55SiCr(A) (China / GB) Material Properties

Other designations:
Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: China / GB

Data updates

Latest Update: 2017-05
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 1450 — 1750 MPa view details
Elongation, A 6 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) ≤ 321 view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 210.3 — 253.8 ksi view details
Elongation, A 6 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) ≤ 321 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
0.50 – 0.60
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.50 – 0.80
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.20
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
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

GB/T 19530: 2004 / Hot-rolled wire rod for quenched and tempered springs

Heat Treatments

  • Quenching in oil: 860°C; Tempering: 450°C.