GB GCr15 Structural and constructional steels

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

Data updates

Latest Update: 2026-01
Total number of updates: 9
Update History

This material has 571 properties — only a subset is shown here.

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GB GCr15 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.050
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
As
VALUE
≤ 0.04
UNIT
%
CAS NUMBER
7440-38-2
CRITERIA
As+Sb+Sn
VALUE
≤ 0.075
UNIT
%
CAS NUMBER
CRITERIA
C
VALUE
val1
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UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Ca
VALUE
val1
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UNIT
%
CAS NUMBER
7440-70-2
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
O
VALUE
val1
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UNIT
%
CAS NUMBER
7782-44-7; 17778-80-2
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
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6

GB/T 18254: 2016 / High-carbon chromium bearing steel

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GB GCr15 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 212 GPa
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Density
val1
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kg/dm³
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Electrical Resistivity
0.224 — 0.246 Ω∙mm²/m
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Electrical Conductivity
val1
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S/m
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Poisson Coefficient
val1
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This material has 571 properties — only a subset is shown here.

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GB GCr15 Heat Treatments

  • Heated to 820°C - 850°C (840°C - 880°C including molybdenum steel);
    Heating time: According to the diameter or thickness of the sample, heat preservation for 1.5 min per 1 mm, oil cooled;
    Tempered at temperature of 150°C - 170°C;
    Tempering time: 2 h - 4 h
  • Quenching temperature: 820–850 °C (for Al-containing steels: 840-880°C);
    Quenching holding time: about 1.5 min for each 1 mm of specimen diameter or thickness;
    Quenching medium: oil;
    Tempering temperature: about 150°C;
    Tempering time: 1-2 h

GB GCr15 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
590 — 1200 MPa
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Brinell Hardness (HB)
179 — 300
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Impact Strength
val1
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kJ/m²
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Grain Size
val1
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Rockwell Hardness (HR)
val1
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GB GCr15 International Equivalent Materials

Showing 15 of 169 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
100Cr6
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Official
MATERIAL
100Cr6
STANDARD
IS
COUNTRY / PRODUCER
India
EQUIVALENCE CATEGORY
Official
MATERIAL
100Cr6
STANDARD
TCVN
COUNTRY / PRODUCER
Vietnam
EQUIVALENCE CATEGORY
Official
MATERIAL
100 Cr 6 RR
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Implicit
MATERIAL
En31
STANDARD
B.S.
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Implicit
MATERIAL
14 100
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Implicit
MATERIAL
100 Cr 6
STANDARD
EU
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Implicit
MATERIAL
9Cr2
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
Cr2
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
102 Cr 6
STANDARD
EU
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Implicit
MATERIAL
45H
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Implicit
MATERIAL
H
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Implicit
MATERIAL
NC4
STANDARD
PN
COUNTRY / PRODUCER
Poland
EQUIVALENCE CATEGORY
Implicit
MATERIAL
2258
STANDARD
SS
COUNTRY / PRODUCER
Sweden
EQUIVALENCE CATEGORY
Implicit
MATERIAL
102 Cr 6 KU
STANDARD
UNI
COUNTRY / PRODUCER
Italy
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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  • 169Cross References
  • 59Composition
  • 91Mechanical Properties
  • 25Physical Properties
  • 2Heat Treatment
  • 86Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 1Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 138Total Suppliers