PROPRIETARY CarTech Low Expansion 43-PH Structural and constructional steels

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

Data updates

Latest Update: 2019-07
Total number of updates: 3
Update History
2018-04 2016-02

This material has 51 properties — only a subset is shown here.

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PROPRIETARY CarTech Low Expansion 43-PH Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.50
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.03
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
5.25
UNIT
%
CAS NUMBER
7440-47-3
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
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
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

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PROPRIETARY CarTech Low Expansion 43-PH Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
165 — 210 GPa
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Electrical Resistivity
1.01 Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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Poisson Coefficient
val1
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Thermal Conductivity
12.259 W/(m∙°C)
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This material has 51 properties — only a subset is shown here.

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PROPRIETARY CarTech Low Expansion 43-PH Heat Treatments

  • Age: Age hardening is a result of a two step treatment: solution annealing and aging.

    Step 1. Solution annealing:

    This is normally performed by the supplier during process anneals before shipment. It consists of rapid cooling from a temperature of 954-1066°C (1750-1950°F) to retain certain constituents in a supersaturated solution in the alloy matrix. The product can be purchased in the solution treated and cold worked condition so that only aging is required to achieve the desired strength levels.

    Step 2. Aging:

    This step consists of heat treating at 371-732°C (700-1350°F) which permits an inter-metallic compound of nickel and titanium to be precipitated within the alloy.

    It is this precipitate practice that causes the material to become stronger and also controls the thermal elastic coefficient.

    The preferred aging temperature range is 593-732°C (1100-1350°F) and is generally performed after all forming operations are completed. It may also be carried out before or after joining processes such as welding or brazing.

    Typical aging times vary from 3 hours to 5 hours at heat.

    A hard vacuum is the only method of producing bright annealed parts. Dry hydrogen, dissociated ammonia, helium or argon with low dew points will yield parts with a thin adherent gray to blue oxide film which is suitable for most products. Cracked city gas is not recommended.

PROPRIETARY CarTech Low Expansion 43-PH Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
621 — 1310 MPa
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Elongation, A
6 — 40 %
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
241 — 1207 MPa
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  • -Cross References
  • 8Composition
  • 20Mechanical Properties
  • 16Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 5Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers