GB 55SiCr(A) Structural and constructional steels

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

Data updates

Latest Update: 2026-03
Total number of updates: 2
Update History
2017-05

This material has 240 properties — only a subset is shown here.

Unlock full material properties, including detailed values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

GB 55SiCr(A) Chemical 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
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-21-3

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

Looking for full material performance data?

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

GB 55SiCr(A) Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
Unlock full details
Full data available with free access View Complete Material Data
Density
7.67 — 7.86 kg/dm³
Unlock full details
Full data available with free access View Complete Material Data
Poisson Coefficient
0.27 — 0.3
Unlock full details
Full data available with free access View Complete Material Data

This material has 240 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

GB 55SiCr(A) Heat Treatments

  • Quenching in oil: 860°C; Tempering: 450°C.
    The heat treatment temperatures are allowed to be adjusted within the following ranges: Quenching: ± 50°C
    Tempering: ± 30°C (according to the purchaser’s requirements)

GB 55SiCr(A) Mechanical Properties


Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
Full data available with free access View Complete Material Data
MPa
Unlock full details
Full data available with free access View Complete Material Data
Tensile Strength
1450 MPa
Unlock full details
Full data available with free access View Complete Material Data
Elongation, A
6 %
Unlock full details
Full data available with free access View Complete Material Data
Reduction of Area
val1
Full data available with free access View Complete Material Data
%
Unlock full details
Full data available with free access View Complete Material Data
Brinell Hardness (HB)
≤ 321
Unlock full details
Full data available with free access View Complete Material Data

Need complete mechanical properties to make the right choice?

Get complete data on strength, hardness, fatigue, and more.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

Optimize material selection for your application - Book a Demo

  • 159 Cross References

  • 16 Composition
  • 9 Mechanical Properties
  • 3 Physical Properties
  • 1 Heat Treatment
  • - Metallography
  • - Machinability

  • - Stress-Strain
  • - Formability
  • - Fatigue
  • - Fracture
  • - Creep

  • - Joints
  • - Coatings
  • 1 Dimensions
  • - Tribology

  • - Corrosion
  • - Ageing
  • - Weatherability
  • - Irradiation

  • 51 Total Suppliers