EN 17SMn20 Structural and constructional steels

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

Data updates

Latest Update: 2024-12
Total number of updates: 3
Update History
2018-10 2018-09

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EN 17SMn20 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.14 – 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
1.20 – 1.60
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.060
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 10277: 2018 / Bright steel products - Technical delivery conditions

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EN 17SMn20 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 146 properties — only a subset is shown here.

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EN 17SMn20 Heat Treatments

  • Carburizing: 880-980°C. The carburizing temperature will depend on the chemical composition of the steel, the mass of the product, and the carburizing medium. If the steels are direct hardened, in general a temperature of 950°C is not exceeded. For special procedures, for example under vacuum, higher temperatures, for example 1020°C to 1050°C, are not unusual;
    Direct and simple hardening: 830-870°C;
    Double hardening: Core-hardening: 880-920°C and case-hardening: 780-820°C; Quenching agent: water, oil, emulsion (depends, for example, on the shape of the products, the cooling conditions and the quantity of furnace filling);
    Tempering: 150-200°C (1h minimum).

EN 17SMn20 Mechanical Properties

Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
420 — 840 MPa
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Elongation, A
6 %
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Brinell Hardness (HB)
≤ 181
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Grain Size
val1
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  • 46 Cross References
  • 15 Composition
  • 58 Mechanical Properties
  • 3 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • 22 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
  • 1 Total Suppliers