UNI 14 Ni 6 KT Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: Italy / UNI

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UNI 14 Ni 6 KT Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≥ 0.015
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.18
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.25
UNIT
%
CAS NUMBER
7440-47-3
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
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 14 Ni 6 KT 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 8601 properties — only a subset is shown here.

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UNI 14 Ni 6 KT Heat Treatments

  • The specification contains the following heat treatment: Material with a maximum diameter or thickness of 250mm shall be either normalized (N) or quench hardened and tempered (Q+T) as follows: Normalize at 850 - 900°C and air cool. Harden by oil or water quenching from 850 - 900°C, and then temper at 600 - 690°C and air or furnace cool.

UNI 14 Ni 6 KT Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
470 — 620 MPa
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Brinell Hardness (HB)
≤ 210
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Elongation, A
≥ 18 %
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Impact Energy
val1
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J
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Yield Strength, Rp0.2
val1
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MPa
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  • 2Cross References
  • 10Composition
  • 10Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • 83Joints
  • -Coatings
  • -Dimensions
  • 1Tribology
  • 8491Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers