GB QTRSi4Mo1 Cast irons

Material group: Ferrous Alloys / Cast irons
Country / Standard: China / GB

Data updates

Latest Update: 2026-05
Total number of updates: 1
Update History

This material has 19 properties — only a subset is shown here.

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GB QTRSi4Mo1 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
2.7 – 3.5
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mg
VALUE
0.01 – 0.05
UNIT
%
CAS NUMBER
7439-95-4
CRITERIA
Mn
VALUE
≤ 0.3
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
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

GB/T 9437: 2009 / Heat resistant iron castings

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GB QTRSi4Mo1 Physical Properties

Temperature

PROPERTY / VALUE
Service Temperature
≤ 760 °C
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Coefficient of Thermal Expansion (CTE)
12.5 10-6/°C
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This material has 19 properties — only a subset is shown here.

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GB QTRSi4Mo1 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 550 MPa
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Brinell Hardness (HB)
200 — 240
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  • -Cross References
  • 13Composition
  • 4Mechanical Properties
  • 2Physical Properties
  • -Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers