40Cr4Mo3 (India / IS) Material Properties

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

Data updates

Latest Update: 2022-08
Total number of updates: 3
Update History:
2021-05 2020-03

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 690 — 1150 MPa view details
Elongation, A 10 % view details
Impact Energy val1
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J view details
Brinell Hardness (HB) 170 — 341 view details
Grain Size val1
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view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 100.1 — 166.8 ksi view details
Elongation, A 10 % view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) 170 — 341 view details
Grain Size val1
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view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.02 – 0.05
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
≤ 0.0003
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.35 – 0.45
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cr+Mo+Ni
VALUE
val1
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UNIT
%
CAS NUMBER
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Cu+10Sn
VALUE
val1
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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
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
CRITERIA
Sn
VALUE
val1
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UNIT
%
CAS NUMBER
7440-31-5
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

IS 4367: 1991 / Alloy steel forgings for general industrial use - Specification

Heat Treatments

  • Hardened and quenched: hardened: 850-880°C, quenched in an oil
  • Normalized: 850-880°C; Hardened: 850-880°C; Tempered: max. 720°C;