PN P55A Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: Poland / PN

Data updates

Latest Update: 2014-07
Total number of updates: 1
Update History

This material has 53 properties — only a subset is shown here.

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PN P55A Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≥ 0.02
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.52 – 0.60
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.30
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cr+Mo+Ni
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Cu
VALUE
val1
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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

PN-H-84027-06: 1984 / Steel for railway - Tires for wheels sets of rail vehicles - Grades

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PN P55A 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 53 properties — only a subset is shown here.

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PN P55A Heat Treatments

  • Forging and rolling: 1180-850°C; Normalizing at 810-840ºC and cooling in air; Hardening at 810-840ºC then cooling in water (Hardening 820-850ºC then cooling in oil); Tempering 480-630ºC and cooling in air.

PN P55A Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
800 — 920 MPa
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Brinell Hardness (HB)
≥ 233
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Elongation, A
≥ 12 %
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Impact Strength
val1
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kJ/m²
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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  • 1Cross References
  • 24Composition
  • 24Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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