55C8 (India / IS) Material Properties

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

Data updates

Latest Update: 2023-01
Total number of updates: 6
Update History:
2022-08 2021-05 2019-03 2018-07 2013-12

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 340 — 950 MPa view details
Elongation, A 7 % 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) 170 — 293 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 49.3 — 137.8 ksi view details
Elongation, A 7 % 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) 170 — 293 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
Al
VALUE
0.0200 – 0.0500
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
≤ 0.0003
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.5000 – 0.6000
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 1875: 1994 / Carbon steel billets, blooms, slabs and bars for forgings

Heat Treatments

  • Annealed: 810-840°C; Subcritical annealed: 650-700°C; Normalized: 810-840°C; Hardened: 810-840°C; Tempered: 660°C;
  • Hot worked temperature: 1150-850°C. Normalized: 810-840°C. Hardened: 810-840°C. Quenched medium: oil. Tempered: 550-660°C.