IS 20Ni7Cr2Mo2 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: India / IS
Indicative price:

Data updates

Latest Update: 2026-03
Total number of updates: 3
Update History
2022-08 2013-11

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IS 20Ni7Cr2Mo2 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.17 – 0.22
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.40 – 0.60
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.45 – 0.65
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
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

IS 4432: 1994 / Case hardening steels

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IS 20Ni7Cr2Mo2 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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IS 20Ni7Cr2Mo2 Heat Treatments


  • Quenched: 870°C ±5°C. Carburized: 890-940°C. Direct and single hardened: 810-840°C. Core hardened: 830-870°C. Case hardened: 780-820°C. Quenching media: oil, thermal bath, poly quench. Tempered: 180-220°C.

IS 20Ni7Cr2Mo2 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
800 — 1350 MPa
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Brinell Hardness (HB)
170 — 263
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Elongation, A
≥ 8 %
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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IS 20Ni7Cr2Mo2 International Equivalent Materials


Showing 3 of 43 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
IRAM
COUNTRY / PRODUCER
Argentina
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
NBR
COUNTRY / PRODUCER
Brazil
EQUIVALENCE CATEGORY
Composition 100%

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  • 43Cross References

  • 37Composition
  • 15Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
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