PROPRIETARY S240 Stainless steels

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

Data updates

Latest Update: 2019-05
Total number of updates: 2
Update History
2016-12

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PROPRIETARY S240 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.7000 – 1.5000
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.0300
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
11.0000 – 12.5000
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
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
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

Allegheny Technologies Incorporated, Product Data Sheets,

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PROPRIETARY S240 Physical Properties

Temperature

PROPERTY / VALUE
Modulus of Elasticity
179.3 — 215 GPa
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Thermal Conductivity
14.954 W/(m∙°C)
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Density
val1
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kg/dm³
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Heat Capacity
val1
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J/(kg∙°C)
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Melting Temperature
val1
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°C
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Poisson Coefficient
val1
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This material has 108 properties — only a subset is shown here.

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PROPRIETARY S240 Heat Treatments

  • Solution treatment should be performed from 1,675ºF to 1,725ºF (913ºC to 941ºC) for 45 to 75 minutes at temperature followed by cooling to 32ºF (0ºC) and holding for at least four hours to ensure complete transformation to martensite. No “deep freeze” or cryogenic processing is required. Aging is normally carried out from 950ºF to 1,150ºF (510ºC to 621ºC), depending upon the desired final properties. Heat treatment is usually performed in air. Heat treatment of brazed components may be done in inert atmospheres. Reducing atmospheres should not be used because of the potential for nitrogen contamination.

PROPRIETARY S240 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
1544 — 1689 MPa
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Elongation, A
val1
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%
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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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Reduction of Area
val1
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%
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Rockwell Hardness (HR)
val1
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PROPRIETARY S240 International Equivalent Materials

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MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
S11900
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%

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  • 3Cross References
  • 13Composition
  • 51Mechanical Properties
  • 34Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • 4Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • 2Total Suppliers