PROPRIETARY GNB200 Structural and constructional steels

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

Data updates

Latest Update: 2025-03
Total number of updates: 1
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PROPRIETARY GNB200 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.02
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.21 – 0.27
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.20 – 1.80
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Fe
VALUE
val1
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UNIT
%
CAS NUMBER
7439-89-6
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
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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

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PROPRIETARY GNB200 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.861 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 32 properties — only a subset is shown here.

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PROPRIETARY GNB200 Heat Treatments

  • Subcritical anneal: at 649 - 677C (1200 - 1250°F) to soften
    Hardening: 871 - 927°C (1600 - 1700°F) for 1 - 4 hours, fan cool or faster to room temperature.
    Normalizing: 975°C (1787°F), air cool to room temperature
    Stress relieving: 38°C (100°F) below tempering temperature
    Tempering: 604 - 632°C (1120 - 1170°F) for 2 - 4 hours, air cool to room temperature

PROPRIETARY GNB200 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
1158 — 1207 MPa
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Brinell Hardness (HB)
295
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Elongation, A
21 — 28 %
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Reduction of Area
val1
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%
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
val1
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MPa
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  • -Cross References
  • 13Composition
  • 13Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers