JIS 20Cr4 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: Japan / JIS
Indicative price:

Data updates

Latest Update: 2020-01
Total number of updates: 1
Update History

This material has 197 properties — only a subset is shown here.

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JIS 20Cr4 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.17 – 0.23
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.90 – 1.20
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.60 – 0.90
UNIT
%
CAS NUMBER
7439-96-5
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

G 7105: 2000 / Heat-treatable steels, alloy steels and free-cutting steels - Part 18: Bright products of unalloyed and low alloy steels

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JIS 20Cr4 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 197 properties — only a subset is shown here.

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JIS 20Cr4 Heat Treatments


  • Carburizing: 880-980°C; Hardening: 820-860°C; Double hardening: 860-900°C (Core hardening) and 780-820°C (Case hardening); Tempering: 150-200°C (min. 1 hour). End quench test austenitizing temperature 900±5°C.
  • G+M - ground and treated to improve machinability G+TA - ground and annealed to maximum hardness requirements M+TC - treated to improve machinability and cold drawn P+M - peeled and treated to improve machinability P+TA - peeled and annealed to maximum hardness requirements TC+M - cold drawn and treated to improve machinability TC+TA - cold drawn and annealed to maximum hardness requirements. Carburizing: 880-980°C; Hardening: 820-860°C; Double hardening: 860-900°C and 780-820°C;Tempering: 150-200°C (min. 1 hour).

JIS 20Cr4 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
670 — 1170 MPa
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Brinell Hardness (HB)
149 — 297
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Elongation, A
≥ 9 %
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Impact Energy
val1
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J
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Yield Strength, Rp0.2
val1
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MPa
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JIS 20Cr4 International Equivalent Materials


Showing 15 of 74 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
CSN
COUNTRY / PRODUCER
Czech Republic
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
MSZ
COUNTRY / PRODUCER
Hungary
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PN
COUNTRY / PRODUCER
Poland
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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  • 74Cross References

  • 12Composition
  • 36Mechanical Properties
  • 3Physical Properties
  • 3Heat Treatment
  • -Metallography
  • -Machinability

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

  • -Joints
  • -Coatings
  • 19Dimensions
  • -Tribology

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

  • 50Total Suppliers