PROPRIETARY LO-QPM 23 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 41 properties — only a subset is shown here.

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PROPRIETARY LO-QPM 23 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.28
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
4.0
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mo
VALUE
4.9
UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

Friedr. Lohmann GmbH, Product Data Sheets,

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PROPRIETARY LO-QPM 23 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 8.2 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 41 properties — only a subset is shown here.

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PROPRIETARY LO-QPM 23 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 (1000-1180°C)
    Tempering (560°C); Cooling down to room temperature (min. 3x, min. 1h)

PROPRIETARY LO-QPM 23 Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 265
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  • 9Cross References
  • 5Composition
  • 21Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers