GB A50400 Structural and constructional steels

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

Data updates

Latest Update: 2026-03
Total number of updates: 2
Update History
2016-07

This material has 112 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 A50400 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.38 – 0.43
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.70 – 0.90
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.30
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
Mo
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-02-0
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 3077: 2015 / Alloy structure steels

Looking for full material performance data?

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

GB A50400 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 112 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 A50400 Heat Treatments


  • Normalizing at 890°C or 850°C, cooling in oil; Tempering at 560-580°C, cooling in air.
    Normalizing at 890°C or 850°C, cooling in oil; Twice tempering at 220°C, cooling in air.
  • Recommended heat treatment: Quenched at 850 ± 15°C, tempered at 570 ± 50°C

GB A50400 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
≥ 930 MPa
Unlock full details
Full data available with free access View Complete Material Data
Brinell Hardness (HB)
≤ 269
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
Grain Size
val1
Full data available with free access View Complete Material Data
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
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
Impact Energy
val1
Full data available with free access View Complete Material Data
J
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

GB A50400 International Equivalent Materials


Showing 15 of 56 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
AISI
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
AISI
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
PN
COUNTRY / PRODUCER
Poland
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
KS
COUNTRY / PRODUCER
Korea
EQUIVALENCE CATEGORY
Implicit
MATERIAL
STANDARD
KS
COUNTRY / PRODUCER
Korea
EQUIVALENCE CATEGORY
Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

Need the full list of 56 international equivalents?

See all 56 equivalent grades with detailed mapping by standard, producer and equivalence category.

View All Equivalents ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

Optimize material selection for your application - Book A Demo

  • 56Cross References

  • 9Composition
  • 29Mechanical Properties
  • 3Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability

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

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

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

  • 13Total Suppliers