GB 9Cr3Mo Tool steels

Material group: Ferrous Alloys / Tool steels, Ferrous Alloys / Structural and constructional steels
Country/Standard: China / GB

Data updates

Latest Update: 2026-03
Total number of updates: 3
Update History
2025-12 2016-04

This material has 53 properties — only a subset is shown here.

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GB 9Cr3Mo Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
As
VALUE
≤ 0.02
UNIT
%
CAS NUMBER
7440-38-2
CRITERIA
Bi
VALUE
≤ 0.02
UNIT
%
CAS NUMBER
7440-69-9
CRITERIA
C
VALUE
0.85 – 0.95
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
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
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
Pb
VALUE
val1
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UNIT
%
CAS NUMBER
7439-92-1
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Sb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-36-0
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Sn
VALUE
val1
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UNIT
%
CAS NUMBER
7440-31-5

GB/T 13314: 2025 / Forged steel work rolls for cold rolling - General technical specifications

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GB 9Cr3Mo Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 8 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 53 properties — only a subset is shown here.

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GB 9Cr3Mo Heat Treatments

  • Quenched at 890 - 950°C in oil or cooled in air.

GB 9Cr3Mo Mechanical Properties

Temperature

PROPERTY / VALUE
Brinell Hardness (HB)
≤ 255
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Rockwell Hardness (HR)
64
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  • 2 Cross References
  • 40 Composition
  • 3 Mechanical Properties
  • 6 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability
  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep
  • - Joints
  • - Coatings
  • 1 Dimensions
  • - Tribology
  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation
  • - Total Suppliers