GB MFT8B Structural and constructional steels

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

Data updates

Latest Update: 2025-07
Total number of updates: 1
Update History

This material has 13 properties — only a subset is shown here.

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GB MFT8B Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.18 – 0.23
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
0.60 – 1.20
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.025
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 28906: 2025 / Hot-rolled steel wire rod for cold heading

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GB MFT8B Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 13 properties — only a subset is shown here.

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GB MFT8B Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 630 MPa
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Elongation, A
≥ 20 %
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Reduction of Area
≥ 52 %
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  • 1Cross References
  • 5Composition
  • 3Mechanical Properties
  • 3Physical Properties
  • -Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 1Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers