PROPRIETARY X 270 HTM Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: PROPRIETARY

Data updates

Latest Update: 2015-10
Total number of updates: 1
Update History

This material has 16 properties — only a subset is shown here.

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PROPRIETARY X 270 HTM Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
2.7500
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
17.0000
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.7000
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

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PROPRIETARY X 270 HTM Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
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Density
7.6 — 8.1 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 16 properties — only a subset is shown here.

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PROPRIETARY X 270 HTM Heat Treatments

  • Normalised up to 900°C, 4h, cooled naturally either in air or in the furnace. Stress-relieve annealed at 600°C for 4h. Heat treatment 1: Hardened at 1100°C. Tempered at 475°C. Heat treatment 2: Hardened at 1150°C. Tempered at 475°C.

PROPRIETARY X 270 HTM Mechanical Properties

Temperature

PROPERTY / VALUE
Compression Strength
4501 — 4601 MPa
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Rockwell Hardness (HR)
35
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  • -Cross References
  • 7Composition
  • 3Mechanical Properties
  • 4Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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