DEFSTAN Q1 (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 128 properties — only a subset is shown here.

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DEFSTAN Q1 (Navy) Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.0150 – 0.0600
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
As
VALUE
≤ 0.0300
UNIT
%
CAS NUMBER
7440-38-2
CRITERIA
C
VALUE
≤ 0.1800
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
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 02-736(PT1)/3: 2011 / Requirements For Q1 (Navy) Quality Steel - Part 1: Plates

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DEFSTAN Q1 (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 128 properties — only a subset is shown here.

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DEFSTAN Q1 (Navy) Heat Treatments

  • A suitable austenitising temperature, not exceeding 955°C. The tempering treatment is to be carried out within a temperature range of 620°C to 675°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. The castings should normally be water quenched from the stress relief temperature. Forced air cooling may be applied after stress relief.
  • The final tempering temperature is to be in the range 600 - 675°C.

DEFSTAN Q1 (Navy) Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
611 — 784 MPa
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Brinell Hardness (HB)
207 — 248
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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
val1
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MPa
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DEFSTAN Q1 (Navy) International Equivalent Materials

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MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
LR Type 550
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%

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  • 2Cross References
  • 76Composition
  • 30Mechanical Properties
  • 3Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 15Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers