B.S. HR 55 Nickel Alloys

Material group: Nonferrous Alloys / Nickel Alloys
Country / Standard: United Kingdom / B.S.

Data updates

Latest Update: 2022-03
Total number of updates: 2
Update History
2020-03

This material has 59 properties — only a subset is shown here.

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B.S. HR 55 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Ag
VALUE
≤ 0.0005
UNIT
%
CAS NUMBER
7440-22-4
CRITERIA
Al
VALUE
1.1 – 1.3
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
≤ 0.0050
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
Bi
VALUE
val1
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UNIT
%
CAS NUMBER
7440-69-9
CRITERIA
C
VALUE
val1
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UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Co
VALUE
val1
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UNIT
%
CAS NUMBER
7440-48-4
CRITERIA
Cr
VALUE
val1
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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
Ni+Co
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Pb
VALUE
val1
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UNIT
%
CAS NUMBER
7439-92-1
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
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
Zr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-67-7

BS HR 55: 1980 / Specification for Nickel-iron-chromium-molybdenum-aluminium-titanium heat-resisting alloy billets, bars, forgings and parts (Ni/Co 43.5, Cr 16.5, Mo 3.3, Al 1.2, Ti 1.2, Fe remainder)

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B.S. HR 55 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
185 — 205 GPa
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Density
7.9 — 8.8 kg/dm³
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Poisson Coefficient
0.29 — 0.34
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This material has 59 properties — only a subset is shown here.

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B.S. HR 55 Heat Treatments

  • Bars and extruded sections for machining: Delivery condition - Solution treated: Θ = (1 040 ±10) °C / t = 2 h / AC or OQ. Use condition - Solution treated + precipitation treated: Delivery condition + Θ = (800 ±10) °C / t = 2 h / AC + Θ = (700 ±10) °C / t = 16 h / AC; Extruded sections for subsequent forming: Delivery condition - Softened: Θ = (1 040 ±10) °C / t = 2 h / WQ; Forgings: Delivery = Use condition - Solution treated + precipitation treated: Θ = (1 040 ±10) °C / t = 2 h / AC or OQ + Θ = (800 ±10) °C / t = 2 h / AC + Θ = (700 ±10) °C / t = 16 h / AC. Billets and bars for forging: Solution treated + precipitation treated Θ = (1 040 ±10) °C / t = 2 h / AC or OQ + Θ = (800 ±10) °C / t = 2 h / AC + Θ = (700 ±10) °C / t = 16 h / AC
  • Softening treatment: The softening treatment shall consist of heating at a temperature of 1040°C for 2 h, followed by quenching in water.
    Solution treatment: The solution treatment shall consist of heating at a temperature of 104 °C for 2 h, followed by cooling in air or quenching in oil.
    Final heat treatment:
    Stage 1: Heat at a temperature of 800°C for 2 h, followed by cooling in air
    Stage 2: Heat at a temperature of 700°C for 16 h, followed by cooling in air.

B.S. HR 55 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 740 MPa
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Elongation, A
≥ 15 %
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Yield Strength, Rp0.2
≥ 415 MPa
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  • 1Cross References
  • 35Composition
  • 15Mechanical Properties
  • 6Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
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