DEFSTAN Q2 (Navy) Cast steels

Material group: Ferrous Alloys / Cast steels
Country / Standard: United Kingdom / DEFSTAN

Data updates

Latest Update: 2017-04
Total number of updates: 1
Update History

This material has 127 properties — only a subset is shown here.

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DEFSTAN Q2 (Navy) Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≥ 0.0150
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
As
VALUE
≤ 0.0300
UNIT
%
CAS NUMBER
7440-38-2
CRITERIA
C
VALUE
0.0900 – 0.1500
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
CEV
VALUE
val1
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UNIT
%
CAS NUMBER
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
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
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
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
P+S
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
Sb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-36-0
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Sn
VALUE
val1
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UNIT
%
CAS NUMBER
7440-31-5
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

DEFSTAN 02-826(PT1)/1: 2000 / Requirements For Q2 (Navy) Quality Steel - Part 1: Plates

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DEFSTAN Q2 (Navy) 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 127 properties — only a subset is shown here.

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DEFSTAN Q2 (Navy) Heat Treatments

  • A suitable austenitising temperature, not exceeding 955°C. The tempering treatment is to be carried out at a temperature not less than 620°C. Water quenching from the tempering temperature is mandatory. When necessary, double tempering is permitted. When stress relief is specified by the purchaser, it is to be carried out at a temperature at least 20°C below the final tempering temperature, but not less than 600°C. Water quenching from stress relief temperature is mandatory.
  • Final tempering temperature is to be not less than 595°C.

DEFSTAN Q2 (Navy) Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
726.3 — 877.8 MPa
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Elongation, A
≥ 15 %
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
690 — 790 MPa
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  • -Cross References
  • 74Composition
  • 29Mechanical Properties
  • 3Physical Properties
  • 4Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 17Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers