GB 12Cr13 Stainless steels

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

Data updates

Latest Update: 2025-11
Total number of updates: 12
Update History

This material has 1129 properties — only a subset is shown here.

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GB 12Cr13 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.15
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
11.50 – 13.50
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

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GB 12Cr13 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 217 GPa
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Density
val1
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kg/dm³
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Poisson Coefficient
val1
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Thermal Conductivity
30 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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Electrical Resistivity
0.5 — 0.6 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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Service Temperature
val1
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°C
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This material has 1129 properties — only a subset is shown here.

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GB 12Cr13 Heat Treatments

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

GB 12Cr13 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
410 — 960 MPa
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Elongation, A
18 %
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Reduction of Area
val1
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%
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Impact Strength
val1
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kJ/m²
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Impact Energy
val1
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J
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Brinell Hardness (HB)
159
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Rockwell Hardness (HR)
val1
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Vickers Hardness (HV)
val1
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  • 92 Composition
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