength val1
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MPa view details
Tensile Strength val1
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MPa view details
Elongation, A 15 % view details
Elongation, A val1
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% view details
Elongation, A val1
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% view details
Reduction of Area val1
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% view details
Reduction of Area val1
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% view details
Reduction of Area val1
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% view details
Impact Strength val1
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kJ/m² view details
Impact Strength val1
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kJ/m² view details
Impact Strength val1
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kJ/m² view details
Impact Energy val1
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J view details
Brinell Hardness (HB) 192 view details
Rockwell Hardness (HR) val1
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Vickers Hardness (HV) val1
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Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 68.2 — 123.3 ksi view details
Tensile Strength val1
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ksi view details
Tensile Strength val1
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ksi view details
Elongation, A 15 % view details
Elongation, A val1
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% view details
Elongation, A val1
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% view details
Reduction of Area val1
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% view details
Reduction of Area val1
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% view details
Reduction of Area val1
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% view details
Impact Strength val1
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ft·lb/in² view details
Impact Strength val1
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ft·lb/in² view details
Impact Strength val1
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ft·lb/in² view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) 192 view details
Rockwell Hardness (HR) val1
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view details
Vickers Hardness (HV) val1
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view details

Physical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 228 GPa view details
Modulus of Elasticity val1
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GPa view details
Modulus of Elasticity val1
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GPa view details
Modulus of Elasticity val1
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GPa view details
Density val1
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kg/dm³ view details
Poisson Coefficient val1
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Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 30 W/(m∙°C) view details
Thermal Conductivity val1
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W/(m∙°C) view details
Thermal Conductivity val1
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W/(m∙°C) view details
Thermal Conductivity val1
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W/(m∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Electrical Resistivity 0.6 — 0.64 Ω∙mm²/m view details
Electrical Resistivity val1
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Ω∙mm²/m view details
Electrical Resistivity val1
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Ω∙mm²/m view details
Electrical Resistivity val1
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Ω∙mm²/m view details
Modulus of Elasticity 27.6 E+03 — 33.1 E+03 ksi view details
Modulus of Elasticity val1
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ksi view details
Modulus of Elasticity val1
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ksi view details
Modulus of Elasticity val1
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ksi view details
Density val1
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lb/in³ view details
Poisson Coefficient val1
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view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Thermal Conductivity 17.3 BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
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BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
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BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
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BTU/(h∙ft∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Electrical Resistivity 997 E-06 — 1.06 E-03 Ω∙circular·mil/ft view details
Electrical Resistivity val1
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Ω∙circular·mil/ft view details
Electrical Resistivity val1
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Ω∙circular·mil/ft view details
Electrical Resistivity val1
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Ω∙circular·mil/ft view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.16 – 0.25
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
12.00 – 14.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 1.00
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

GB/T 20878: 2024 / Stainless steels - Designation and chemical composition

Heat Treatments

  • Annealed at 800 - 900°C, air cooled or at 750°C, fast cooled.
  • Annealing at 750°C, rapid cooling (or at 800 to 900°C, cold cooling).