NB 10Cr9Mo1VNbN Structural and constructional steels

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

Data updates

Latest Update: 2026-05
Total number of updates: 2
Update History
2018-05

This material has 202 properties — only a subset is shown here.

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NB 10Cr9Mo1VNbN Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.020
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.08 – 0.12
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
8.00 – 9.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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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
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
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2
CRITERIA
Zr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-67-7

NB/T 47008: 2017 / Carbon and alloy steel forgings for pressure equipment

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NB 10Cr9Mo1VNbN 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 202 properties — only a subset is shown here.

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NB 10Cr9Mo1VNbN Heat Treatments

  • Normalizing and tempering: normalizing temperature 1040°C-1080°C; tempering temperature 750°C-780°C. The steel pipe with thickness > 70mm can be quenched and tempered, quenching temperature is not lower than 1040°C, tempering temperature is 750°C-790°C.
  • Tempering temperature at min. 740°C.

NB 10Cr9Mo1VNbN Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
585 — 755 MPa
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Brinell Hardness (HB)
185 — 250
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Elongation, A
≥ 18 %
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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Rockwell Hardness (HR)
val1
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Vickers Hardness (HV)
val1
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NB 10Cr9Mo1VNbN International Equivalent Materials

Showing 10 of 104 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
10Cr9Mo1VNbN
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
AF91
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
10Cr9Mo1VNbN
STANDARD
YB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
SA-213 Grade T91 Type 1
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
SA-335 Grade P91 Type 1
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 213 Grade T91 Type 1
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 335 Grade P91 Type 1
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A31108
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
STBA 26
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Implicit
MATERIAL
A 182 F 91
STANDARD
ASTM
COUNTRY / PRODUCER
United States
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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  • 104Cross References
  • 27Composition
  • 46Mechanical Properties
  • 3Physical Properties
  • 2Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • 12Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 8Total Suppliers