UNI X 20 CrMoNi 12 01 KW Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: Italy / UNI

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This material has 21 properties — only a subset is shown here.

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UNI X 20 CrMoNi 12 01 KW Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.20 – 0.26
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
11.0 – 12.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.30 – 1.00
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

UNI 7660: 1977 / Forged finished steel products for pressure vessels. Qualities, requirements and tests

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UNI X 20 CrMoNi 12 01 KW Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Density
7.61 — 8.1 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 21 properties — only a subset is shown here.

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UNI X 20 CrMoNi 12 01 KW Heat Treatments


  • Material with a maximum diameter or thickness of 250mm shall be quench hardened and tempered (Q+T) as follows: Harden by oil or water quenching from 1020 - 1070°C, and then temper at 680 - 780°C and air cool.

UNI X 20 CrMoNi 12 01 KW Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
780 — 930 MPa
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Brinell Hardness (HB)
≤ 300
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Elongation, A
≥ 14 %
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Yield Strength, Rp0.2
val1
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MPa
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  • -Cross References

  • 9Composition
  • 8Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

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

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

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

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