PROPRIETARY BÖHLER M340 ISOPLAST Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country/Standard: PROPRIETARY

Data updates

Latest Update: 2025-01
Total number of updates: 4
Update History
2022-09 2021-02 2017-08

This material has 32 properties — only a subset is shown here.

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PROPRIETARY BÖHLER M340 ISOPLAST Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
val1
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UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
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
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

Böhler Edelstahl, Product Data Sheets / Available at: www.bohler-edelstahl.com, visited 2024

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PROPRIETARY BÖHLER M340 ISOPLAST Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 219 GPa
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Density
7.61 — 8.1 kg/dm³
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Poisson Coefficient
val1
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Thermal Conductivity
18.2 W/(m∙°C)
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Heat Capacity
val1
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J/(kg∙°C)
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This material has 32 properties — only a subset is shown here.

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PROPRIETARY BÖHLER M340 ISOPLAST Heat Treatments

  • Stress relieving: 650°C (1202°F); After temperature equalization, soak for 1 to 2 hours in neutral atmosphere. Slow cooling in furnace. After hardening and tempering, stress relieving has to be performed 50°C (90°F) below last tempering temperature.

    Hardening and tempering: 980-1000°C (1796-1832°F); For hardening hold at temperature for 15 to 30 min. An optional sub-zero treatment at -80°C (-112°F) can be applied after hardening. For highest corrosion resistance, temper once for a minimum of 2h at 250-350°C (482-662°F). For best wear resistance, temper twice for a minimum of 2h at 505-520°C (941-968°F) (without sub-zero treatment) or 490-505°C (914-941°F) (with sub-zero treatment). After each heat treatment step, material should be cooled down to approx. 30°C.

PROPRIETARY BÖHLER M340 ISOPLAST Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 260
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  • 3 Cross References
  • 7 Composition
  • 1 Mechanical Properties
  • 12 Physical Properties
  • 3 Heat Treatment
  • 1 Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • - Dimensions
  • - Tribology
  • 1 Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
  • 4 Total Suppliers