PROPRIETARY DIMO 30H Structural and constructional steels

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

Latest Update: 2017-09
Total number of updates: 1
Update History

This material has 24 properties — only a subset is shown here.

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PROPRIETARY DIMO 30H Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.2800 – 0.3500
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.6000 – 0.9000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.9500 – 1.3000
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
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

Dillinger Hütte Group, DataSheet,

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PROPRIETARY DIMO 30H Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Thermal Conductivity
46 W/(m∙°C)
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Density
7.67 — 7.86 kg/dm³
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Heat Capacity
val1
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J/(kg∙°C)
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Poisson Coefficient
val1
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This material has 24 properties — only a subset is shown here.

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PROPRIETARY DIMO 30H Heat Treatments

  • Soft annealing: 720 - 740 °C (1330 - 1360 °F), 2 - 4 h, furnace cooling hardness about 230 HB. Stress relieving: in the delivery condition max. 600 °C (1110 °F) 1 - 2 h, furnace cooling. Preheating before hardening 450 - 650 °C (840 - 1200 °F). Hardening: 840 - 860 °C (1540 - 1580 °F)/oil; for low wall thicknesses air cooling or warm bath hardening at 200 - 230 °C (390 - 450 °F) is possible. Tempering: in accordance with tempering diagram to required hardness (min. 1 h/25 mm (1 in) wall thickness).

PROPRIETARY DIMO 30H Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
840 — 985 MPa
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Brinell Hardness (HB)
265 — 310
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  • 1Cross References
  • 8Composition
  • 2Mechanical Properties
  • 11Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 1Total Suppliers