GB 019Cr25Mo4Ni4NbTi Stainless steels

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

Data updates

Latest Update: 2024-10
Total number of updates: 4
Update History
2019-03 2016-12 2015-07

This material has 104 properties — only a subset is shown here.

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GB 019Cr25Mo4Ni4NbTi Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.025
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
24.50 – 26.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 1.00
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
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
CRITERIA
Ti+Nb
VALUE
val1
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UNIT
%
CAS NUMBER

GB/T 30065: 2013 / Welded ferritic stainless steel tubes for feedwater heater

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GB 019Cr25Mo4Ni4NbTi Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 220 GPa
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Density
val1
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kg/dm³
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Thermal Conductivity
val1
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W/(m∙°C)
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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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This material has 104 properties — only a subset is shown here.

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GB 019Cr25Mo4Ni4NbTi Heat Treatments

  • Heat treated at min 1000°C and rapid cooled.
  • Heat treated at min. 1000°C, fast cooled.

GB 019Cr25Mo4Ni4NbTi Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 620 MPa
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Brinell Hardness (HB)
≤ 270
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Elongation, A
≥ 20 %
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Rockwell Hardness (HR)
val1
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Vickers Hardness (HV)
val1
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Yield Strength, Rp0.2
val1
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MPa
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GB 019Cr25Mo4Ni4NbTi International Equivalent Materials

Showing 15 of 20 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
A 959 Type 25-4-4
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
SA-240 S44635
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
S44635
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
SA-268 25-4-4
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SA-803 25-4-4
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
SA-268 S44635
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 176 S44635
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 268 25-4-4
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 803 Grade 25-4-4
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 240 S44635
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 268 S44635
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
A 240 S44535
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
S44635
STANDARD
GOST
COUNTRY / PRODUCER
Russia
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
25-4-4
STANDARD
NMX
COUNTRY / PRODUCER
Mexico
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
MONIT
STANDARD
PROPRIETARY
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
Implicit

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

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  • 20Cross References
  • 40Composition
  • 16Mechanical Properties
  • 16Physical Properties
  • 3Heat Treatment
  • -Metallography
  • -Machinability
  • 3Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • 4Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 2Total Suppliers