ASTM A 681 Type O7 Tool steels

Material group: Ferrous Alloys / Tool steels
Country / Standard: United States / ASTM

Data updates

Latest Update: 2022-12
Total number of updates: 3
Update History
2022-04 2016-01

This material has 167 properties — only a subset is shown here.

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ASTM A 681 Type O7 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
1.10 – 1.30
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.35 – 0.85
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu+Ni
VALUE
≤ 0.75
UNIT
%
CAS NUMBER
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
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
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

A681: 2024 / Standard Specification for Tool Steels Alloy

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ASTM A 681 Type O7 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.72 — 8 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 167 properties — only a subset is shown here.

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ASTM A 681 Type O7 Heat Treatments


  • Preheat: 649°C (1200°F); Austenitizing: Salt Bath: 857°C (1575°F), Controlled Atmosphere Furnaces: 871°C (1600°F); Austenitizing time: 5-15 minutes; Quench Medium: Oil; Tempering: 204°C (400°F), Single-tempered for 2h

ASTM A 681 Type O7 Mechanical Properties


Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 255
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Rockwell Hardness (HR)
≥ 62
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ASTM A 681 Type O7 International Equivalent Materials


Showing 15 of 59 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Implicit
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STANDARD
DIN
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Germany
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Implicit
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STANDARD
DIN
COUNTRY / PRODUCER
Germany
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Implicit
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Germany
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Germany
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STANDARD
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Japan
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STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
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STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
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Implicit
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STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
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Implicit
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STANDARD
EN
COUNTRY / PRODUCER
European Union
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Implicit
MATERIAL
STANDARD
EN
COUNTRY / PRODUCER
European Union
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STANDARD
GOST
COUNTRY / PRODUCER
Russia
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MATERIAL
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit

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  • 59Cross References

  • 10Composition
  • 3Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • 40Dimensions
  • -Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • 51Total Suppliers