PROPRIETARY BÖHLER N685 EXTRA Stainless steels

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

Data updates

Latest Update: 2021-02
Total number of updates: 2
Update History
2016-08

This material has 262 properties — only a subset is shown here.

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PROPRIETARY BÖHLER N685 EXTRA Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.90
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
17.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.40
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

Böhler Edelstahl, Product Data Sheets,

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PROPRIETARY BÖHLER N685 EXTRA Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Thermal Conductivity
val1
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W/(m∙°C)
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Electrical Resistivity
val1
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Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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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 262 properties — only a subset is shown here.

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PROPRIETARY BÖHLER N685 EXTRA Heat Treatments

  • Hot forming: 1100 - 800°C
    Annealing: 780 - 840°C
    Hardening: 1000 - 1050°C, oil
    Tempering: 100 - 300°C.
    Structure after heat treatment:
    - after annealed: Ferrite + Carbide
    - after hardened: Martensite + Carbide
    - after hardened and tempered: Martensite + Carbide

PROPRIETARY BÖHLER N685 EXTRA Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 265
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Rockwell Hardness (HR)
57 — 60
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PROPRIETARY BÖHLER N685 EXTRA International Equivalent Materials

Showing 15 of 131 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
BÖHLER N685 ISOEXTRA
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
8Cr17
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
N685
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
X89CrMoV18-1
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Implicit
MATERIAL
SA-276 440B
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
1.3549
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Implicit
MATERIAL
X89CrMoV18-1
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Implicit
MATERIAL
9Cr18MoV
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
S44080
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
S46990
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
85Cr17
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STS 440B
STANDARD
KS
COUNTRY / PRODUCER
Korea
EQUIVALENCE CATEGORY
Implicit
MATERIAL
440B
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
440B/1
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit
MATERIAL
51440B
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 131Cross References
  • 6Composition
  • 3Mechanical Properties
  • 18Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 103Total Suppliers