1.6311 (Germany / DIN) Material Properties

Other designations: , ,
Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2024-07
Total number of updates: 23
Update History:
2024-03 2024-01 2023-12 2023-09 2023-02 2023-01 2022-12 2022-11 2022-08 2022-04 2022-03 2021-08 2021-07 2021-05 2020-03 2019-09 2017-10 2016-04 2015-04 2014-07 2014-06 2014-04

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Yield Strength, Rp0.2 390 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 550 — 750 MPa view details
Elongation, A 14 % view details
Impact Energy val1
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J view details
Impact Energy val1
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J view details
Yield Strength, Rp0.2 56.6 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 79.8 — 108.8 ksi view details
Elongation, A 14 % view details
Impact Energy val1
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ft·lb view details
Impact Energy val1
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ft·lb view details

Physical Properties

Temperature

≤ 0°C
0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Dynamic Modulus of Elasticity val1
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GPa view details
Dynamic Modulus of Elasticity val1
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GPa view details
Dynamic Modulus of Elasticity val1
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GPa view details
Dynamic Modulus of Elasticity val1
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GPa view details
Dynamic 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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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
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 44 — 44.3 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
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 0.235 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
Electrical Conductivity val1
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S/m view details
Electrical Conductivity val1
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S/m view details
Electrical Conductivity val1
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S/m view details
Electrical Conductivity val1
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S/m view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Dynamic Modulus of Elasticity val1
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ksi view details
Dynamic Modulus of Elasticity val1
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ksi view details
Dynamic Modulus of Elasticity val1
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ksi view details
Dynamic Modulus of Elasticity val1
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ksi view details
Dynamic 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
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 25.4 — 25.6 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
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 391 E-06 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
Electrical Conductivity val1
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S/in view details
Electrical Conductivity val1
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S/in view details
Electrical Conductivity val1
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S/in view details
Electrical Conductivity val1
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S/in view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.1700 – 0.2300
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.5000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
1.0000 – 1.5000
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

Steels for larger forgings; quality regulations, SEW 550 / 1976

Heat Treatments

  • <b>Quenching and tempering</b>: Hardened at 870-940°C, after reaching the temperature in the entire cross-section. Cooled in air, quenched in oil or water according to the thickness. <br /> Tempered at 610-690°C, held for at least 30 min, cooled in still air or in furnace. <br /><br /> <b>Stress relieving</b>: Heated at 580-620°C, holding time for: <br /> <br /> t ≤ 15 mm ( ≥ 15 min.) <br /><br /> 15 < t ≤ 30 mm ( ≥ 30 min.) <br /><br /> 30 < t ≤ 350 mm ( ≥ 60 min.) <br /><br /> t > 350 mm (approx. 120 min)
  • Operation of hardening - 870-940°C; Hot working 1100-850°C; Soft annealing, 580-620°C; Stress relieving; Temper 610-690°C.