15C8 (India / IS) Material Properties

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

Data updates

Latest Update: 2026-03
Total number of updates: 7
Update History:
2023-04 2022-08 2017-09 2017-07 2015-09 2013-12

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 320 — 850 MPa view details
Elongation, A 11 % 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) 105 — 180 view details
Grain Size val1
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mm view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 46.4 — 123.3 ksi view details
Elongation, A 11 % 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) 105 — 180 view details
Grain Size val1
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in 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
0.10 – 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.40
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.30
UNIT
%
CAS NUMBER
7440-50-8
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

IS 1875: 2025 / Steel Ingots, Billets, Blooms, Slabs, and Bars for Forging - Specification

Heat Treatments

  • Annealed: 880-950°C; Subcritical annealed: 630-700°C; Normalized: 880-950°C; Carburized: 880-950°C; Refined after carburized: 880-950°C; Hardened: 900-950°C; Hardened after carburized: 760-780°C; Tempered: max. 650°C; Forging/rolling temperature:1250°C;
  • Carburized: 900-940°C. Direct and single hardened: 830-860°C. Core hardened: 870-890°C. Case hardened: 780-820°C. Quenching media: water, thermal bath at 140-220°C. Tempered: 150-180°C.