1.8550 (European Union / EN) Material Properties

Other designations:
Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: European Union / EN

Data updates

Latest Update: 2022-09
Total number of updates: 2
Update History:
2016-04

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 800 — 1100 MPa view details
Elongation, A 10 % view details
Impact Energy val1
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J view details
Brinell Hardness (HB) ≤ 248 view details
Vickers Hardness (HV) val1
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Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 116 — 159.5 ksi view details
Elongation, A 10 % view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) ≤ 248 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 — 210 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
Shear Modulus val1
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GPa view details
Shear Modulus val1
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GPa view details
Shear Modulus val1
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GPa view details
Shear Modulus 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
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 35 W/(m∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Electrical Resistivity 0.31 Ω∙mm²/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
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
Shear Modulus val1
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ksi view details
Shear Modulus val1
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ksi view details
Shear Modulus val1
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ksi view details
Shear Modulus 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
Thermal Conductivity 20.2 BTU/(h∙ft∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Electrical Resistivity 515 E-06 Ω∙circular·mil/ft view details
Electrical Conductivity val1
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S/in view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.80 – 1.20
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.30 – 0.37
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.50 – 1.80
UNIT
%
CAS NUMBER
7440-47-3
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

EN 10085: 2001 / Nitriding steels - Technical delivery conditions

Heat Treatments

  • Soft annealing: 650-700°C; Hardening: 870-930°C (0,5 h minimum), oil or water cooling; Tempering: 580-700°C (1 h minimum); Nitriding: 480-570°C.