42Cr4Mo2 (India / IS) Material Properties

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

Data updates

Latest Update: 2023-05
Total number of updates: 3
Update History:
2022-04 2013-10

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 610 MPa view details
Elongation, A 10 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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J view details
Brinell Hardness (HB) 201 — 341 view details
Rockwell Hardness (HR) val1
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view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 88.5 ksi view details
Elongation, A 10 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) 201 — 341 view details
Rockwell Hardness (HR) 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
C
VALUE
0.38 – 0.45
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.90 – 1.20
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.50 – 0.80
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Nb+Ti+V+B
VALUE
val1
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UNIT
%
CAS NUMBER
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 3930: 1994 / Flame and induction hardening steels

Heat Treatments

  • Hot worked temperature: 1200-850°C. Normalized: 850-880°C. Hardened: 850-880°C. Quenched medium: oil. Tempered: 500-720°C.
  • Hot worked: 850-1200°C. Soft annealed: 650-700°C. Hardened: 830-860°C, oil quench; tempered: 530-670°C. Hardened: 840-870°C, water quench; tempered: 530-670°C.