GX 8 CrNi 12 (Czech Republic / CSN) Material Properties

Other designations:
Material group: Ferrous Alloys / Cast steels
Country/Standard: Czech Republic / CSN

Data updates

Latest Update: 2020-12
Total number of updates: 4
Update History:
2016-10 2014-04 2014-03

Mechanical Properties

Temperature

0 - 30°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Yield Strength, Rp0.2 355 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 540 — 800 MPa view details
Elongation, A 16 % view details
Impact Energy val1
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J view details
Yield Strength, Rp0.2 51.5 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 78.3 — 116 ksi view details
Elongation, A 16 % view details
Impact Energy val1
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ft·lb view details

Physical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Density 7.7 kg/dm³ 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
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 26 — 27 W/(m∙°C) view details
Thermal Conductivity val1
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W/(m∙°C) view details
Heat Capacity 460 J/(kg∙°C) view details
Density 0.278 lb/in³ 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 15 — 15.6 BTU/(h∙ft∙°F) view details
Thermal Conductivity val1
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BTU/(h∙ft∙°F) view details
Heat Capacity 0.11 BTU/(lb∙°F) view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.10
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
11.50 – 12.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.30
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
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

EN 10213: 2007 / Steel castings for pressure purposes

Heat Treatments

  • QT1- Quenching (liquid or air cooling): 1000-1060°C Tempering: 680-730°C; QT2 - Quenching (liquid or air cooling): 1000-1060°C Tempering: 600-680°C.
  • Quenching (+QT1): 1000 - 1060°C; Tempering: 680 - 730°C. Quenching (+QT2): 1000 - 1060°C; Tempering: 600 - 680°C.