C90 (Italy / UNI) Material Properties

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Italy / UNI

Data updates

Latest Update: 2021-12
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 689 MPa view details
Elongation, A 12 — 19 % view details
Impact Energy val1
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J view details
Impact Energy val1
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J view details
Brinell Hardness (HB) ≤ 255 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 99.9 ksi view details
Elongation, A 12 — 19 % view details
Impact Energy val1
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ft·lb view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) ≤ 255 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
0.85 – 0.95
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
0.40 – 0.60
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.035
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

UNI 8893: 1986 / Hot rolled flat-finished products of special unalloyed and alloyed steel. Strips for springs. Qualities, requirements and tests

Heat Treatments

  • Material is normally supplied in the hot rolled condition. However, subject to prior agreement, it may be supplied in one of the following conditions: Soft Annealed. Spheroidise Annealed.
  • Quenched and tempered > 621°C