NMX B-302 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: Mexico / NMX

Data updates

Latest Update: 2017-08
Total number of updates: 1
Update History

This material has 34 properties — only a subset is shown here.

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NMX B-302 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.55
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
0.60 – 0.90
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.040
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

NMX-B-302: 1969 / Carbon steel bars, tempered and shirinkaged

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NMX B-302 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 34 properties — only a subset is shown here.

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NMX B-302 Heat Treatments

  • The material under these conditions is uniformly heated to the tempering temperature and is cooled uniformly. The temperature selected for the tempering must be at least 438°C.

NMX B-302 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
≥ 588 MPa
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Elongation, A
≥ 18 %
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
≥ 345 MPa
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  • 5Cross References
  • 5Composition
  • 20Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
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