PROPRIETARY LO-QPM A11 Structural and constructional steels

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

Data updates

Latest Update: 2022-08
Total number of updates: 1
Update History

This material has 39 properties — only a subset is shown here.

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PROPRIETARY LO-QPM A11 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
2.45
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
5.2
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.5
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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

Friedr. Lohmann GmbH, Product Data Sheets,

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PROPRIETARY LO-QPM A11 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.4 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 39 properties — only a subset is shown here.

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PROPRIETARY LO-QPM A11 Heat Treatments

  • Stress relieving (600-700°C); Holding time min. 2h/ slow cool down; Furnace cooling < 500°C
    Soft annealing (850-900°C); Holding time min 3h in protective gas atmosphere; Furnace cooling < 700°C; Air cooling
    Hardening (950-1180°C)
    Tempering (560°C); cooling dow to room temperature (min. 3x, min. 1h)

PROPRIETARY LO-QPM A11 Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 280
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  • 6Cross References
  • 6Composition
  • 21Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers