ASTM A 538 Grade A MAR -18-200 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: United States / ASTM

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This material has 57 properties — only a subset is shown here.

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ASTM A 538 Grade A MAR -18-200 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
0.0500 – 0.1500
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.0300
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Co
VALUE
7.0000 – 8.5000
UNIT
%
CAS NUMBER
7440-48-4
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
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6

A538/A538M: 1982 / Pressure Vessel Plates, Alloy Steel, Precipitation Hardening (Maraging), 18 Percent Nickel

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ASTM A 538 Grade A MAR -18-200 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 57 properties — only a subset is shown here.

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ASTM A 538 Grade A MAR -18-200 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
≥ 1450 MPa
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Elongation, A
≥ 8 %
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Rockwell Hardness (HR)
val1
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Yield Strength, Rp0.2
1380 — 1620 MPa
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ASTM A 538 Grade A MAR -18-200 International Equivalent Materials


Showing 4 of 4 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Implicit

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  • 4Cross References

  • 10Composition
  • 4Mechanical Properties
  • 3Physical Properties
  • -Heat Treatment
  • -Metallography
  • -Machinability

  • -Stress-Strain
  • -Formability
  • 2Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • 34Dimensions
  • -Tribology

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

  • -Total Suppliers