GB S51740 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: China / GB
Indicative price:

Data updates

Latest Update: 2025-10
Total number of updates: 6
Update History
2024-10 2024-05 2017-04 2016-07 2015-12

This material has 1378 properties — only a subset is shown here.

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GB S51740 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.07
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
15.00 – 17.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
3.00 – 5.00
UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
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 1220: 2007 / Stainless steel bars

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GB S51740 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Thermal Conductivity
val1
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W/(m∙°C)
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Electrical Resistivity
val1
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Ω∙mm²/m
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Density
val1
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kg/dm³
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Electrical Conductivity
val1
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S/m
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Heat Capacity
val1
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J/(kg∙°C)
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Poisson Coefficient
val1
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Service Temperature
val1
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°C
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This material has 1378 properties — only a subset is shown here.

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GB S51740 Heat Treatments

  • Heat treatment 1: Quenched at 1025 - 1055°C, oil or air cooled. Tempered at 645 - 655°C, 4h, air cooled. Heat treatment 2: Quenched at 1025 - 1055°C, oil or air cooled. Heat treated at 810 - 820°C, 0.5h, air cooled. Tempered at 565 - 575°C, 3h, air cooled. Heat treatment 3: Quenched at 1025 - 1055°C, oil or air cooled. Heat treated at 810 - 820°C, 0.5h, air cooled. Tempered at 600 - 610°C, 5h, air cooled. Annealed at 740 - 850°C, slow cooled. Hot tempered at 660 - 680°C, rapid cooled.
  • Heat treated at 1020 - 1060°C, air cooled. Heat treated at 470 - 630°C, air cooled.

GB S51740 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
790 — 1255 MPa
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Brinell Hardness (HB)
248 — 477
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Elongation, A
≥ 3 %
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Yield Strength, Rp0.2
val1
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MPa
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Reduction of Area
val1
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%
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Rockwell Hardness (HR)
val1
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GB S51740 International Equivalent Materials

Showing 15 of 602 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
1.4542
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Official
MATERIAL
X5CrNiCuNb16-4
STANDARD
DIN
COUNTRY / PRODUCER
Germany
EQUIVALENCE CATEGORY
Official
MATERIAL
X5CrNiCuNb16-4
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Official
MATERIAL
Z 6 CNU 17.04
STANDARD
AFNOR NF
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Official
MATERIAL
1.4542
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Official
MATERIAL
X5CrNiCuNb16-4
STANDARD
EN
COUNTRY / PRODUCER
European Union
EQUIVALENCE CATEGORY
Official
MATERIAL
A 564 630
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
A 693 Type 630
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
A 705 630
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
A 1028 Grade F
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
A 959 Type 630
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
X5CrNiCuNb16-4
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Official
MATERIAL
SUS630
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Official
MATERIAL
17-4PH
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
S17400
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official

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

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  • 602Cross References
  • 64Composition
  • 179Mechanical Properties
  • 45Physical Properties
  • 4Heat Treatment
  • 12Metallography
  • -Machinability
  • 33Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 26Dimensions
  • -Tribology
  • -Corrosion
  • 12Ageing
  • -Weatherability
  • -Irradiation
  • 401Total Suppliers